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The Case Report on the Effectiveness of Infrared Light on Acid Burn Victim
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作者 Maha Farhina 《Case Reports in Clinical Medicine》 2022年第12期527-533,共7页
Burn injuries are common in Pakistan. However, most people are reluctant to have infrared treatment for their wounds. This study investigated the efficacy of infrared treatment on burn wounds. The procedure involved a... Burn injuries are common in Pakistan. However, most people are reluctant to have infrared treatment for their wounds. This study investigated the efficacy of infrared treatment on burn wounds. The procedure involved a burn victim who had sustained acid burns to the neck and face. Nectrotomy was done to remove dead tissue from the burn wound, and after treatment, Low-Level Light was used to reduce pain and enhance healing in the patient. Initial results showed mild hypertrophic scars, no stiffness. Post-operation therapy included physical training regimens and massage. The patient showed satisfactory results and felt less tightness in neck movements by the following treatment. The article concludes by showing that infrared light promoted repair and regrowth at a cellular level. 展开更多
关键词 Infrared Therapy acid burns PHOTOBIOMODULATION Low Light Laser Therapy Red Light
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Potentially fatal electrolyte imbalance caused by severe hydrofluoric acid burns combined with inhalation injury: A case report 被引量:3
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作者 He Fang Guang-Yi Wang +2 位作者 Xun Wang Fang He Jian-Dong Su 《World Journal of Clinical Cases》 SCIE 2019年第20期3341-3346,共6页
BACKGROUND Hydrofluoric acid(HF)is one of the most common causes of chemical burns.HF burns can cause wounds that deepen and progress aggressively.As a result,HF burns are often severe even if they involve a small are... BACKGROUND Hydrofluoric acid(HF)is one of the most common causes of chemical burns.HF burns can cause wounds that deepen and progress aggressively.As a result,HF burns are often severe even if they involve a small area of the skin.Published cases of HF burns have mostly reported small HF burn areas.Few cases of HF inhalation injury have been reported to date.CASE SUMMARY A 24-year-old man suffered from extensive hydrofluoric acid burns covering 60%of the total body surface area(TBSA),including deep second degree burns on 47%and third degree burns on 13%of the TBSA,after he fell into a pickling pool containing 15%HF.Comprehensive treatments were carried out after the patient was admitted.Ventricular fibrillation occurred 9 times within the first 2 h,and the lowest serum Ca2+concentration was 0.192 mmol/L.A dose of calcium gluconate(37 g)was intravenously supplied during the first 24 h,and the total amount of calcium gluconate supplementation was 343 g.Extracorporeal membrane oxygenation(ECMO)was applied for 8 d to handle the acute respiratory distress syndrome(ARDS)induced by the HF inhalation injury.The patient was discharged after 99 d of comprehensive treatment,including skin grafting.CONCLUSION Extensive HF burns combined with an inhalation injury led to a potentially fatal electrolyte imbalance and ARDS.Adequate and timely calcium supplementation and ECMO application were the keys to successful treatment of the patient. 展开更多
关键词 Hydrofluoric acid burn INHALATION injury HYPOCALCEMIA Acute respiratory distress syndrome EXTRACORPOREAL membrane OXYGENATION Case report
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Humic Acid Effects on Reducing Corn Leaf Burn Caused by Foliar Spray of Urea-Ammonium Nitrate at Different Humic Acid/Urea-Ammonium Nitrate Ratios
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作者 Xinhua Yin 《Open Journal of Soil Science》 2024年第3期180-189,共10页
Technologies for reducing corn leaf burn caused by foliar spray of urea-ammonium nitrate (UAN) during the early growing season are limited. A field experiment was carried out to evaluate the effects of humic acid on c... Technologies for reducing corn leaf burn caused by foliar spray of urea-ammonium nitrate (UAN) during the early growing season are limited. A field experiment was carried out to evaluate the effects of humic acid on corn leaf burn caused by foliar spray of undiluted UAN solution on corn canopy at Jackson, TN in 2018. Thirteen treatments of the mixtures of UAN and humic acid were evaluated at V6 of corn with different UAN application rates and different UAN/humic acid ratios. Leaf burn during 1 2, 3, 4, 5, 6, 7, and 14 days after UAN foliar spray significantly differed between with or without humic acid addition. The addition of humic acid to UAN significantly reduced leaf burn at each UAN application rate (15, 25, and 35 gal/acre). The reduction of leaf burn was enhanced as the humic acid/UAN ratio went up from 10% to 30%. Leaf burn due to foliar application of UAN became severer with higher UAN rates. The linear regression of leaf burn 14 days after application with humic acid/UAN ratio was highly significant and negative. However, the linear regression of leaf burn 14 days after application with the UAN application rate was highly significant and positive. In conclusion, adding humic acid to foliar-applied UAN is beneficial for reducing corn leaf burn during the early growing season. 展开更多
关键词 Humic acid Urea-Ammonium Nitrate CORN Leaf burn N rate Ratio
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Upper gastrointestinal burns by peroxyacetic acid in children:a review of seven cases
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作者 Zhibin Niu Keren Zhang Weilin Wang 《Journal of Nanjing Medical University》 2006年第1期30-33,共4页
Objective: To study the clinical features of upper gastrointestinal burns by peroxyacetic acid (PA) in children and improve its treatment and outcome. Methods: The clinical materials of 7 cases with upper gastroin... Objective: To study the clinical features of upper gastrointestinal burns by peroxyacetic acid (PA) in children and improve its treatment and outcome. Methods: The clinical materials of 7 cases with upper gastrointestinal burns by PA including clinical presentation, treatment and outcomes were reviewed. Results: There were six boys and one girl. The concentration of the swallowed PA was from 10% to 20% and the amount was 3-10 ml. The mainly bums were located in esophagus in one case, stomach in three cases, both esophagus and stomach in three cases. The gastrostomy and operation of dilating esophagus were performed in the cases with esophageal stricture. The pyloroplasty or gastroduodenostomy was performed in the cases with pyloric obstruction. All the cases were followed up for 12-18 months, dysfunction of esophagus or(and) cardia as well as stiffness and hypodynamia of the stomach was showed in most of the patients. Conclusion: The degree of upper gastrointestinal burns by PA varied according to different concentrations of PA which was swallowed. Correct emergent measures in the acute stage of the burns was very important, gastric tube should be inserted and go through esophagus and pylorus and must be retained for 5-8 weeks to prevent the stricture of esophagus and pylortts, otherwise the tube could act as a passage of nutriment. Prophylaxis of upper gastrointestinal bums by PA is very important because the treatment of the burns is difficulty and the outcomes are not always satisfactory. 展开更多
关键词 peroxyacetic acid caustic burns upper gastrointestinal tract
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Serious Burn by Sulfuric Acid: Case Report of Particular Therapeutic Strategy in a Non-Specialized ICU at Hôpital Principal de Dakar (HPD) Sénégal
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作者 M. M. Fall E. H. M. Niang +3 位作者 C. D. Niang B. Niang A. K. Toure B. Diatta 《Open Journal of Emergency Medicine》 2016年第3期62-68,共8页
Managing severe burns remains problematic due to the lack of specialized units, but also because of the delay in implementing emergency care. The aim is to show that an adapted strategy, can lead to satisfying managem... Managing severe burns remains problematic due to the lack of specialized units, but also because of the delay in implementing emergency care. The aim is to show that an adapted strategy, can lead to satisfying management of chemical burns. The authors report retrospectively the case of a patient admitted for chemical burns, and treated in a non-specialized intensive care unit;a 38 years old male, referred for burns by sulfuric acid at his workplace. On admission to H15, the clinic did not reveal any vital organs failure. Burns were localized on two legs and soles of the two feet (18% TBSA). Treatment combined daily dressings with silver sulfadiazine. On day 14, the wound healing associated occlusive gauze dressing, iodine cream application, and mechanical debridement. On day 47, a 5% dermal autograft performed on right foot favored with good attachment grafts. On day 58, the patient was released after complete skin recovery. Then, in a non-specialized burn unit and without early surgery access, our wound healing adapted strategy was successful. In Senegal, chemical burns represent about 2.5% of burn cases. They are often from accidents on occupation job, while generally in Africa chemical burns result from criminal attacks. Patients with severe lesions are admitted in non-specialized environments after an extended time of transfer, and don’t have efficient initial care. This may explain the high morbidity and mortality after burns in our country. The lack of surgical facilities such as skin substitutes, in non-specialized unit on low or median income countries (LMICs), explains this long period of wound healing. The treatment of severe burn in LMICs is hazardous. 展开更多
关键词 Chemical burns Sulfuric acid Adapted Strategy Senegal
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Hypertrophic Scar Formation and Wound Healing Modulation Fatty Acids as Modulators of Severe Scars
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作者 Bárbara Díaz Valerie Nuñ ez 《Modern Plastic Surgery》 2023年第1期41-51,共11页
Scar tissue usually generates severe discomfort in the short and long term. Common symptoms include anesthetics sequelae, pruritus, joint malfunction, new wounds on the scar surface, and pain. There are several treatm... Scar tissue usually generates severe discomfort in the short and long term. Common symptoms include anesthetics sequelae, pruritus, joint malfunction, new wounds on the scar surface, and pain. There are several treatments for scars, like compression, topical or intralesional steroid infiltration, 5-fluorouracil, dermabrasion, and surgeries with new scar tissue. For adult patients, it is easier to choose the treatment. However, compression is commonly applied in children to prevent treatments that have adverse effects. This study reports the outcomes of 15 patients submitted to abdominoplasty, traumatic wounds and post-burn scar treatments, which showed significant changes after the continuous use of an ointment composed of petrolatum, cod liver oil, BHT, Chamomilla recutita (chamomile) oil, Helianthus annuus (sunflower) oil, and Prunus amygdalus dulcis (sweet almond) oil. As components of the stratum corneum, unsaturated fatty acids influence the cutaneous structural and immune status and permeability. They also interfere with the maturation and differentiation of the stratum corneum and inhibit the production of proinflammatory eicosanoids, reactive species (ROS and RNS), and cytokines, thereby influencing the inflammatory response and possibly wound healing. This article aims to share our experience with the regular use of an ointment in adult and pediatric patients for three months. The increase in proinflammatory cytokine production at wound sites, resulting in a noninvasive, therapeutical, and effective cutaneous wound healing and scarring modulation, may provide a physiopathological explanation for the fast improvement of scars. 展开更多
关键词 SCARRING burn Scar Inflammatory Modulation Cytokine SEQUELAE Fatty acids EICOSANOIDS Non-Adverse Effects Aesthetics HYPERTROPHIC
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脂质体凝胶负载油酸促进慢性烧伤创面的修复 被引量:1
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作者 王毛毛 张庆 +1 位作者 吴博文 谢岩 《中国组织工程研究》 CAS 北大核心 2024年第22期3524-3531,共8页
背景:油酸能够调节炎症和免疫反应,具有修复皮肤创面的潜力,但油酸在病灶处滞留时间短、在空气中易自氧化而变质,需要合适的药物载体才能充分发挥疗效。目的:探究油酸脂质体凝胶修复慢性烧伤创面的疗效。方法:采用薄膜分散法制备油酸脂... 背景:油酸能够调节炎症和免疫反应,具有修复皮肤创面的潜力,但油酸在病灶处滞留时间短、在空气中易自氧化而变质,需要合适的药物载体才能充分发挥疗效。目的:探究油酸脂质体凝胶修复慢性烧伤创面的疗效。方法:采用薄膜分散法制备油酸脂质体溶液,随后溶于泊洛沙姆凝胶基质中制备油酸脂质体凝胶。①体外实验:将不同体积油酸脂质体凝胶加入细胞培养基中制备油酸脂质体凝胶溶液(体积比分别为1∶3、1∶9、1∶27),应用阿尔玛蓝染色检测不同体积比油酸脂质体凝胶溶液对人角质形成细胞和人成纤维细胞增殖的影响,结晶紫染色观察细胞形态。②体内实验:取成年SD大鼠,采用背部全层烧伤叠加创面皮下注射表柔比星复合因素构建慢性烧伤创面模型,将造模成功的30只大鼠随机分5组,每组6只:油酸脂质体凝胶组、油酸组、脂质体凝胶组、阳性对照组、阴性对照组创面分别外敷涂抹油酸脂质体凝胶、油酸、脂质体凝胶、重组人表皮生长因子凝胶与生理盐水的纱布,隔日换药一次,总共给药16次,观察创面愈合情况。结果与结论:①体外实验:阿尔玛蓝试剂检测与结晶紫染色显示,体积比为1∶9的油酸脂质体凝胶溶液可促进人角质形成细胞和人成纤维细胞的增殖。②体内实验:油酸脂质体凝胶组创面愈合时间短于其他4组(P<0.01),用药第4,8,12,16,20天的创面愈合率高于其他4组(P<0.01)。给药结束后,苏木精-伊红染色显示5组创面均上皮化愈合,其中油酸脂质体凝胶组表皮厚度最接近于正常皮肤,并且优于其他4组;免疫组化染色显示,油酸脂质体凝胶组创面中细胞角蛋白10、肿瘤蛋白63、α-平滑肌肌动蛋白、Ⅰ型胶原、肿瘤坏死因子α、白细胞介素6、丙二醛及超氧化物歧化酶的表达最接近正常皮肤,并且优于其他4组。用药第12,32天,油酸脂质体凝胶组创面匀浆上清中肿瘤坏死因子α、白细胞介素6、丙二醛及超氧化物歧化酶的表达最接近正常皮肤,并且优于其他4组。③结果表明:油酸脂质体凝胶可促进角质形成细胞和成纤维细胞的增殖,减轻炎症反应及氧化应激损伤,促进慢性烧伤创面的愈合。 展开更多
关键词 慢性烧伤创面 脂质体凝胶 油酸 创面愈合 炎症反应 氧化应激 细胞增殖
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1200 t/d硫酸装置升级改造总结
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作者 瞿明军 《硫酸工业》 CAS 2024年第3期21-24,共4页
介绍了1套1200 t/d硫黄掺烧硫酸亚铁制酸装置改造为硫黄制酸装置的改造思路及实施过程。改造利旧风机、转化、干吸、低温余热回收、尾吸等工序,新建熔硫、焚硫工序和发电系统。将高、中位余热回收蒸汽参数从3.82 MPa、450℃提升到5.3 MP... 介绍了1套1200 t/d硫黄掺烧硫酸亚铁制酸装置改造为硫黄制酸装置的改造思路及实施过程。改造利旧风机、转化、干吸、低温余热回收、尾吸等工序,新建熔硫、焚硫工序和发电系统。将高、中位余热回收蒸汽参数从3.82 MPa、450℃提升到5.3 MPa、490℃,同时配套相应参数的背压汽轮机驱动风机和背压余热发电。改造后产汽率1.65 t/t,系统总转化率99.86%,排放尾气ρ(SO_(2))≤10 mg/m^(3),硫酸雾质量浓度小于或等于5 mg/m^(3)。 展开更多
关键词 硫酸装置 硫黄制酸 升级改造 运行总结
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超脉冲CO_(2)点阵激光联合硅凝胶治疗烧伤后增生性瘢痕的临床疗效
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作者 李伟 张帆 《中国医疗美容》 2024年第8期15-17,112,共4页
目的探讨超脉冲CO_(2)点阵激光联合硅凝胶治疗烧伤后增生性瘢痕的临床疗效。方法选择2023年4月至2024年4月郑州大学附属洛阳中心医院收治的98例增生性瘢痕患者为研究对象,根据治疗方法不同分成对照组与观察组,每组49例。对照组患者予超... 目的探讨超脉冲CO_(2)点阵激光联合硅凝胶治疗烧伤后增生性瘢痕的临床疗效。方法选择2023年4月至2024年4月郑州大学附属洛阳中心医院收治的98例增生性瘢痕患者为研究对象,根据治疗方法不同分成对照组与观察组,每组49例。对照组患者予超脉冲CO_(2)点阵激光治疗;观察组患者予超脉冲CO_(2)点阵激光治疗,并使用硅凝胶涂抹。两组患者观察24周。比较两组患者的疼痛视觉模拟评分法(visual analogue scales,VAS)评分、临床疗效以及烧伤后增生性瘢痕相关指标。结果治疗后,观察组患者VAS评分低于对照组,差异有统计学意义(P<0.05);观察组患者的总有效率93.88%,高于对照组75.51%,差异有统计学意义(P<0.05)。治疗后,观察组患者的温哥华瘢痕量表、观察者瘢痕评估量表、患者瘢痕评估量表评分低于对照组,差异均有统计学意义(P<0.05)。结论超脉冲CO_(2)点阵激光联合硅凝胶治疗烧伤后增生性瘢痕的效果显著,能减轻患者的疼痛,改善烧伤后增生性瘢痕相关症状。 展开更多
关键词 增生性瘢痕 超脉冲CO_(2)点阵激光 硅凝胶 烧伤
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大型硫黄制酸装置钟罩阀优化与改进
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作者 张永云 《硫酸工业》 CAS 2024年第2期23-26,共4页
钟罩阀是控制硫黄制酸装置转化器一段床层进口温度的核心设备,原钟罩阀在使用过程中存在阀芯耐火浇筑料脱落、阀芯窜动及摆动、填料密封泄漏、温度调节性能差、现场须手动操作等问题,严重制约了硫酸装置长周期安全稳定运行。对钟罩阀存... 钟罩阀是控制硫黄制酸装置转化器一段床层进口温度的核心设备,原钟罩阀在使用过程中存在阀芯耐火浇筑料脱落、阀芯窜动及摆动、填料密封泄漏、温度调节性能差、现场须手动操作等问题,严重制约了硫酸装置长周期安全稳定运行。对钟罩阀存在的问题进行分析,对钟罩阀的结构、调节性能及控制方式进行了优化改进,达到了预期效果。 展开更多
关键词 硫黄制酸装置 钟罩阀 优化 改进
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方池式熔硫装置运行中存在的问题及改进措施
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作者 廖达炎 冯俊杰 +1 位作者 杨剑森 陈长青 《硫酸工业》 CAS 2024年第2期57-60,共4页
介绍了宜都兴发化工有限公司硫黄制酸装置方池式熔硫槽与过滤槽生产过程中存在的问题,分析了液硫产能逐步衰减的原因,针对物料含有大块杂质、蛇管间距过窄、盘管布局及结构不合理、搅拌桨数量不足,以及搅拌器设计不合理等情况进行改进,... 介绍了宜都兴发化工有限公司硫黄制酸装置方池式熔硫槽与过滤槽生产过程中存在的问题,分析了液硫产能逐步衰减的原因,针对物料含有大块杂质、蛇管间距过窄、盘管布局及结构不合理、搅拌桨数量不足,以及搅拌器设计不合理等情况进行改进,并提出建议。 展开更多
关键词 硫黄制酸 熔硫槽 过滤槽 盘管 堵塞
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国产催化剂在二期800 kt/a硫酸装置上的应用
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作者 韩永明 《硫酸工业》 CAS 2024年第2期20-22,26,共4页
介绍了天安化工二期800 kt/a硫黄制酸装置停车检修前的运行情况,针对装置存在的转化器一段床层阻力上升较快,总转化率逐年下降等问题,提出对转化器一段和四段催化剂进行筛分、调整,补充部分国产催化剂。装置性能考核结果表明,补充部分... 介绍了天安化工二期800 kt/a硫黄制酸装置停车检修前的运行情况,针对装置存在的转化器一段床层阻力上升较快,总转化率逐年下降等问题,提出对转化器一段和四段催化剂进行筛分、调整,补充部分国产催化剂。装置性能考核结果表明,补充部分国产催化剂后,总转化率达到99.83%,应用效果较好,可在其他3套硫酸装置上推广应用。 展开更多
关键词 硫黄制酸装置 国产催化剂 转化率 尾气排放
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硫磺制酸装置省煤器腐蚀原因分析及防控措施
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作者 叶礼 《硫磷设计与粉体工程》 CAS 2024年第1期42-44,I0002,共4页
某硫磺制酸装置省煤器腐蚀泄漏的根本原因是酸雾的形成。分析了酸雾形成的机理和实际生产中产生的原因,提出了有效降低酸雾产生和防控措施的建议,以减少冷凝酸对设备的腐蚀,有效提高设备使用寿命及装置运行周期,避免因设备腐蚀泄漏造成... 某硫磺制酸装置省煤器腐蚀泄漏的根本原因是酸雾的形成。分析了酸雾形成的机理和实际生产中产生的原因,提出了有效降低酸雾产生和防控措施的建议,以减少冷凝酸对设备的腐蚀,有效提高设备使用寿命及装置运行周期,避免因设备腐蚀泄漏造成故障停车,减少经济损失。 展开更多
关键词 硫磺制酸装置 冷凝酸 省煤器 防范措施
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硫磺制酸装置的腐蚀分析和热能分析
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作者 王绪建 赵红波 《硫磷设计与粉体工程》 CAS 2024年第1期28-30,44,I0002,共5页
在“碳达峰”“碳中和”重大战略决策背景下,硫磺制酸装置既要保证安全运行,又要追求经济性极限。介绍了硫磺制酸装置的工艺流程,分析了低温烟气露点腐蚀和干吸工序浓酸腐蚀的原因,计算了装置的热能来源和去向,并有针对性地提出了降低... 在“碳达峰”“碳中和”重大战略决策背景下,硫磺制酸装置既要保证安全运行,又要追求经济性极限。介绍了硫磺制酸装置的工艺流程,分析了低温烟气露点腐蚀和干吸工序浓酸腐蚀的原因,计算了装置的热能来源和去向,并有针对性地提出了降低腐蚀和增加热能回收的建议。 展开更多
关键词 硫磺制酸 腐蚀分析 热能分析 建议
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卧式圆筒形高温过热器在硫磺制酸装置上的应用
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作者 张健 韦光铭 刘纪状 《硫磷设计与粉体工程》 CAS 2024年第1期1-3,I0001,共4页
根据传统高温过热器的结构和材质,分析了其用于硫磺制酸余热回收装置上时烟气侧容易泄露的原因。介绍了优化后卧式圆筒形高温过热器的主体结构和方变圆接管结构,应用实践证明,该高温过热器减少了应力集中点,显著提高了热应力承受能力,... 根据传统高温过热器的结构和材质,分析了其用于硫磺制酸余热回收装置上时烟气侧容易泄露的原因。介绍了优化后卧式圆筒形高温过热器的主体结构和方变圆接管结构,应用实践证明,该高温过热器减少了应力集中点,显著提高了热应力承受能力,从而解决了其烟气侧的泄露问题。 展开更多
关键词 硫磺制酸 高温过热器 结构优化 卧式圆筒形
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硫磺制酸生产中氨法脱硫的技术改进
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作者 何喜 《硫磷设计与粉体工程》 CAS 2024年第1期36-38,I0002,共4页
针对某硫磺制酸装置尾气脱硫塔存在亚硫酸铵转化率低、曝气管易损坏、排放烟气量大、SO_(2)浓度不稳定等问题,对尾气脱硫塔的加氨方式、曝气管及喷淋装置进行了改造,提高了亚硫铵转化率,改善了氨逸出和排放烟气外观,延长了曝气管的使用... 针对某硫磺制酸装置尾气脱硫塔存在亚硫酸铵转化率低、曝气管易损坏、排放烟气量大、SO_(2)浓度不稳定等问题,对尾气脱硫塔的加氨方式、曝气管及喷淋装置进行了改造,提高了亚硫铵转化率,改善了氨逸出和排放烟气外观,延长了曝气管的使用寿命,达到了降本增效、安全环保的目的。 展开更多
关键词 硫磺制酸 氨法脱硫 技术改造 加氨技术 曝气技术
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生物材料促进角膜碱烧伤修复的作用机制和应用途径
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作者 肖辉 李冬妍 +1 位作者 汲婧 王丽珍 《中国组织工程研究》 CAS 北大核心 2025年第10期2162-2170,共9页
背景:在角膜碱烧伤治疗中,传统治疗方法存在多种局限,尤其在控制炎症、预防新生血管形成和抑制角膜瘢痕化方面表现不佳。天然材料、合成材料或复合材料为治疗提供了多元化的选择,然而生物材料促进角膜碱烧伤修复的相关机制尚未形成系统... 背景:在角膜碱烧伤治疗中,传统治疗方法存在多种局限,尤其在控制炎症、预防新生血管形成和抑制角膜瘢痕化方面表现不佳。天然材料、合成材料或复合材料为治疗提供了多元化的选择,然而生物材料促进角膜碱烧伤修复的相关机制尚未形成系统深入的认识。目的:对目前生物材料促进角膜碱烧伤修复的国内外研究进行梳理,综述生物材料修复角膜碱烧伤的机制及其应用途径。方法:第一作者以“角膜,碱烧伤,羊膜,透明质酸,胶原,壳聚糖,高分子材料”“Amniotic membrane,Hyaluronic acid,Collagen,Chitosan,Polymer,Cornea,Alkali burn”为关键词在Pub Med、Web of Science、中国知网和万方文献数据库内检索,根据纳入标准和排除标准,最终纳入符合要求的76篇文献进行综述。结果与结论:(1)在角膜碱烧伤修复领域,羊膜、透明质酸、胶原、壳聚糖和可降解高分子材料等生物材料被广泛研究和应用,这些生物材料各有其特点和优缺点,在不同方面都有所突出。(2)首先,羊膜因含丰富的生物活性因子而被认为是最有前景的生物材料之一,其生物相容性良好,并且能够调节角膜炎症反应,但是存在供体短缺和易感染疾病的问题。(3)透明质酸具有良好的保湿性和生物相容性,并且能够提高角膜细胞的生存率和增加角膜透明度。(4)胶原具有良好的生物相容性和支架结构,能够促进角膜细胞的黏附和增殖,促进角膜组织结构的重建。(5)壳聚糖具有良好的生物相容性和可降解性,可作为载体用于药物递送和细胞移植。(6)可降解高分子材料具有较好的降解可控性,可为角膜碱烧伤的修复提供良好的支持和递送平台,但其稳定性和生物相容性仍需进一步研究。(7)综合来看,目前还没有一种生物材料能够完全解决角膜碱烧伤的修复问题,每种生物材料都有其特定的适用场景和局限性。(8)未来的研究方向应该是通过进一步改进生物材料的性能和结构,探索更有效的组合应用方式,以及深入了解生物材料与角膜组织的相互作用机制,以提高角膜碱烧伤的治疗效果和患者的生活质量。 展开更多
关键词 角膜 碱烧伤 生物材料 修复机制 羊膜 透明质酸 壳聚糖 高分子材料 综述
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热法磷酸生产过程多尺度模拟
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作者 伍子奇 宗凯强 翟持 《化工生产与技术》 CAS 2024年第1期24-29,I0004,共7页
从燃烧热力学、反应-传质机制及全流程综合角度,分析了工艺和结构参数对燃磷塔燃烧特性的影响,探究了黄磷燃烧的“三传一反”机理。结果表明,空气过剩系数取低了会导致燃磷塔中心温度偏高,取高了会导致能源浪费,故取中间值1.5;喷枪角度... 从燃烧热力学、反应-传质机制及全流程综合角度,分析了工艺和结构参数对燃磷塔燃烧特性的影响,探究了黄磷燃烧的“三传一反”机理。结果表明,空气过剩系数取低了会导致燃磷塔中心温度偏高,取高了会导致能源浪费,故取中间值1.5;喷枪角度的增大可以提高预热回收率,但会影响塔体温度分布,故喷枪角度为41°时较佳,喷枪个数为3时,塔内最高温度会下降,燃烧区域增大,优于双喷枪的塔型,但成本上升。该研究优化了燃磷炉热能回收效率,可为工厂内部热法磷酸优化方案提供可靠借鉴。 展开更多
关键词 热法磷酸 模拟 燃磷塔 雾化作用 热能回收
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光子治疗仪联合rh-aFGF治疗小面积深Ⅱ度烧伤创面疗效观察
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作者 王庆 张大维 徐振雷 《中国美容医学》 CAS 2024年第8期49-52,共4页
目的:探讨光子治疗仪联合重组人酸性成纤维细胞生长因子(Recombinant human acidic fibroblast growth factor,rh-aFGF)对小面积深Ⅱ度烧伤患者创面愈合、疼痛程度的影响。方法:选取2020年6月-2022年11月笔者医院收治的80例小面积深Ⅱ... 目的:探讨光子治疗仪联合重组人酸性成纤维细胞生长因子(Recombinant human acidic fibroblast growth factor,rh-aFGF)对小面积深Ⅱ度烧伤患者创面愈合、疼痛程度的影响。方法:选取2020年6月-2022年11月笔者医院收治的80例小面积深Ⅱ度烧伤患者,采用随机数字表法分为rh-aFGF组(n=40)和联合组(n=40)。rh-aFGF组给予rh-aFGF治疗,联合组给予光子治疗仪联合rh-aFGF治疗,比较两组治疗后10、15、19 d时的创面愈合率、创面肉芽生长评分及完全愈合时间;比较两组治疗后1、7、14 d时的创面疼痛数字量表(Numerical rating scale,NRS)评分;比较两组治疗后6个月时的温哥华瘢痕量表(Vancouver scar scale,VSS)评分。结果:联合组治疗后10、15、19 d创面愈合率、创面肉芽生长评分均高于rh-aFGF组,创面完全愈合时间短于rh-aFGF组(P<0.05)。两组治疗后1、7、14 d创面NRS评分均较治疗前降低,且联合组低于rh-aFGF组(P<0.05)。联合组治疗后6个月VSS评分低于rh-aFGF组(P<0.05)。结论:光子治疗仪联合rh-aFGF治疗小面积深Ⅱ度烧伤,可促进肉芽组织生长,加速创面愈合,减轻疼痛,减少瘢痕形成。 展开更多
关键词 深Ⅱ度烧伤 小面积 光子治疗仪 重组人酸性成纤维细胞生长因子
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Preparation of Ternary Lanthanide Complexes with Unsaturated Acid and 1,10-Phenanthroline, and Their Anti-Inflammatory Action 被引量:4
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作者 刘鸿 张惠珍 +1 位作者 曾伟 曾正志 《Journal of Rare Earths》 SCIE EI CAS CSCD 2004年第S1期46-50,共5页
Four ternary lanthanide complexes with unsaturated acid and 1,10-phenanthroline are prepared in methanol and characterized by elemental analysis, molar conductance, UV, IR, (()~1H) NMR and XPS. The results from this p... Four ternary lanthanide complexes with unsaturated acid and 1,10-phenanthroline are prepared in methanol and characterized by elemental analysis, molar conductance, UV, IR, (()~1H) NMR and XPS. The results from this paper show that the complexes Ln(phen)(SA)_3·2H_2O or Ln(phen)(CA)_3·H_2O (Ln=Ce(Ⅲ), Sm(Ⅲ) and Eu(Ⅲ), (phen=1,10-)phenanthroline, SA=Sorbate and CA=Cinnamate) has better anti-inflammatory effect than cerium nitrate and their gremores are steadier than cerium nitrate gremor. And there is a kind of medicament which can replace the cerium nitrate gremor completely in treating burn. 展开更多
关键词 unsaturated acid 1 10-PHENANTHROLINE ternary lanthanide complexes ANTI-INFLAMMATORY burn rare earths
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