期刊
TALANTA
卷 173, 期 -, 页码 36-43出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.talanta.2017.05.061
关键词
E-GQDs; Horse radish peroxidase (HRP); Glucose oxidase (GOx); Colorimetric; Peroxidase mimetic
资金
- UGC [RJNF-JRF-SC-252]
- SERB-NPDF [PDF/2016/000243]
In present study, we highlight one-step electrochemical synthesis of nearly uniform size (similar to 5 nm) of graphene quantum dots (E-GQDs) from wood charcoal and their further application as a peroxidase enzyme mimetic. The structural and optical properties of as-synthesized E-GQDs were probed by TEM, AFM, and spectroscopic techniques. Peroxidase enzyme mimetic potential of E-GQDs were examined for colorimetric detection of H2O2 and glucose. E-GQDs allowed a rapid and sensitive detection of glucose with a detection limit of 0.006 mM for dynamic response range of 0.01-0.6 mM. The calculated higher value of V-max (7.2 x 10-7 M s-1.) along with lower K-m (0.012 mM) corroborate enhanced the peroxidase-like activity of E-GQDs. Study introduces a cheap and widely available raw material for the electrochemical synthesis of graphene quantum dots with commendable enzyme mimetic activity which may have a huge impact in developing calorimetric bioanalysis systems.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据