[Objective] This study aimed to compare the detection results of antibodies against infectious bursal disease virus with test strips and agar gel immunodiffusion method. [Method] Antibodies against infectious bursal d...[Objective] This study aimed to compare the detection results of antibodies against infectious bursal disease virus with test strips and agar gel immunodiffusion method. [Method] Antibodies against infectious bursal disease virus in chicken serum were detected using test strips developed in our laboratory, and the results were comparad^with that using traditional agar diffusion method. [Result] The comparative study of the two methods showed that the sensitivity of test strips was eight times over agar gel immunodiffusion; test strips showed higher detection rate in the deter- mination test of 216 clinical samples, with high specificity, easy preservation, and simple and rapid operation, thereby being more suitable for the monitoring of clinical antibodies. [Conclusion] Test strips could replace the existing serological methods, having great promotion and application value in antibody monitoring.展开更多
With the development of the international trade and agricultural science and technology, especially after the execution of the rules on protection of new plant varieties, considerable emphasis has been placed on varie...With the development of the international trade and agricultural science and technology, especially after the execution of the rules on protection of new plant varieties, considerable emphasis has been placed on variety identification. Many evidences have suggested that gel electrophoresis have great influence on this area. This paper reviewed study status of various gel electrophoresis, including development of the meth-展开更多
To solve the problems of high Cr^(6+),Cr^(3+),SO_(4)^(2-)and H+concentrations,pollution and processing costs associated with agate dyeing industrial drainage,we prepared an immobilized gel mixture for the treatment of...To solve the problems of high Cr^(6+),Cr^(3+),SO_(4)^(2-)and H+concentrations,pollution and processing costs associated with agate dyeing industrial drainage,we prepared an immobilized gel mixture for the treatment of such drainage on the basis of microbial immobilization technology.The immobilized gel mixture was composed of sulfate-reducing bacteria(SRB),corn cob,and nano-Fe_(3)O_(4)(nFe_(3)O_(4)).We used a single-factor experiment to determine the optimal dose of each matrix component.We analyzed the mechanism underlying the treatment of agate dyeing wastewater with an immobilized gel mixture by X-ray diffraction and scanning electron microscopy detection.The results of the single-factor test showed that the best treatment was obtained under the following conditions for each matrix component:SRB mass percentage of 30%,nFe_(3)O_(4) dose of 3%,and corn cob mesh size of 100 and dose of 3%.On this basis,we conducted an L9(34)orthogonal experiment to determine the optimal proportion of each matrix component.The results showed that the best treatment was obtained when the gel mixture met the following conditions:SRB mass percentage of 40%,nFe_(3)O_(4) dose of 4%,and corn cob dose of 1%and mesh size of 100.Accordingly,the SO_(4)^(2-),Cr^(6+)and Cr^(3+)removal rates from the agate dyeing drainage were 70.54%,84.75%,and 73.80%,respectively;the total Fe and chemical oxygen demand releases were 1.086 mg·L^(-1)and 1104 mg·L^(-1),respectively;and the pH was 6.27.The gel mixture had the best treatment effect on agate dyeing wastewater under this composition ratio.展开更多
Background:To investigate the 1-time success rate of probing alone and nasolacrimal duct probing combined with nasolacrimal injection of levofloxacin ophthalmic gel on congenital nasolacrimal duct obstruction(CNLDO)in...Background:To investigate the 1-time success rate of probing alone and nasolacrimal duct probing combined with nasolacrimal injection of levofloxacin ophthalmic gel on congenital nasolacrimal duct obstruction(CNLDO)in young children.Methods:A retrospective case series was performed on 494 cases(647 eyes)of 3–12 month-old children with CNLDO between July 2014 and July 2015.Material obtained from the lacrimal sac was cultured to isolate infectious agents.Susceptibility testing was done.Children from 3–12 months of age who were found to be sensitive to Levofloxacin(n=493 eyes)were separated into two groups:3–6 months of age(276 eyes)and 7–12 months of age(217 eyes).Each of the groups were then randomized into group A(138 eyes of3–6 months of age;102 eyes of 7–12 months of age)and group B(138 eyes of 3–6 months of age;115 eyes of7–12 months of age).Children in group A underwent nasolacrimal duct probing alone;those in group B underwent nasolacrimal duct probing plus nasolacrimal duct injection of levofloxacin and the efficacy of probing was evaluated.Results:The average detection rate of pathogenic bacteria in dacryocystitis was 75.1%,and Staphylococcus aureus was found to be the main pathogenic bacteria(42.59%,106 cases).Among children from 7–12 months of age,the 1-time success rate of nasolacrimal duct probing alone was 88.24%and the 1-time success rate of probing combined with nasolacrimal duct injection of levofloxacin ophthalmic gel was 96.52%(statistical significance,P=0.02<0.05).Conclusions:Most pathogenic bacteria(96.81%)were sensitive to levofloxacin.Nasolacrimal duct probing combined with nasolacrimal duct injection of levofloxacin may improve the success rate of probing in children older than 6 months of age.展开更多
文摘[Objective] This study aimed to compare the detection results of antibodies against infectious bursal disease virus with test strips and agar gel immunodiffusion method. [Method] Antibodies against infectious bursal disease virus in chicken serum were detected using test strips developed in our laboratory, and the results were comparad^with that using traditional agar diffusion method. [Result] The comparative study of the two methods showed that the sensitivity of test strips was eight times over agar gel immunodiffusion; test strips showed higher detection rate in the deter- mination test of 216 clinical samples, with high specificity, easy preservation, and simple and rapid operation, thereby being more suitable for the monitoring of clinical antibodies. [Conclusion] Test strips could replace the existing serological methods, having great promotion and application value in antibody monitoring.
基金supported by NSFC(39970444)the National“973”Fundamental Research Program(G1998010202).
文摘With the development of the international trade and agricultural science and technology, especially after the execution of the rules on protection of new plant varieties, considerable emphasis has been placed on variety identification. Many evidences have suggested that gel electrophoresis have great influence on this area. This paper reviewed study status of various gel electrophoresis, including development of the meth-
基金funded by the National Natural Science Foundation of China(41672247,41102157,51304114)Liaoning Provincial Natural Science Foundation of China(2015020619)+1 种基金and Liaoning Provincial Department of Education(LJYL031,LJ2017FAL016)the project was supported by the discipline innovation team of Liaoning Technical University(LNTU20TD-21).
文摘To solve the problems of high Cr^(6+),Cr^(3+),SO_(4)^(2-)and H+concentrations,pollution and processing costs associated with agate dyeing industrial drainage,we prepared an immobilized gel mixture for the treatment of such drainage on the basis of microbial immobilization technology.The immobilized gel mixture was composed of sulfate-reducing bacteria(SRB),corn cob,and nano-Fe_(3)O_(4)(nFe_(3)O_(4)).We used a single-factor experiment to determine the optimal dose of each matrix component.We analyzed the mechanism underlying the treatment of agate dyeing wastewater with an immobilized gel mixture by X-ray diffraction and scanning electron microscopy detection.The results of the single-factor test showed that the best treatment was obtained under the following conditions for each matrix component:SRB mass percentage of 30%,nFe_(3)O_(4) dose of 3%,and corn cob mesh size of 100 and dose of 3%.On this basis,we conducted an L9(34)orthogonal experiment to determine the optimal proportion of each matrix component.The results showed that the best treatment was obtained when the gel mixture met the following conditions:SRB mass percentage of 40%,nFe_(3)O_(4) dose of 4%,and corn cob dose of 1%and mesh size of 100.Accordingly,the SO_(4)^(2-),Cr^(6+)and Cr^(3+)removal rates from the agate dyeing drainage were 70.54%,84.75%,and 73.80%,respectively;the total Fe and chemical oxygen demand releases were 1.086 mg·L^(-1)and 1104 mg·L^(-1),respectively;and the pH was 6.27.The gel mixture had the best treatment effect on agate dyeing wastewater under this composition ratio.
基金support from Foshan medical science and technology research project(No.201208064)Foshan science and technology development special fund project(No.2012AA100201)
文摘Background:To investigate the 1-time success rate of probing alone and nasolacrimal duct probing combined with nasolacrimal injection of levofloxacin ophthalmic gel on congenital nasolacrimal duct obstruction(CNLDO)in young children.Methods:A retrospective case series was performed on 494 cases(647 eyes)of 3–12 month-old children with CNLDO between July 2014 and July 2015.Material obtained from the lacrimal sac was cultured to isolate infectious agents.Susceptibility testing was done.Children from 3–12 months of age who were found to be sensitive to Levofloxacin(n=493 eyes)were separated into two groups:3–6 months of age(276 eyes)and 7–12 months of age(217 eyes).Each of the groups were then randomized into group A(138 eyes of3–6 months of age;102 eyes of 7–12 months of age)and group B(138 eyes of 3–6 months of age;115 eyes of7–12 months of age).Children in group A underwent nasolacrimal duct probing alone;those in group B underwent nasolacrimal duct probing plus nasolacrimal duct injection of levofloxacin and the efficacy of probing was evaluated.Results:The average detection rate of pathogenic bacteria in dacryocystitis was 75.1%,and Staphylococcus aureus was found to be the main pathogenic bacteria(42.59%,106 cases).Among children from 7–12 months of age,the 1-time success rate of nasolacrimal duct probing alone was 88.24%and the 1-time success rate of probing combined with nasolacrimal duct injection of levofloxacin ophthalmic gel was 96.52%(statistical significance,P=0.02<0.05).Conclusions:Most pathogenic bacteria(96.81%)were sensitive to levofloxacin.Nasolacrimal duct probing combined with nasolacrimal duct injection of levofloxacin may improve the success rate of probing in children older than 6 months of age.
文摘该研究通过单因素试验探究不同测试条件(压缩比、测试速度、停留时间)对麻糬凝胶质构特性参数测定结果的影响,采用全质构分析(texture profile analysis,TPA)测试模式得到硬度、黏性、回复性、弹性、咀嚼性、胶着性和内聚性指标,并采用变异系数(coefficient of variation,CV)和方差分析(analysis of variance,ANOVA)方法对质构参数测定结果进行分析,结果表明:压缩比对硬度、黏性、弹性、咀嚼性、胶着性、内聚性和回复性有显著性影响;测试速度对黏性、硬度、弹性、咀嚼性、胶着性、内聚性及回复性均有显著性影响;停留时间对回复性、咀嚼性、胶着性、内聚性和弹性有显著性影响。通过变异系数对比分析选择适宜的质构测试条件为压缩比40%、测试速度1.0 mm/s、停留时间3 s;并对单因素优化得到的测定条件进行重复试验验证,发现质构测定结果的变异系数均小于5%,说明该测试条件下测定结果稳定性较好,可较好地反映麻糬凝胶质地特征,适用于麻糬凝胶类样品的质构测试。
