Enzymatic determination of uric acid using water-soluble CuInS/ZnS quantum dots as a fluorescent probe
文献类型： 外文期刊
第一作者： Zhang, Fangmei
作者： Zhang, Fangmei;Ma, Pinyi;Deng, Xinyu;Sun, Ying;Wang, Xinghua;Song, Daqian;Zhang, Fangmei
作者机构：
关键词： Microwave-based synthesis; Nanoparticle synthesis; Fluorescent probe; Uric acid determination; Human urine and serum
期刊名称：MICROCHIMICA ACTA （ 影响因子：5.833； 五年影响因子：5.357 ）
ISSN： 0026-3672
年卷期： 2018 年 185 卷 11 期
页码：
收录情况： SCI
摘要： Glutathione-capped water-soluble CuInS/ZnS quantum dots (QDs) were prepared by a microwave-assisted method. Their fluorescence, with excitation/emission peaks at 380/570 nm, is found to be quenched by hydrogen peroxide (H2O2) that is produced by the ukase catalyzed oxidation of uric acid (UA) and oxygen. The findings are used in a quenchometric method for the determination of UA. The effects of different ligands on the QDs, of pH value, buffers, enzyme ratio and reaction time were optimized. The detection limit for UA is 50 nM which is lower than other QD-based method, and the detection ranges extends from 0.25-4.0 mu M. The assay is simple and sensitive, and no further modification of the QDs is required.
分类号：
- 相关文献
作者其他论文 更多>>
-
Biochar reversed antibiotic resistance genes spread in biodegradable microplastics and Cu co-contaminated soil by lowering Cu bio-availability and regulating denitrification process
作者：Wang, Zhenyu;Wang, Xuejiang;Xia, Siqing;Zhao, Jianfu;Wang, Zhenyu;Wang, Xuejiang;Xia, Siqing;Zhao, Jianfu;Sun, Ying
关键词：Soil remediation; Cu immobilization; PBAT microplastics; Nitrogen conversion; ARGs propagation; Microbial community
-
Red light-emitting diode irradiation delays the senescence of postharvest pakchoi through promoting antioxidant capacity and regulating ascorbate-glutathione cycle
作者：Guo, Feng;Sun, Ying;Hu, Huali;Zhou, Hongsheng;Zhang, Yingtong;Liu, Xuesong;Ling, Jun;Luo, Shufen;Li, Pengxia;Hu, Huali;Zhou, Hongsheng;Zhang, Yingtong;Liu, Xuesong;Ling, Jun;Luo, Shufen;Li, Pengxia
关键词：Pakchoi; Light; Ascorbic acid; Glutathione oxidative damage; Quality
-
Adsorption behavior of commercial biodegradable plastics towards pollutants during the biodegradation process: Taking starch-based biodegradable microplastics, oxytetracycline and Cu (II) as examples
作者：Chen, Liuyu;Sun, Ying;Wang, Xuejiang;Xia, Siqing;Zhao, Jianfu;Chen, Liuyu;Sun, Ying;Wang, Xuejiang;Xia, Siqing;Zhao, Jianfu;Sun, Ying
关键词：Starch-based blended biodegradable microplastics; Cu(II); OTC; Biodegradation; Microbial colonization; Adsorption
-
Molecular Characterization and Functional Analysis of Odorant-Binding Proteins in Ectropis grisescens
作者：Zhang, Fangmei;Sun, Haohan;Geng, Shubao;Guo, Shibao;Zhou, Zhou;Shi, Hongzhong;Zhou, Xuguo;Li, Xiangrui
关键词：
Ectropis grisescens ; odorant-binding protein; qRT-PCR; binding ability -
Adsorption behavior and mechanism of cadmium, copper, and lead on polylactic acid microplastics exposed to ultraviolet light
作者：Feng, Fang;He, Xue;Huang, Jia;Liu, Guiming;Rong, Sashuang;Yan, Hongyuan;Liu, Wei;Wang, Shutao;Wang, Xinghua;Su, Shiming;Han, Bing
关键词：Polylactic acid; UV aging; Adsorption; Mechanism
-
Transcriptome Analysis Reveals Metabolic Pathways and Key Genes Involved in Oleic Acid Formation of Sunflower (Helianthus annuus L.)
作者：Mu, Yingnan;Sun, Ying;Wu, Yang;Yi, Liuxi;Zhang, Shaoying;Mu, Yingnan;Yu, Haifeng
关键词：fatty acids; molecular mechanism; qRT-PCR; RNA-Seq; sunflower
-
Research on Multi-Scale Vector Road-Matching Model Based on ISOD Descriptor
作者：Yan, Yu;Sun, Ying;Lu, Yuefeng;Wang, Shaobo;Lu, Yuefeng;Lu, Miao;Hu, Yulong;Lu, Miao
关键词：spatial relationships; ISOD descriptor; included angle chain; cambervariance; multi-scale road networks
