Biosensors· 2015Q1· Review
Modified Electrodes Used for Electrochemical Detection of Metal Ions in Environmental Analysis
- 343citations
- Q1SCImago
- 2015year
Short summary
This review details label-free electrochemical sensor strategies for detecting heavy metals (Pb, Cd, Hg, As) in environmental samples, focusing on modified electrodes.
AI-generated from the title and abstract; the full text is not read.
Key points
- Review covers label-free electrochemical sensor strategies for heavy metal detection.
- Focuses on various electrode modification techniques: nanoparticles, nanostructures, boron-doped diamond, conducting polymers, and biomolecules.
- Discusses specific heavy metals of environmental concern: lead, cadmium, mercury, and arsenic.
- Categorizes approaches into stripping voltammetry, chemically modified electrodes, and bio-modified electrodes.
AI-generated from the title and abstract; the full text is not read.
Abstract
Heavy metal pollution is one of the most serious environmental problems, and regulations are becoming stricter. Many efforts have been made to develop sensors for monitoring heavy metals in the environment. This review aims at presenting the different label-free strategies used to develop electrochemical sensors for the detection of heavy metals such as lead, cadmium, mercury, arsenic etc. The first part of this review will be dedicated to stripping voltammetry techniques, on unmodified electrodes (mercury, bismuth or noble metals in the bulk form), or electrodes modified at their surface by nanoparticles, nanostructures (CNT, graphene) or other innovative materials such as boron-doped diamond. The second part will be dedicated to chemically modified electrodes especially those with conducting polymers. The last part of this review will focus on bio-modified electrodes. Special attention will be paid to strategies using biomolecules (DNA, peptide or proteins), enzymes or whole cells.
The authors' abstract, as published at the source. Biosensors, 2015 · DOI ↗
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Field: Electrochemistry
ElectrochemistryChemistry