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Issue 5, 2013
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Self-powered herbicide biosensor utilizing thylakoid membranes

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Abstract

A self-powered biosensor has been developed for the detection of herbicides in water. It consists of a bio-solar cell incorporating thylakoid membranes at the bioanode for direct photoelectrocatalysis with an air-breathing platinum cathode. The biosolar cell produces power in the presence of light, but inhibition of photosystems of the thylakoids by herbicides leads to a decrease in current output. This current decrease can be used to determine herbicide concentration. This sensor was able to detect several commercial herbicides, including: atrazine, bromacil, and diuron with a linear response up to concentrations of ∼15 μg L−1 and limits of detection (LOD) below 0.5 μg L−1, which are below the EPA limits.

Graphical abstract: Self-powered herbicide biosensor utilizing thylakoid membranes

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Publication details

The article was received on 03 Dec 2012, accepted on 12 Jan 2013 and first published on 17 Jan 2013


Article type: Paper
DOI: 10.1039/C3AY26488B
Citation: Anal. Methods, 2013,5, 1140-1144
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    Self-powered herbicide biosensor utilizing thylakoid membranes

    M. Rasmussen and S. D. Minteer, Anal. Methods, 2013, 5, 1140
    DOI: 10.1039/C3AY26488B

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