广州化学2024，Vol.49Issue(1)：33-37,5.DOI:10.16560/j.cnki.gzhx.20240115
基于Au-Ag合金的EC-SERS光谱监测多巴胺氧化还原反应
Probing Dopamine Redox Reactions Based on Au-Ag Alloys and EC-SERS
摘要
Abstract
The citrate reduction method was used to synthesize Au-Ag nanoparticles of uniform size and shape,followed by the preparation of active substrates with surface-enhanced Raman scattering(SERS)response by immobilizing Au-Ag nanoparticles on ITO glass surfaces using the coffee ring effect.Using it as a working electrode for EC-SERS,we examined the spectral properties of dopamine(phenol)and dopamine(benzoquinone)on the Au-Ag surface by a combined electrochemical and SERS methods and found that H2O2 and GSH could be used to modulate their SERS spectral intensities at 1270,1335 and 1455 cm-1.Finally,the potential-dependent changes in the redox of dopamine(DA)at the electrode were investigated by the constant potential method,providing a new basis for the study of its redox properties.关键词
电化学-表面增强拉曼散射/多巴胺/氧化还原/表面增强拉曼散射Key words
electrochemical surface-enhanced raman scattering/dopamine/redox/surface-enhanced raman scattering分类
化学化工引用本文复制引用
王康,刘官,张磊..基于Au-Ag合金的EC-SERS光谱监测多巴胺氧化还原反应[J].广州化学,2024,49(1):33-37,5.基金项目
江苏省自然科学基金面上项目(BK20211271) （BK20211271）
