材料科学
电导率
纳米技术
胶体金
电阻率和电导率
纳米颗粒
灵敏度(控制系统)
等离子体子
光电子学
电子工程
电气工程
化学
工程类
物理化学
作者
Jing Hu,Shixuan Su,Ting Yu,Yunlei Xianyu
标识
DOI:10.1002/admt.202101597
摘要
Abstract Developing a versatile sensing toolkit with high sensitivity may revolutionize current techniques for analytical applications. This work reports a sensing strategy through the electrical conductivity of gold nanoparticles (AuNPs). By modulating the concentration, aggregation, and surface ligand of AuNPs, a versatile analytical platform for highly sensitive detection based on the electrical conductivity is outlined. The difference in concentration, aggregation, and surface ligand enables a response in the conductivity of AuNPs, offering a great platform for developing AuNPs‐implemented assays using the conductivity as the signal readout. Compared with the plasmonic signal readout of AuNPs, this conductivity‐based sensing method has advantages in high sensitivity, low cost, and simple operation, showing great potential as a powerful technique for versatile applications.
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