Highly anti-interference electrocatalytic sensing for dopamine with nitrogen-doped graphdiyne directly in biofluids

Min Cui, Peicheng Xin,Zhongmei Che,Min Zou,Mingrui Zhang,Xiaofeng Sun,Yanan Yuan,Zihan Zou,Guangqiang Lv,Shuai Wang,Wei Hu

Chemical Engineering Journal（2023）

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摘要

•An anti-interference electrocatalytic sensor with N-GDY for DA was demonstrated.•The sp-N interactive sites for DA molecules were explored by DFT calculations.•Such electrocatalytic sensor achieved direct DA detections in complex biofluids.•Interactions between DA molecules and sp-N sites enhanced selectivity.•Sensitivity was boosted due to improved interfacial charge transfer of N-GDY.

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关键词

Electrocatalytic sensor,Density functional theory calculations,Dopamine detection,Biofluids,Graphdiyne,Nitrogen dopant

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