Graphene Oxide Amplified Electrogenerated Chemiluminescence of Quantum Dots and Its Selective Sensing for Glutathione from Thiol-Containing Compounds | |
Wang, Ying ; Lu, Jin ; Tang, Longhua ; Chang, Haixin ; Li, Jinghong | |
2010-10-12 ; 2010-10-12 | |
关键词 | GRAPHITE OXIDE ELECTROCHEMILUMINESCENCE SENSORS DISULFIDES CYSTEINE SYSTEM NANOPARTICLES NANOCRYSTALS HOMOCYSTEINE ELECTRODES Chemistry, Analytical |
中文摘要 | Here we report a graphene oxide amplified electrogenerated chemiluminescence (ECL) of quantum dots (QDs) platform and its efficient selective sensing for antioxidants. Graphene oxide facilitated the CdTe QDs(center dot+) production and triggered O-2(center dot-) generation. Then, a high yield of CdTe QDs(star) was formed due to the combination of CdTe QDs(center dot+) and O-2(center dot-), leading to an similar to 5-fold ECL amplification. Glutathione is the most abundant cellular thiol-containing peptide, but its selective sensing is an intractable issue in analytical and biochemical communities because its detection is interfered with by some thiol-containing compounds. This platform showed a detection limit of 8.3 mu M (S/N = 3) for glutathione and a selective detection linear dependence from 24 to 214 mu M in the presence of 120 mu M cysteine and glutathione disulfide. This platform was also successfully used for real sample (eye drug containing glutathione) detection without any pretreatment with a wide linear range from 0.04 to 0.29 mu g mL(-1). |
语种 | 英语 ; 英语 |
出版者 | AMER CHEMICAL SOC ; WASHINGTON ; 1155 16TH ST, NW, WASHINGTON, DC 20036 USA |
内容类型 | 期刊论文 |
源URL | [http://hdl.handle.net/123456789/80909] ![]() |
专题 | 清华大学 |
推荐引用方式 GB/T 7714 | Wang, Ying,Lu, Jin,Tang, Longhua,et al. Graphene Oxide Amplified Electrogenerated Chemiluminescence of Quantum Dots and Its Selective Sensing for Glutathione from Thiol-Containing Compounds[J],2010, 2010. |
APA | Wang, Ying,Lu, Jin,Tang, Longhua,Chang, Haixin,&Li, Jinghong.(2010).Graphene Oxide Amplified Electrogenerated Chemiluminescence of Quantum Dots and Its Selective Sensing for Glutathione from Thiol-Containing Compounds.. |
MLA | Wang, Ying,et al."Graphene Oxide Amplified Electrogenerated Chemiluminescence of Quantum Dots and Its Selective Sensing for Glutathione from Thiol-Containing Compounds".(2010). |
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