Dawei Yan , Xiaoxia Zhou , Xiaoqing Jia , Shige Wang
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引用次数: 0
Abstract
Dopamine (DA), as a key neurotransmitter, is correlated with neurological disorders, including Parkinson's disease and schizophrenia. In this work, we presented an Ag/ZIF-8-based photoelectrochemical (PEC) biosensor that significantly enhanced DA detection performance. The synergistic effect between Ag nanoparticles (NPs) and ZIF-8 not only facilitates rapid electron transport but also leverages the localized surface plasmon resonance (LSPR) effect of Ag NPs. Under light illumination, this unique PEC sensor boosts DA detection sensitivity by 3.54-fold compared to conventional electrochemical methods. Furthermore, the biosensor demonstrates super performance, including an ultra-wide linear range (0.1–400 μM), high selectivity (0.31748 μA μM−1), a low detection limit (18 nM, S/N = 3), outstanding anti-interference capability, and remarkable stability (>98 % signal retention after 30 days). This work a new strategy for the development of efficient and stable biomolecular photoelectrochemical sensing platforms, and has significant application potential in the fields of neurotransmitter monitoring and disease diagnosis.
期刊介绍:
The Microchemical Journal is a peer reviewed journal devoted to all aspects and phases of analytical chemistry and chemical analysis. The Microchemical Journal publishes articles which are at the forefront of modern analytical chemistry and cover innovations in the techniques to the finest possible limits. This includes fundamental aspects, instrumentation, new developments, innovative and novel methods and applications including environmental and clinical field.
Traditional classical analytical methods such as spectrophotometry and titrimetry as well as established instrumentation methods such as flame and graphite furnace atomic absorption spectrometry, gas chromatography, and modified glassy or carbon electrode electrochemical methods will be considered, provided they show significant improvements and novelty compared to the established methods.