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Issue 23, 2019
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Electrochemical mercury biosensors based on advanced nanomaterials

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Abstract

Mercury ion (Hg2+) is a typical heavy metal ion that shows strong toxicity and readily accumulates in the human body; it is a source of severe pollution in ecological systems. The detection of trace Hg2+ is an active research area for developing accurate and sensitive electrochemical biosensors. Recently, numerous novel nanomaterials have been successfully designed with remarkable advantages in Hg2+ recognition due to their strong electrocatalysis, specific surface areas, conductivities, etc. This review aims to present the latest progress in advanced nanomaterials for electrochemical Hg2+ detection. Emphasis will be given to the main detection mechanisms and nanostructure control methodology of these nanomaterials. Meanwhile, the performance of various nanomaterials-based mercury biosensors will be compared to discuss their positive effects on the detection performance of different nanostructures. This article is expected to provide inspiration for the design of novel nanomaterials to construct high-performance electrochemical mercury biosensors.

Graphical abstract: Electrochemical mercury biosensors based on advanced nanomaterials

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Article information


Submitted
01 Mar 2019
Accepted
09 May 2019
First published
11 May 2019

J. Mater. Chem. B, 2019,7, 3620-3632
Article type
Review Article

Electrochemical mercury biosensors based on advanced nanomaterials

T. Liu, Z. Chu and W. Jin, J. Mater. Chem. B, 2019, 7, 3620
DOI: 10.1039/C9TB00418A

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