摘要
采用反相微乳液法制备三元合金纳米粒子Au2Pt1Cu1无酶葡萄糖传感器。通过使用透射电镜对Au2Pt1Cu1纳米颗粒的形貌进行表征,并采用循环伏安法和时间电流曲线法在碱性溶液中测试Au2Pt1Cu1无酶葡萄糖传感器的电化学性能。结果表明,采用一步还原法在25℃制备的Au2Pt1Cu1呈现高密度的表面缺陷。制备的Au2Pt1Cu1无酶葡萄糖传感器对葡萄糖表现出较好的响应:线性检测范围宽(1 mmol/L^8 mmol/L)、响应时间快、灵敏度为116μA/(mmol/L cm2)、检出限为0.36 mmol/L、良好的选择性等特点。
The non-enzymatic glucose sensor of Au2Pt1Cu1 ternary alloy nanoparticles was prepared by inverse microemulsion method.The morphology of Au2Pt1Cu1 nanoparticles was characterized by transmission electron microscopy(TEM),and the electrochemical properties of Au2Pt1Cu1 non-enzymatic glucose sensor were tested in alkaline solution by cyclic voltammetry and current-time curve.The results showed that the Au2Pt1Cu1 prepared at 25℃by one-step reduction method presented a high density surface defect.The prepared Au2Pt1Cu1 enzyme-free glucose sensor displaied a enhanced response to glucose:a wide range of linear detection(1 mmol/L to 8 mmol/L),fast response time,sensitivity of 116μA/(mmol/L cm2),detection limit of 0.36 mmol/L and good selectivity.
作者
张晓月
梁新义
ZHANG Xiao-yue;LIANG Xin-yi(Tianjin Key Laboratory of Food and Biotechnology,Tianjin University of Commerce,Tianjin 300134,China;Department of Applied Chemistry,College of Biotechnology and Food Science,Tianjin University of Commerce,Tianjin 300134,China)
出处
《食品研究与开发》
CAS
北大核心
2019年第24期80-85,共6页
Food Research and Development
基金
国家自然科学基金（31772019）
天津市自然科学基金重点项目（10JCZDJC23600)
关键词
三元合金
纳米粒子
葡萄糖
传感器
表面缺陷
反向微乳液
ternary alloy
nanoparticles
glucose
sensor
surface defect
inverse microemulsion method
