Application of Nanoparticles in Electrochemical Sensors and Biosensors

Electroanalysis - Tập 18 Số 4 - Trang 319-326 - 2006
Xiliang Luo1, Aoife Morrin1, Anthony J. Killard1, Malcolm R. Smyth1
1School of Chemical Sciences, National Centre for Sensor Research, Dublin City University, Dublin 9, Ireland

Tóm tắt

AbstractThe unique chemical and physical properties of nanoparticles make them extremely suitable for designing new and improved sensing devices, especially electrochemical sensors and biosensors. Many kinds of nanoparticles, such as metal, oxide and semiconductor nanoparticles have been used for constructing electrochemical sensors and biosensors, and these nanoparticles play different roles in different sensing systems. The important functions provided by nanoparticles include the immobilization of biomolecules, the catalysis of electrochemical reactions, the enhancement of electron transfer between electrode surfaces and proteins, labeling of biomolecules and even acting as reactant. This minireview addresses recent advances in nanoparticle‐based electrochemical sensors and biosensors, and summarizes the main functions of nanoparticles in these sensor systems.

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