The Pharmaceutical Care(PC)service is a growing sector.The continuous development of the role of the professional pharmacist in the sector of health services within the pharmacy leads to having an active role in the p...The Pharmaceutical Care(PC)service is a growing sector.The continuous development of the role of the professional pharmacist in the sector of health services within the pharmacy leads to having an active role in the primary care.The PC service has been in operation for years in other western countries such as Spain,the United Kingdom and the United States.Several studies have been carried out,which confirm the benefits of the service in reducing morbidity,hospital admissions and the cost of the health care system.This article sets out the concept of PC and the financial benefit to health expenditure.It also analyzes the Drug Therapy Problem(DTP)and the Patient Care Process.To conclude,a patient case is presented to understand the practical implementation of the theory of the PC and to show how the professional pharmacist reports the pharmacotherapeutic case.展开更多
Background:After the outbreak of COVID-19 in Georgia,the number of patients visiting pharmacies has increased.It became relevant to research the importance of Pharmaceutical Care inprevention of COVID-19.The aim of th...Background:After the outbreak of COVID-19 in Georgia,the number of patients visiting pharmacies has increased.It became relevant to research the importance of Pharmaceutical Care inprevention of COVID-19.The aim of the study was to understand the attitudes of patients and physicians regarding the involvement of pharmacists in prevention of COVID-19,after the spring and autumn waves of pandemic;also,what role can pharmacists take in the future and whether they can transfer Good Pharmaceutical Practice(GPP)to Georgia.Study also tried to capture overall attitudes towards involving pharmacists in healthcare projects such as population rapid testing and vaccinations.Methods:522 patients,1289 pharmacists,and 200 physicians were surveyed regarding their attitudes toward pharmaceutical care during COVID-19 pandemic.Results:The study found that 82.2%of surveyed patients who visited pharmacy during pandemic bought medication and COVID-19 preventive items(face mask,disinfectants,etc.).Out of the surveyed participants,66.9%of patients and 77.1%of pharmacists believe that recommendations given by pharmacists play an important role in the prevention of COVID-19.Study also revealed that 76.6%of pharmacists and 79.3%of patients agree with the statement,the pharmacist should be able to decide whether to choose over-the-counter medications for a patient or refer the patient to a physician.91.8%of patients and 78.3%of pharmacists believe that during a pandemic pharmacist should provide patients who visit pharmacies with complaints of flu,cold,and fever with Pharmaceutical Care;which is agreed by 41.7%of physicians.63.1%of patients,52%of pharmacists,and 45%of physicians have a positive attitude towards administering rapid testing of COVID-19 by pharmacists.The desire for pharmacists to be involved in vaccination was expressed most in patients(43.6%),followed by pharmacists(38.7%),and physicians(36.7%).Conclusions:The study showed similar attitudes of patients and pharmacists-Pharmaceutical Care plays an important role in pandemic prevention.The attitude of patients and pharmacists is positive regarding administering Pharmaceutical Care for patients who come in pharmacies with symptoms of flu and cold.Physicians had more cautious attitude towards the issue,indicating that they may see risks of spreading the virus and aggravating patients’conditions.Most patients who participated in the study believe that pharmacists should be involved in pandemic prevention activities-COVID-19 tests and vaccinations.It is recommended that Georgian healthcare system develops projects that support collaboration of medical professionals and bring us closer to Good Pharmacy Practice(GPP).Training of pharmacists along with physicians in scope of pandemic prevention projects should be planned.展开更多
Objective:To provide reference of pharmaceutical care for the clinical treatment of a severe patient with antibiotic-associated encephalopathy.Methods:Clinical pharmacists participated in the clinical treatment of the...Objective:To provide reference of pharmaceutical care for the clinical treatment of a severe patient with antibiotic-associated encephalopathy.Methods:Clinical pharmacists participated in the clinical treatment of the patient with antibiotic-associated encephalopathy,provided pharmaceutical care for clinicians,including the evaluation of adverse drug events and the prevention of adverse drug interaction and development of anti-infection programs by using Pharmacokinetics/pharmacodynamics theory and therapeutic drug monitoring technique.Results:Through active clinical treatment and pharmaceutical care,the symptoms of patients with encephalopathy were relieved,and the infection was effectively controlled.Conclusion:Clinical pharmacists play a positive role in the treatment for the case with antibiotic associated encephalopathy.展开更多
Objective:To investigate the guiding role of pharmaceutical care in the treatment of bronchial asthma.Methods:Eighty patients with bronchial disease admitted to our hospital from November 2008 to December 1818 were en...Objective:To investigate the guiding role of pharmaceutical care in the treatment of bronchial asthma.Methods:Eighty patients with bronchial disease admitted to our hospital from November 2008 to December 1818 were enrolled in this research.The computer program was used to generate random numbers.The method was divided into two groups:control group and observation group,40 cases respectively.40 patients in the control group were treated with normal medication according to the doctor’s advice;40 patients in the observation group were enrolled in the pharmacological care on the basis of the control group,and the rational drug use was compared between the two groups.Results:The incidence of adverse reactions in the observation group and the control group were 5.00%and 17.50%,respectively,and the difference was statistically significant(P<0.05);the incidence of medication error events in the observation group was 7.50%,which was significantly lower than that of the control group,which was 25.00%,and the difference was statistically significant(P<0.05).The medication errors mainly include improper administration,incorrect dosage,and unscientific administration.Conclusion:The guiding role of pharmaceutical care in bronchial asthma rational drug use can reduce medication error events and ensure rational drug use,which is worthy of popularization in clinical practice.展开更多
Objective:In general hospitals,pharmaceutical care was carried out to reduce the incidence of adverse drug reactions(ADR),and this effect was significant.It can significantly reduce the incidence of adverse drug react...Objective:In general hospitals,pharmaceutical care was carried out to reduce the incidence of adverse drug reactions(ADR),and this effect was significant.It can significantly reduce the incidence of adverse drug reactions and improve the safety of drug therapy.The Joint Surgery Department and the Department of Neurology of Changle County People's Hospital in Shandong province were investigated for the effect of pharmaceutical care on reducing adverse drug reactions.Methods:120 patients were selected from the Department of Joint Surgery and Neurology,Changle County People's Hospital,Shandong Province from May 2015 to May 2020.According to the random table method,the patients were divided into experimental group(60 cases)and control group(60 cases).Control group:routine drug therapy.Experimental group:pharmaceutical care treatment was carried out jointly,and the incidence of adverse reactions was compared between the two groups.Results:The incidence of adverse reactions in experimental group was lower than that in control group.Conclusion:In general hospitals,pharmaceutical care is effective in reducing adverse drug reactions,which can significantly reduce the incidence of adverse drug reactions.At the same time,this improves the safety of drug treatment,which is worthy of clinical promotion.展开更多
Objective To study the problems of pharmaceutical care in retail pharmacies and provide reference for the standardized development of pharmaceutical care in China.Methods Based on the literature of CNKI database,Paret...Objective To study the problems of pharmaceutical care in retail pharmacies and provide reference for the standardized development of pharmaceutical care in China.Methods Based on the literature of CNKI database,Pareto analysis was used to study the present situation of pharmaceutical care in retail pharmacies.Then the following problems in pharmaceutical care were found such as low personnel professional quality,inadequate attention,imperfect laws and regulations,and lack of standard service process.As to the first three problems,there were more research references.But there was less literature on the standard care process.Results and Conclusion Focusing on the customer demand,taking drug sales process as the basic framework of pharmaceutical care standardized process,and combining with the collaboration,the service process including prescription drugs review and OTC drugs purchase consultation is established.This process elaborates the division of staff services as well as the service standards in pre-sale,on-sale,and after-sale stages.Besides,it also puts forward some advice for the previous three problems,which will ensure the smooth implementation of pharmaceutical care in drugstores.展开更多
In Japanese pharmacies, Drug Profile Books (DPBs), which are a type of Personal Health Record (PHR), are incorporated in order to prevent duplicate medication and drug interactions in outpatients (patients) through th...In Japanese pharmacies, Drug Profile Books (DPBs), which are a type of Personal Health Record (PHR), are incorporated in order to prevent duplicate medication and drug interactions in outpatients (patients) through the uniform management of drug administration information. In this study, we tried to clarify the effect on patient safety of brief interventions via DPBs by pharmacists. The study design was a randomized controlled trial on pharmacies as clusters. 65 pharmacies agreed to participate in the study (intervention group (IG): 33;control group (CG): 32). The primary outcomes were: rate of inquiry occurrence, rate of prescription change, and rates of duplicate medications & drug interactions. 56 pharmacies (IG: 29;CG: 27) completed the study. There was a higher tendency for prescription changes in the IG compared to the CG (IG: 0.03%;CG: 0.02%;P = 0.08). In addition, the rate of duplicate medications & drug interactions accounting for the inquiries was significantly higher in the IG than in the CG (IG: 89.2%;CG: 71.9%;P = 0.01). This implied that brief interventions by pharmacists using DPBs had an effect in raising patient safety.展开更多
Background:The demand for the pharmaceutical services in retail pharmacies has increased over the last decade.The aim of the study is to study the requirements of patients/customers in a modern changing environment to...Background:The demand for the pharmaceutical services in retail pharmacies has increased over the last decade.The aim of the study is to study the requirements of patients/customers in a modern changing environment to ensure that appropriate pharmaceutical care is provided to increase customer loyalty while taking into account the concept of pharmaceutical care.The study also examined the competence and attitudes of pharmacists in pharmaceutical care to meet the patient’s requirements.Methods:The study was conducted in December 2020.526 patients/pharmacy customers and 1,309 pharmacists participated in the study,via the online questionnaire.Participants were presented with questions such as“I visit pharmacy to buy products”and used 3 or 5-point scale to indicate their response.Results:When choosing a pharmacy,the costumers/patients prioritize:the quality of pharmaceutical services,speed of service,assortment,competence of the pharmacist and the price of the products;while receiving pharmaceutical care,customers want pharmacists to be oriented on them,to be professional and communicate in an understandable language.In pharmaceutical care,the pharmacists’visions and attitudes are consistent and meet with costumers’requirements.Conclusions:In Georgia,the pharmacy is no longer perceived as just a place to buy a medication,but 50%of customers go to the pharmacy to purchase cosmetic and hygiene products.Modern patient/costumer expectations tend to increase the speed and quality of pharmaceutical services.Considering the risks of the patients,it is recommended to expand the modern approaches-new technologies and online services to improve/accelerate the processes in retail pharmacies.展开更多
Pharmaceutical and personal care products(PPCPs)and corresponding transformation products have caused widespread concern due to their persistent emissions and potential toxicity.They have wide octanol-water partition ...Pharmaceutical and personal care products(PPCPs)and corresponding transformation products have caused widespread concern due to their persistent emissions and potential toxicity.They have wide octanol-water partition coefficients(K_(ow))and different ionization constants(pK_(a))resulting in a poor analysis accuracy and efficiency.A suitable analytical method is the first prerequisite for further research on their environmental behavior to prioritize the substances.This study reviewed a full-scale analytical protocol for environmental samples in the recent ten years:from sampling to instrumental methods.Passive sampling techniques were compared and recommended for long-term continuous and scientific observation.A quick and effective sample extraction and clean-up method are highly required.Chromatographic methods coupled to mass spectrometry for determining PPCPs with a wide range of logK_(ow)(-7.53 to 10.80)were summed up.High-resolution mass spectrometry was confirmed to be a promising strategy for screening unknown transformation products,which would provide a nanogram level of detection limits and more accurate mass resolution.Screening strategies and mass change principles were summarized in detail.The recovery rate was important in multiple contaminants analysis identification and factors affecting the recovery rate of PPCPs were also discussed in this review,including sample matrix,target compounds characteristics,extraction method and solid-phase adsorbent.This review provides useful information for the selection of appropriate analytical methods and future development directions.展开更多
A simple, facile in situ reduction approach is reported for the synthesis of Pd- nanoparticle-decorated phosphotungstic acid (PTA)-MIL-100(Fe) nanocomposites (Pd-H3PW12040-MIL-100(Fe), denoted Pd-PTA-MIL-100(F...A simple, facile in situ reduction approach is reported for the synthesis of Pd- nanoparticle-decorated phosphotungstic acid (PTA)-MIL-100(Fe) nanocomposites (Pd-H3PW12040-MIL-100(Fe), denoted Pd-PTA-MIL-100(Fe)). During the in situ synthesis, PTA is encapsulated into the matrix of MIL-100(Fe) and serves as a UV-switchable reducing agent, resulting in highly dispersed Pd NPs. Using the photocatalytic degradation of pharmaceuticals and personal care products as model reactions, the ternary Pd-PTA-MIL-100(Fe) hybrids exhibited enhanced photocatalytic activity compared with their foundation matrices, the binary PTA-MIL-100(Fe) nanocomposite. Based on photoelectrochemical analyses, the improved photocatalytic performance can be attributed to the well-known electronic conductivity of the Pd NPs, the fast electron transport of PTA, the intense visible-light absorption of MIL-100(Fe), and the matched energy levels of the three components: MIL-100(Fe), PTA, and Pd NPs. Importantly, almost no Fe and W ions were leached from the samples during the reaction, demonstrating the photostability of the Pd-PTA-MIL-100(Fe) composite. In addition, possible photocatalytic reactions mechanisms have also been investigated.展开更多
In this study,a hydrophilic resin named GCHM was fabricated based on poly(N-vinyl pyrrolidone-codivinylbenzene),characterized,and applied as a solid-phase extraction(SPE)material.Up to 44 pharmaceuticals and personal ...In this study,a hydrophilic resin named GCHM was fabricated based on poly(N-vinyl pyrrolidone-codivinylbenzene),characterized,and applied as a solid-phase extraction(SPE)material.Up to 44 pharmaceuticals and personal care products(PPCPs)belonging to 10 classes were recovered in environmental water samples.Different variables affecting extraction,such as adsorbent amount,sample pH,and loading speed,were optimized.Under optimal conditions,the average absolute recovgy of 44 PPCPs was 75.6%using GCHM,indicating a better performance than the commercial Oasis^HLB.SPE with home-made hydrophilic polymeric sorbent followed by ultra-performance liquid chromatography and tandem mass spectrometry was validated,and the method achieved good linearity(r2>0.991,for all analytes).In addition,the method detection limits of target compounds ranged from 0.03 to 0.6 ng/L.The developed method was applied to determine PPCPs in 10 environmental water samples taken from the Yangtze River,Huaihe River,and Taihu Lake,1 groundwater sample from Changzhou in Jiangsu Province,1 wastewater sample from Xiamen and 2 seawater samples from the Jiulong River in Fujian Province,China.In these samples,22 compounds were determined at levels ranging from 0.5 to 1590 ng/L.展开更多
Pharmaceuticals and personal care products(PPCPs)are a unique group of emerging environmental contaminants,due to their inherent ability to induce physiological effects in human at low doses.An increasing number of st...Pharmaceuticals and personal care products(PPCPs)are a unique group of emerging environmental contaminants,due to their inherent ability to induce physiological effects in human at low doses.An increasing number of studies has confirmed the presence of various PPCPs in different environmental compartments,which raises concerns about the potential adverse effects to humans and wildlife.Therefore,this article reviews the current state-of-knowledge on PPCPs in the freshwater aquatic environment.The environmental risk posed by these contaminants is evaluated in light of the persistence,bioaccumulation and toxicity criteria.Available literature on the sources,transport and degradation of PPCPs in the aquatic environment are evaluated,followed by a comprehensive review of the reported concentrations of different PPCP groups in the freshwater aquatic environment(water,sediment and biota)of the five continents.Finally,future perspectives for research on PPCPs in the freshwater aquatic environment are discussed in light of the identified research gaps in current knowledge.展开更多
The presence of pharmaceuticals and personal care products(PPCPs)in the aquatic environment may pose potential threat to the ecosystem and human health,hence PPCPs have aroused much concern over the world.The contamin...The presence of pharmaceuticals and personal care products(PPCPs)in the aquatic environment may pose potential threat to the ecosystem and human health,hence PPCPs have aroused much concern over the world.The contamination of PPCPs in the groundwater,the main source of drinking water supply in many countries and regions,has been extensively studied in the last decade.This paper reviews the occurrence of frequently detected PPCPs,including antibiotics,anti-inflammatories,lipid-regulators,carbamazepine,caffeine,and N,N-diethyl-m-toluamide in groundwater,with special concern to the progress made over the past three years.Possible emission sources for PPCPs in groundwater,such as wastewater and contaminated surface water,landfills,septic systems,livestock breeding and sewer leakage,are summarized.Besides,adsorption,migration and degradation,the dominant mechanisms in the subsurface transport and fate of PPCPs,are discussed,and the insights into the future study of PPCPs in the groundwater are provided.展开更多
The occurrence of 28 pharmaceuticals and personal care products(PPCPs)was investigated in 17 surface water samples(rivers,canals,and lagoons),12 groundwater samples(wells and boreholes,which can also be consumed for d...The occurrence of 28 pharmaceuticals and personal care products(PPCPs)was investigated in 17 surface water samples(rivers,canals,and lagoons),12 groundwater samples(wells and boreholes,which can also be consumed for drinking)and 8 drinking water samples(bottles and sachets)during dry and rainy seasons in Lagos state,Nigeria.The most prevalent compound detected in all samples was amoxicillin(an antibiotic)at median concentrations of 1614,238 and 358 ng/L in surface water,ground water and drinking water,respectively.This is of concern due to potential impact on development of antibioticresistant microbial strains.Other frequently-detected compounds include acetaminophen,nicotine,ibuprofen,and codeine with detection frequencies of more than 70%.Investigation of seasonal variability revealed that glyburide,caffeine,naproxen and diclofenac concentrations were significantly(P<0.05)higher during the dry season(winter),while Nicotine and Codeine levels were higher during the rainy season(summer).The factors influencing such seasonal variability include:dilution by extensive rainfall,agricultural activity(for nicotine)and usage patterns of pharmaceuticals among the local community.Measured concentrations in drinking water samples were used to assess inadvertent human exposure to PPCPs in Nigerian adults.Results revealed average daily exposures of 81,14 and 3 ngƩPPCPs/kg BW/day via drinking borehole,sachet water and bottled water,respectively.While there exists no health-based limit value(HBLV)for chronic exposure to mixtures of PPCPs,our results raise concern and warrant further investigation of the potential health implications of such unintended PPCPs exposure.展开更多
This study mainly focused on the occurrence of pharmaceutical and personal care products(PPCPs)in sewage dewatered sludge and their discharges through sludge disposal from wastewater treatment plants(WWTPs).The data w...This study mainly focused on the occurrence of pharmaceutical and personal care products(PPCPs)in sewage dewatered sludge and their discharges through sludge disposal from wastewater treatment plants(WWTPs).The data were obtained and calculated from seven PPCPs in dewatered sludge collected from 12WWTPs in two typical cities,Beijing and Shenzhen in China.Four of seven PPCPs,diclofenac acid,carbamazepine,mefenamic acid and N,N-diethyl-m-toluamide were detectable in dewatered sludge from Beijing and Shenzhen with concentration up to 4240,11,060,92 and 219μg/kg respectively.While,the other three compounds,trimethoprim,chloramphenicol and bezafibrate were not detected in collected samples from these two cities.The highest discharge of diclofenac acid and carbamazepine were 1023 g/d and 494 g/d respectively.In addition,the total discharge of these four detected PPCPs from each plant ranged from 5 to 1092 g/d in Beijing and 4e497 g/d in Shenzhen.Thus,PPCP discharge through sludge disposal cannot be neglected,and further research on transfer of PPCPs during sludge disposal onto agriculture land and influence of sludge application is required and essential.展开更多
There is continued interest in the occurrence and monitoring of emerging contaminants(ECs)in wastewater treatment plants(WWTPs)to assess their potential impact when released into the environment.The objective of this ...There is continued interest in the occurrence and monitoring of emerging contaminants(ECs)in wastewater treatment plants(WWTPs)to assess their potential impact when released into the environment.The objective of this study was to determine the occurrence of pharmaceutical and personal care products(PPCPs)in WWTP influents and effluents and receiving river waters in Pretoria,South Africa.Targeted screening and identification of PPCPs in the samples was done using liquid chromatography(LC)coupled with high resolution mass spectrometry(HRMS)Orbitrap™HRMS,after clean-up and preconcentration with Waters Oasis®hydrophilic-lipophilic-balanced(HLB)solid phase extraction(SPE)cartridges.Of the 156 target analytes screened in the study,120 could be satisfactorily determined under the study conditions,with 71 and 73 compounds being detected and quantified in the influent and effluent samples,respectively.Concentrations in the influents ranged from<ILOQ-14.2 mgL^-1and those in the effluent from<ILOQ-2.45 mgL^-1.It was found that 84%of the quantified compounds belonged to various classes of pharmaceuticals.Ibuprofen,caffeine,paracetamol and estradiol were the major individual contaminants in influent samples with average concentrations of 14.2,8.68,4.79 and 1.02 mgL^-1,respectively.In the effluent samples,the highest concentrations were recorded for estradiol(2.45 mgL^-1),ibuprofen(1.03 mgL^-1)and efavirenz(0.58 mgL^-1).The highest mean concentrations(above 0.5 mgL^-1)recorded in the river water samples were for ibuprofen,(4.14 mgL^-1downstream;3.19 mgL^-1upstream),caffeine(2.98 mgL^-1downstream;1.42 mgL^-1upstream),paraxanthine(1.22 mgL^-1downstream;0.798 mgL^-1upstream).Analysis of river water samples also revealed that PPCP contamination in the river system cannot be solely attributed to the WWTP effluents.Twenty-four compounds presented in this study are reported for the first time in South African surface waters.展开更多
Pharmaceuticals and personal care products(PPCPs)are emerging environmental contaminants,whose potential risk for the ecological environment has caused wide attention in recent years.In China,quite a large amount of P...Pharmaceuticals and personal care products(PPCPs)are emerging environmental contaminants,whose potential risk for the ecological environment has caused wide attention in recent years.In China,quite a large amount of PPCPs were annually emitted into the environment.Their existence in different matrix has been reported frequently,including river water,sediment and soil.However,the contribution from different sources was seldom reported and still unclear in China.Wastewater treatment plant(WWTP)was usually considered to be the main source to the urban river,but livestock and aquaculture farms were also reported as significant pollution sources of PPCPs due to poor environmental management in China.This study summarized environmental discharges of different PPCPs from various sources and obtained the discharge data through different environment media in Beijing,the statistical source of PPCPs was analyzed in detail.The sources comprised WWTPs,excess sludge,hospital wastewater,municipal untreated wastewater,aquaculture wastewater and landfill leachate.This article helps understand the general situation and the potential risk of PPCPs in Beijing.展开更多
Endocrine disrupting compounds (EDCs), pharmaceuticals and personal care products (PPCPs) have attracted much attention due to widespread contamination in aquatic environment. In this study, we determined 13 EDCs ...Endocrine disrupting compounds (EDCs), pharmaceuticals and personal care products (PPCPs) have attracted much attention due to widespread contamination in aquatic environment. In this study, we determined 13 EDCs and PPCPs in fish blood, bile and muscle by using gas chromatography-mass spectrometry (GC-MS). The limits of quantitation (LOQ) were in the ranges of 0.23-2.54, 0.22-2.36ng·mL^-1, and 0.24-2.57 ng· g^-1 dry weight (dw) for fish blood, bile and muscle, respectively. Recoveries of target compounds spiked into sample matrices and passed through the entire analytical procedure ranged from 65% to 95%, from 60% to 92% and from 62% to 91% for blood, bile and muscle, respectively. The methods were applied to the analysis of fish from a lake in California. Target compounds were relatively low in bile, and only bisphenol A (BPA) and diclofenac were measurable near the LOQ. Seven of 13 compounds were detected in blood, with total concentrations up to 39 ng· g^-1. Only BPA was frequently found in muscle, with mean concentration of 7.26 ng· g^-1 dw. The estimated daily intake of BPA through fish consumption for U.S. resident was significantly lower than the tolerable daily intake recommended by the European Food Safety Authority. This study showed that the exposure to the bisphenol A from fish diet is unlikely to pose a health risk.展开更多
S-scheme heterojunction engineering is an effective strategy to attain distinctive photocatalysts.Herein,a carbon dots modulated S-scheme hetero-structured photocatalyst of Cd_(0.5)Zn_(0.5)S nanoparticles/Bi_(2)MoO_(6...S-scheme heterojunction engineering is an effective strategy to attain distinctive photocatalysts.Herein,a carbon dots modulated S-scheme hetero-structured photocatalyst of Cd_(0.5)Zn_(0.5)S nanoparticles/Bi_(2)MoO_(6) microspheres/carbon dots (CZCBM),aiming to conquer the photo-corrosion and strengthen the photocatalytic property of Cd_(0.5)Zn_(0.5)S,was developed via a facile solvothermal route.Under visible light,the optimal CZCBM-2 affords a 1.8-,1.5-,or 0.6-time reinforcement in the oxytetracycline degradation rate constant compared to Bi_(2)MoO_(6),Cd_(0.5)Zn_(0.5)S or Cd_(0.5)Zn_(0.5)S/Bi_(2)MoO_(6),which is credited to the strengthened visible-light response,increased reactive sites,and efficient dissolution of photo-carriers with optimal redox capacity because of the co-effect of carbon dots and S-scheme heterostructure.Significantly,the photo-corrosion of Cd_(0.5)Zn_(0.5)S is significantly suppressed and CZCBM-2 affords superior stability and reusability during cycling tests.Besides,CZCBM-2 can be well adapted to various environments.The toxicology appraisement unravels the decreased eco-toxicity of most intermediates compared to oxytetracycline.Lastly,an S-scheme charge transfer mechanism with carbon dots as electron reservoir in CZCBM is deduced,which uncloses that •O_(2)− and h+ dominantly account for oxytetracycline eradication and detoxification.This study demonstrates the design of unique carbon dots favored S-scheme heterostructures as an effective “Two Birds with One Stone” strategy to achieve high anti-photo-corrosion performance and reinforced photocatalytic performance of sulfides.展开更多
Emerging contaminants(ECs)have aroused great concerns due to their widespread presence as well as their potential health and ecological risks.Currently monitoring data about ECs in Chinese rural areas are still limite...Emerging contaminants(ECs)have aroused great concerns due to their widespread presence as well as their potential health and ecological risks.Currently monitoring data about ECs in Chinese rural areas are still limited.In this study,Taige Canal basin was selected as a typical rural area for a pilot study.The occurrence of ECs,including pharmaceutical and personal care products(PPCPs),pesticides,plasticizers and flame retardants,in surface water and aquaculture ponds,as well as in wastewater treatment facilities,was comprehensively investigated.The effectiveness of rural decentralized wastewater treatment facilities and centralized wastewater treatment plant(WWTP)in removing ECs was also analyzed.Among 126 commonly used pesticides for target analysis,25 compounds were detected in surface water with high frequency of>80%.Besides,55 PPCPs,21 pesticides and 18 other industrial products were identified by non-target analysis using high resolution mass spectrometry(HRMS).Totally 18 compounds were detected in surface water with a frequency of>60%and 6 of them were found in all samples,including irbesartan,valsartan,propazine,buprofezin,bis(2-ethylhexyl)phthalate(DEHP)and tri-(2-chloroisopropyl)phosphate(TCPP),with mean concentrations of 3022,195,125,218,3738 and 545 ng/L,respectively.There are 29 compounds(11 PPCPs,8 pesticides and 10 other industrial products)detected in water samples from the aquaculture ponds,of which 13 compounds were found in all three ponds.The removal efficiencies of ECs in wastewater treatment facilities are generally limited,except valsartan(82%–86%),nobiletin(100%)and diisodecylphthalate(100%)were found to be significantly removed.展开更多
文摘The Pharmaceutical Care(PC)service is a growing sector.The continuous development of the role of the professional pharmacist in the sector of health services within the pharmacy leads to having an active role in the primary care.The PC service has been in operation for years in other western countries such as Spain,the United Kingdom and the United States.Several studies have been carried out,which confirm the benefits of the service in reducing morbidity,hospital admissions and the cost of the health care system.This article sets out the concept of PC and the financial benefit to health expenditure.It also analyzes the Drug Therapy Problem(DTP)and the Patient Care Process.To conclude,a patient case is presented to understand the practical implementation of the theory of the PC and to show how the professional pharmacist reports the pharmacotherapeutic case.
文摘Background:After the outbreak of COVID-19 in Georgia,the number of patients visiting pharmacies has increased.It became relevant to research the importance of Pharmaceutical Care inprevention of COVID-19.The aim of the study was to understand the attitudes of patients and physicians regarding the involvement of pharmacists in prevention of COVID-19,after the spring and autumn waves of pandemic;also,what role can pharmacists take in the future and whether they can transfer Good Pharmaceutical Practice(GPP)to Georgia.Study also tried to capture overall attitudes towards involving pharmacists in healthcare projects such as population rapid testing and vaccinations.Methods:522 patients,1289 pharmacists,and 200 physicians were surveyed regarding their attitudes toward pharmaceutical care during COVID-19 pandemic.Results:The study found that 82.2%of surveyed patients who visited pharmacy during pandemic bought medication and COVID-19 preventive items(face mask,disinfectants,etc.).Out of the surveyed participants,66.9%of patients and 77.1%of pharmacists believe that recommendations given by pharmacists play an important role in the prevention of COVID-19.Study also revealed that 76.6%of pharmacists and 79.3%of patients agree with the statement,the pharmacist should be able to decide whether to choose over-the-counter medications for a patient or refer the patient to a physician.91.8%of patients and 78.3%of pharmacists believe that during a pandemic pharmacist should provide patients who visit pharmacies with complaints of flu,cold,and fever with Pharmaceutical Care;which is agreed by 41.7%of physicians.63.1%of patients,52%of pharmacists,and 45%of physicians have a positive attitude towards administering rapid testing of COVID-19 by pharmacists.The desire for pharmacists to be involved in vaccination was expressed most in patients(43.6%),followed by pharmacists(38.7%),and physicians(36.7%).Conclusions:The study showed similar attitudes of patients and pharmacists-Pharmaceutical Care plays an important role in pandemic prevention.The attitude of patients and pharmacists is positive regarding administering Pharmaceutical Care for patients who come in pharmacies with symptoms of flu and cold.Physicians had more cautious attitude towards the issue,indicating that they may see risks of spreading the virus and aggravating patients’conditions.Most patients who participated in the study believe that pharmacists should be involved in pandemic prevention activities-COVID-19 tests and vaccinations.It is recommended that Georgian healthcare system develops projects that support collaboration of medical professionals and bring us closer to Good Pharmacy Practice(GPP).Training of pharmacists along with physicians in scope of pandemic prevention projects should be planned.
基金This work was supported by the Key Research Project of Hainan Province(grant No.ZDYF2019141,No.ZDYF2018113)the Scientific research projects of health and family planning industry in Hainan Province(grant No.20A200501).
文摘Objective:To provide reference of pharmaceutical care for the clinical treatment of a severe patient with antibiotic-associated encephalopathy.Methods:Clinical pharmacists participated in the clinical treatment of the patient with antibiotic-associated encephalopathy,provided pharmaceutical care for clinicians,including the evaluation of adverse drug events and the prevention of adverse drug interaction and development of anti-infection programs by using Pharmacokinetics/pharmacodynamics theory and therapeutic drug monitoring technique.Results:Through active clinical treatment and pharmaceutical care,the symptoms of patients with encephalopathy were relieved,and the infection was effectively controlled.Conclusion:Clinical pharmacists play a positive role in the treatment for the case with antibiotic associated encephalopathy.
文摘Objective:To investigate the guiding role of pharmaceutical care in the treatment of bronchial asthma.Methods:Eighty patients with bronchial disease admitted to our hospital from November 2008 to December 1818 were enrolled in this research.The computer program was used to generate random numbers.The method was divided into two groups:control group and observation group,40 cases respectively.40 patients in the control group were treated with normal medication according to the doctor’s advice;40 patients in the observation group were enrolled in the pharmacological care on the basis of the control group,and the rational drug use was compared between the two groups.Results:The incidence of adverse reactions in the observation group and the control group were 5.00%and 17.50%,respectively,and the difference was statistically significant(P<0.05);the incidence of medication error events in the observation group was 7.50%,which was significantly lower than that of the control group,which was 25.00%,and the difference was statistically significant(P<0.05).The medication errors mainly include improper administration,incorrect dosage,and unscientific administration.Conclusion:The guiding role of pharmaceutical care in bronchial asthma rational drug use can reduce medication error events and ensure rational drug use,which is worthy of popularization in clinical practice.
基金Key Research Project of Scientific and Educational Innovation in the Institute of Educational Science,Chinese Academy of Management Sciences(Grant No:KJCX5406).
文摘Objective:In general hospitals,pharmaceutical care was carried out to reduce the incidence of adverse drug reactions(ADR),and this effect was significant.It can significantly reduce the incidence of adverse drug reactions and improve the safety of drug therapy.The Joint Surgery Department and the Department of Neurology of Changle County People's Hospital in Shandong province were investigated for the effect of pharmaceutical care on reducing adverse drug reactions.Methods:120 patients were selected from the Department of Joint Surgery and Neurology,Changle County People's Hospital,Shandong Province from May 2015 to May 2020.According to the random table method,the patients were divided into experimental group(60 cases)and control group(60 cases).Control group:routine drug therapy.Experimental group:pharmaceutical care treatment was carried out jointly,and the incidence of adverse reactions was compared between the two groups.Results:The incidence of adverse reactions in experimental group was lower than that in control group.Conclusion:In general hospitals,pharmaceutical care is effective in reducing adverse drug reactions,which can significantly reduce the incidence of adverse drug reactions.At the same time,this improves the safety of drug treatment,which is worthy of clinical promotion.
文摘Objective To study the problems of pharmaceutical care in retail pharmacies and provide reference for the standardized development of pharmaceutical care in China.Methods Based on the literature of CNKI database,Pareto analysis was used to study the present situation of pharmaceutical care in retail pharmacies.Then the following problems in pharmaceutical care were found such as low personnel professional quality,inadequate attention,imperfect laws and regulations,and lack of standard service process.As to the first three problems,there were more research references.But there was less literature on the standard care process.Results and Conclusion Focusing on the customer demand,taking drug sales process as the basic framework of pharmaceutical care standardized process,and combining with the collaboration,the service process including prescription drugs review and OTC drugs purchase consultation is established.This process elaborates the division of staff services as well as the service standards in pre-sale,on-sale,and after-sale stages.Besides,it also puts forward some advice for the previous three problems,which will ensure the smooth implementation of pharmaceutical care in drugstores.
文摘In Japanese pharmacies, Drug Profile Books (DPBs), which are a type of Personal Health Record (PHR), are incorporated in order to prevent duplicate medication and drug interactions in outpatients (patients) through the uniform management of drug administration information. In this study, we tried to clarify the effect on patient safety of brief interventions via DPBs by pharmacists. The study design was a randomized controlled trial on pharmacies as clusters. 65 pharmacies agreed to participate in the study (intervention group (IG): 33;control group (CG): 32). The primary outcomes were: rate of inquiry occurrence, rate of prescription change, and rates of duplicate medications & drug interactions. 56 pharmacies (IG: 29;CG: 27) completed the study. There was a higher tendency for prescription changes in the IG compared to the CG (IG: 0.03%;CG: 0.02%;P = 0.08). In addition, the rate of duplicate medications & drug interactions accounting for the inquiries was significantly higher in the IG than in the CG (IG: 89.2%;CG: 71.9%;P = 0.01). This implied that brief interventions by pharmacists using DPBs had an effect in raising patient safety.
文摘Background:The demand for the pharmaceutical services in retail pharmacies has increased over the last decade.The aim of the study is to study the requirements of patients/customers in a modern changing environment to ensure that appropriate pharmaceutical care is provided to increase customer loyalty while taking into account the concept of pharmaceutical care.The study also examined the competence and attitudes of pharmacists in pharmaceutical care to meet the patient’s requirements.Methods:The study was conducted in December 2020.526 patients/pharmacy customers and 1,309 pharmacists participated in the study,via the online questionnaire.Participants were presented with questions such as“I visit pharmacy to buy products”and used 3 or 5-point scale to indicate their response.Results:When choosing a pharmacy,the costumers/patients prioritize:the quality of pharmaceutical services,speed of service,assortment,competence of the pharmacist and the price of the products;while receiving pharmaceutical care,customers want pharmacists to be oriented on them,to be professional and communicate in an understandable language.In pharmaceutical care,the pharmacists’visions and attitudes are consistent and meet with costumers’requirements.Conclusions:In Georgia,the pharmacy is no longer perceived as just a place to buy a medication,but 50%of customers go to the pharmacy to purchase cosmetic and hygiene products.Modern patient/costumer expectations tend to increase the speed and quality of pharmaceutical services.Considering the risks of the patients,it is recommended to expand the modern approaches-new technologies and online services to improve/accelerate the processes in retail pharmacies.
基金supported by the National Natural Science Foundation of China(No.41977142)the Major Science and Technology Program for Water Pollution Control and Treatment(No.2018ZX07111003)+1 种基金the Key Technologies Research and Development Program(No.2019YFC1806104)the Fundamental Research Funds for the Central Universities(No.JD2006)。
文摘Pharmaceutical and personal care products(PPCPs)and corresponding transformation products have caused widespread concern due to their persistent emissions and potential toxicity.They have wide octanol-water partition coefficients(K_(ow))and different ionization constants(pK_(a))resulting in a poor analysis accuracy and efficiency.A suitable analytical method is the first prerequisite for further research on their environmental behavior to prioritize the substances.This study reviewed a full-scale analytical protocol for environmental samples in the recent ten years:from sampling to instrumental methods.Passive sampling techniques were compared and recommended for long-term continuous and scientific observation.A quick and effective sample extraction and clean-up method are highly required.Chromatographic methods coupled to mass spectrometry for determining PPCPs with a wide range of logK_(ow)(-7.53 to 10.80)were summed up.High-resolution mass spectrometry was confirmed to be a promising strategy for screening unknown transformation products,which would provide a nanogram level of detection limits and more accurate mass resolution.Screening strategies and mass change principles were summarized in detail.The recovery rate was important in multiple contaminants analysis identification and factors affecting the recovery rate of PPCPs were also discussed in this review,including sample matrix,target compounds characteristics,extraction method and solid-phase adsorbent.This review provides useful information for the selection of appropriate analytical methods and future development directions.
文摘A simple, facile in situ reduction approach is reported for the synthesis of Pd- nanoparticle-decorated phosphotungstic acid (PTA)-MIL-100(Fe) nanocomposites (Pd-H3PW12040-MIL-100(Fe), denoted Pd-PTA-MIL-100(Fe)). During the in situ synthesis, PTA is encapsulated into the matrix of MIL-100(Fe) and serves as a UV-switchable reducing agent, resulting in highly dispersed Pd NPs. Using the photocatalytic degradation of pharmaceuticals and personal care products as model reactions, the ternary Pd-PTA-MIL-100(Fe) hybrids exhibited enhanced photocatalytic activity compared with their foundation matrices, the binary PTA-MIL-100(Fe) nanocomposite. Based on photoelectrochemical analyses, the improved photocatalytic performance can be attributed to the well-known electronic conductivity of the Pd NPs, the fast electron transport of PTA, the intense visible-light absorption of MIL-100(Fe), and the matched energy levels of the three components: MIL-100(Fe), PTA, and Pd NPs. Importantly, almost no Fe and W ions were leached from the samples during the reaction, demonstrating the photostability of the Pd-PTA-MIL-100(Fe) composite. In addition, possible photocatalytic reactions mechanisms have also been investigated.
基金Authors gratefully acknowledge the generous support provided by the National Key R&D Program of China(Grant No.2016YFE0112300)the National Natural Science Foundation of China(Grant Nos.51678290,51438008 and 51778281)+3 种基金Jiangsu Natural Science Fund,China(No.B K 20171342)Jiangsu Provincial Key Medical Discipline(Laboratory)of China(No.Z D X K A 2016008)Jiangsu Preventive Medicine Project of China(No.Y2018081)The authors also thank Dr.Zhe Wang from Nanyang Technological University(Singapore)for his support on this project.
文摘In this study,a hydrophilic resin named GCHM was fabricated based on poly(N-vinyl pyrrolidone-codivinylbenzene),characterized,and applied as a solid-phase extraction(SPE)material.Up to 44 pharmaceuticals and personal care products(PPCPs)belonging to 10 classes were recovered in environmental water samples.Different variables affecting extraction,such as adsorbent amount,sample pH,and loading speed,were optimized.Under optimal conditions,the average absolute recovgy of 44 PPCPs was 75.6%using GCHM,indicating a better performance than the commercial Oasis^HLB.SPE with home-made hydrophilic polymeric sorbent followed by ultra-performance liquid chromatography and tandem mass spectrometry was validated,and the method achieved good linearity(r2>0.991,for all analytes).In addition,the method detection limits of target compounds ranged from 0.03 to 0.6 ng/L.The developed method was applied to determine PPCPs in 10 environmental water samples taken from the Yangtze River,Huaihe River,and Taihu Lake,1 groundwater sample from Changzhou in Jiangsu Province,1 wastewater sample from Xiamen and 2 seawater samples from the Jiulong River in Fujian Province,China.In these samples,22 compounds were determined at levels ranging from 0.5 to 1590 ng/L.
文摘Pharmaceuticals and personal care products(PPCPs)are a unique group of emerging environmental contaminants,due to their inherent ability to induce physiological effects in human at low doses.An increasing number of studies has confirmed the presence of various PPCPs in different environmental compartments,which raises concerns about the potential adverse effects to humans and wildlife.Therefore,this article reviews the current state-of-knowledge on PPCPs in the freshwater aquatic environment.The environmental risk posed by these contaminants is evaluated in light of the persistence,bioaccumulation and toxicity criteria.Available literature on the sources,transport and degradation of PPCPs in the aquatic environment are evaluated,followed by a comprehensive review of the reported concentrations of different PPCP groups in the freshwater aquatic environment(water,sediment and biota)of the five continents.Finally,future perspectives for research on PPCPs in the freshwater aquatic environment are discussed in light of the identified research gaps in current knowledge.
基金supported by the National Natural Science Foundation(51208199,51408425)the Fundamental Research Funds for the Central Universities(22A201514057)+1 种基金Beijing Key Laboratory for Emerging Organic Contaminants Control,the Foundation of The State Key Laboratory of Pollution Control and Resource Reuse,China(PCRRG 11017)the Specialized Research Fund for the Doctoral Program of Higher Education of China(20130072120033).
文摘The presence of pharmaceuticals and personal care products(PPCPs)in the aquatic environment may pose potential threat to the ecosystem and human health,hence PPCPs have aroused much concern over the world.The contamination of PPCPs in the groundwater,the main source of drinking water supply in many countries and regions,has been extensively studied in the last decade.This paper reviews the occurrence of frequently detected PPCPs,including antibiotics,anti-inflammatories,lipid-regulators,carbamazepine,caffeine,and N,N-diethyl-m-toluamide in groundwater,with special concern to the progress made over the past three years.Possible emission sources for PPCPs in groundwater,such as wastewater and contaminated surface water,landfills,septic systems,livestock breeding and sewer leakage,are summarized.Besides,adsorption,migration and degradation,the dominant mechanisms in the subsurface transport and fate of PPCPs,are discussed,and the insights into the future study of PPCPs in the groundwater are provided.
文摘The occurrence of 28 pharmaceuticals and personal care products(PPCPs)was investigated in 17 surface water samples(rivers,canals,and lagoons),12 groundwater samples(wells and boreholes,which can also be consumed for drinking)and 8 drinking water samples(bottles and sachets)during dry and rainy seasons in Lagos state,Nigeria.The most prevalent compound detected in all samples was amoxicillin(an antibiotic)at median concentrations of 1614,238 and 358 ng/L in surface water,ground water and drinking water,respectively.This is of concern due to potential impact on development of antibioticresistant microbial strains.Other frequently-detected compounds include acetaminophen,nicotine,ibuprofen,and codeine with detection frequencies of more than 70%.Investigation of seasonal variability revealed that glyburide,caffeine,naproxen and diclofenac concentrations were significantly(P<0.05)higher during the dry season(winter),while Nicotine and Codeine levels were higher during the rainy season(summer).The factors influencing such seasonal variability include:dilution by extensive rainfall,agricultural activity(for nicotine)and usage patterns of pharmaceuticals among the local community.Measured concentrations in drinking water samples were used to assess inadvertent human exposure to PPCPs in Nigerian adults.Results revealed average daily exposures of 81,14 and 3 ngƩPPCPs/kg BW/day via drinking borehole,sachet water and bottled water,respectively.While there exists no health-based limit value(HBLV)for chronic exposure to mixtures of PPCPs,our results raise concern and warrant further investigation of the potential health implications of such unintended PPCPs exposure.
基金supported by Tsinghua University e Veolia Environment Joint Research Center for Advanced Environment Technology and the Program for Changjiang Scholars and Innovative Research Team in University(IRT1261).
文摘This study mainly focused on the occurrence of pharmaceutical and personal care products(PPCPs)in sewage dewatered sludge and their discharges through sludge disposal from wastewater treatment plants(WWTPs).The data were obtained and calculated from seven PPCPs in dewatered sludge collected from 12WWTPs in two typical cities,Beijing and Shenzhen in China.Four of seven PPCPs,diclofenac acid,carbamazepine,mefenamic acid and N,N-diethyl-m-toluamide were detectable in dewatered sludge from Beijing and Shenzhen with concentration up to 4240,11,060,92 and 219μg/kg respectively.While,the other three compounds,trimethoprim,chloramphenicol and bezafibrate were not detected in collected samples from these two cities.The highest discharge of diclofenac acid and carbamazepine were 1023 g/d and 494 g/d respectively.In addition,the total discharge of these four detected PPCPs from each plant ranged from 5 to 1092 g/d in Beijing and 4e497 g/d in Shenzhen.Thus,PPCP discharge through sludge disposal cannot be neglected,and further research on transfer of PPCPs during sludge disposal onto agriculture land and influence of sludge application is required and essential.
基金the Water Research Commission(WRC Project No.K5-2516)for financial support for the project.
文摘There is continued interest in the occurrence and monitoring of emerging contaminants(ECs)in wastewater treatment plants(WWTPs)to assess their potential impact when released into the environment.The objective of this study was to determine the occurrence of pharmaceutical and personal care products(PPCPs)in WWTP influents and effluents and receiving river waters in Pretoria,South Africa.Targeted screening and identification of PPCPs in the samples was done using liquid chromatography(LC)coupled with high resolution mass spectrometry(HRMS)Orbitrap™HRMS,after clean-up and preconcentration with Waters Oasis®hydrophilic-lipophilic-balanced(HLB)solid phase extraction(SPE)cartridges.Of the 156 target analytes screened in the study,120 could be satisfactorily determined under the study conditions,with 71 and 73 compounds being detected and quantified in the influent and effluent samples,respectively.Concentrations in the influents ranged from<ILOQ-14.2 mgL^-1and those in the effluent from<ILOQ-2.45 mgL^-1.It was found that 84%of the quantified compounds belonged to various classes of pharmaceuticals.Ibuprofen,caffeine,paracetamol and estradiol were the major individual contaminants in influent samples with average concentrations of 14.2,8.68,4.79 and 1.02 mgL^-1,respectively.In the effluent samples,the highest concentrations were recorded for estradiol(2.45 mgL^-1),ibuprofen(1.03 mgL^-1)and efavirenz(0.58 mgL^-1).The highest mean concentrations(above 0.5 mgL^-1)recorded in the river water samples were for ibuprofen,(4.14 mgL^-1downstream;3.19 mgL^-1upstream),caffeine(2.98 mgL^-1downstream;1.42 mgL^-1upstream),paraxanthine(1.22 mgL^-1downstream;0.798 mgL^-1upstream).Analysis of river water samples also revealed that PPCP contamination in the river system cannot be solely attributed to the WWTP effluents.Twenty-four compounds presented in this study are reported for the first time in South African surface waters.
基金This work was financially supported by the National Natural Science Foundation of China(41503073)Tsinghua University Initiative Scientific Research Program,and Program for Changjiang Scholars and Innovative Research Team in University(IRT1261).
文摘Pharmaceuticals and personal care products(PPCPs)are emerging environmental contaminants,whose potential risk for the ecological environment has caused wide attention in recent years.In China,quite a large amount of PPCPs were annually emitted into the environment.Their existence in different matrix has been reported frequently,including river water,sediment and soil.However,the contribution from different sources was seldom reported and still unclear in China.Wastewater treatment plant(WWTP)was usually considered to be the main source to the urban river,but livestock and aquaculture farms were also reported as significant pollution sources of PPCPs due to poor environmental management in China.This study summarized environmental discharges of different PPCPs from various sources and obtained the discharge data through different environment media in Beijing,the statistical source of PPCPs was analyzed in detail.The sources comprised WWTPs,excess sludge,hospital wastewater,municipal untreated wastewater,aquaculture wastewater and landfill leachate.This article helps understand the general situation and the potential risk of PPCPs in Beijing.
文摘Endocrine disrupting compounds (EDCs), pharmaceuticals and personal care products (PPCPs) have attracted much attention due to widespread contamination in aquatic environment. In this study, we determined 13 EDCs and PPCPs in fish blood, bile and muscle by using gas chromatography-mass spectrometry (GC-MS). The limits of quantitation (LOQ) were in the ranges of 0.23-2.54, 0.22-2.36ng·mL^-1, and 0.24-2.57 ng· g^-1 dry weight (dw) for fish blood, bile and muscle, respectively. Recoveries of target compounds spiked into sample matrices and passed through the entire analytical procedure ranged from 65% to 95%, from 60% to 92% and from 62% to 91% for blood, bile and muscle, respectively. The methods were applied to the analysis of fish from a lake in California. Target compounds were relatively low in bile, and only bisphenol A (BPA) and diclofenac were measurable near the LOQ. Seven of 13 compounds were detected in blood, with total concentrations up to 39 ng· g^-1. Only BPA was frequently found in muscle, with mean concentration of 7.26 ng· g^-1 dw. The estimated daily intake of BPA through fish consumption for U.S. resident was significantly lower than the tolerable daily intake recommended by the European Food Safety Authority. This study showed that the exposure to the bisphenol A from fish diet is unlikely to pose a health risk.
基金financially supported by the National Natural Science Foundation of China (Nos.U1809214 and 51708504)the Natural Science Foundation of Zhejiang Province (Nos.LY20E080014 and LTGN23E080001)+1 种基金the Zhejiang Province Industrial Innovation Service Complex "Opening list and Hanging" Project (No.YY-2021C1006)and the Science and Technology Project of Zhoushan (No.2022C41011).
文摘S-scheme heterojunction engineering is an effective strategy to attain distinctive photocatalysts.Herein,a carbon dots modulated S-scheme hetero-structured photocatalyst of Cd_(0.5)Zn_(0.5)S nanoparticles/Bi_(2)MoO_(6) microspheres/carbon dots (CZCBM),aiming to conquer the photo-corrosion and strengthen the photocatalytic property of Cd_(0.5)Zn_(0.5)S,was developed via a facile solvothermal route.Under visible light,the optimal CZCBM-2 affords a 1.8-,1.5-,or 0.6-time reinforcement in the oxytetracycline degradation rate constant compared to Bi_(2)MoO_(6),Cd_(0.5)Zn_(0.5)S or Cd_(0.5)Zn_(0.5)S/Bi_(2)MoO_(6),which is credited to the strengthened visible-light response,increased reactive sites,and efficient dissolution of photo-carriers with optimal redox capacity because of the co-effect of carbon dots and S-scheme heterostructure.Significantly,the photo-corrosion of Cd_(0.5)Zn_(0.5)S is significantly suppressed and CZCBM-2 affords superior stability and reusability during cycling tests.Besides,CZCBM-2 can be well adapted to various environments.The toxicology appraisement unravels the decreased eco-toxicity of most intermediates compared to oxytetracycline.Lastly,an S-scheme charge transfer mechanism with carbon dots as electron reservoir in CZCBM is deduced,which uncloses that •O_(2)− and h+ dominantly account for oxytetracycline eradication and detoxification.This study demonstrates the design of unique carbon dots favored S-scheme heterostructures as an effective “Two Birds with One Stone” strategy to achieve high anti-photo-corrosion performance and reinforced photocatalytic performance of sulfides.
基金supported by the Major Science and Technology Program for Water Pollution Control and Treatment in China(No.2017ZX07202004).
文摘Emerging contaminants(ECs)have aroused great concerns due to their widespread presence as well as their potential health and ecological risks.Currently monitoring data about ECs in Chinese rural areas are still limited.In this study,Taige Canal basin was selected as a typical rural area for a pilot study.The occurrence of ECs,including pharmaceutical and personal care products(PPCPs),pesticides,plasticizers and flame retardants,in surface water and aquaculture ponds,as well as in wastewater treatment facilities,was comprehensively investigated.The effectiveness of rural decentralized wastewater treatment facilities and centralized wastewater treatment plant(WWTP)in removing ECs was also analyzed.Among 126 commonly used pesticides for target analysis,25 compounds were detected in surface water with high frequency of>80%.Besides,55 PPCPs,21 pesticides and 18 other industrial products were identified by non-target analysis using high resolution mass spectrometry(HRMS).Totally 18 compounds were detected in surface water with a frequency of>60%and 6 of them were found in all samples,including irbesartan,valsartan,propazine,buprofezin,bis(2-ethylhexyl)phthalate(DEHP)and tri-(2-chloroisopropyl)phosphate(TCPP),with mean concentrations of 3022,195,125,218,3738 and 545 ng/L,respectively.There are 29 compounds(11 PPCPs,8 pesticides and 10 other industrial products)detected in water samples from the aquaculture ponds,of which 13 compounds were found in all three ponds.The removal efficiencies of ECs in wastewater treatment facilities are generally limited,except valsartan(82%–86%),nobiletin(100%)and diisodecylphthalate(100%)were found to be significantly removed.