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Electrochemically reduced graphene oxide modified with cupper and phenanthroline derivatives for cysteine detection and its applications to sensor-electrodes
Electrochemically reduced graphene oxide modified with cupper and phenanthroline derivatives for cysteine detection and its applications to sensor-electrodes
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机译：用带有吸力的电化学还原石墨烯氧化物，用于半胱氨酸检测及其对传感器电极的应用
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摘要
The present invention relates to a graphene oxide complex for detecting an electrochemically reduced cysteine modified with copper and phenanthroline derivatives and its application to a sensor electrode, and more particularly, to Cu 2+ and 1,10-phenanthroline- 5,6-dione-modified copper-phen-dione@electrically reduced graphene oxide complex (hereinafter, Cu 2+ -phen-dione@ERGO) can effectively detect L- cysteine, which is difficult to detect from urine samples. As a redox probe, the free carbon electrode coated with the copper-phen-dione@electrically reduced graphene oxide complex has a wide analysis range of 10 to 32,000 uM, excellent sensitivity of 0.0009 uA/uM, and 2.0 uM It has a minimum detection concentration of (S/N = 3) or less, and has a high reproducibility of 97% or more even during analysis without reprocessing, so it can be usefully used as a sensor electrode material for cysteine detection.
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