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Issue 15, 2017
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Pyridoxal conjugated gold nanoparticles for distinct colorimetric detection of chromium(III) and iodide ions in biological and environmental fluids

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Abstract

We developed pyridoxal conjugated gold nanoparticles (CAPy-AuNPs) for the selective colorimetric detection of Cr3+ and iodide ions in an aqueous medium. The CAPy decorated AuNPs showed selective aggregation in the presence of Cr3+ and I ions, resulting in a distinct color change from red to blue, which was in response to the surface plasmon resonance absorption of dispersed or aggregated nanoparticles. An assay was used to detect the concentrations of Cr3+ and I in real samples, such as liquid milk, milk power, river and tap water, and urine, and the recoveries ranged from 90 to 123.6%, indicating that the method could be used for extensive practical applications in complicated environmental and biological samples.

Graphical abstract: Pyridoxal conjugated gold nanoparticles for distinct colorimetric detection of chromium(iii) and iodide ions in biological and environmental fluids

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Publication details

The article was received on 29 Jan 2017, accepted on 07 Jun 2017 and first published on 08 Jun 2017


Article type: Paper
DOI: 10.1039/C7NJ00350A
Citation: New J. Chem., 2017,41, 7339-7346
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    Pyridoxal conjugated gold nanoparticles for distinct colorimetric detection of chromium(III) and iodide ions in biological and environmental fluids

    S. Bothra, R. Kumar and S. K. Sahoo, New J. Chem., 2017, 41, 7339
    DOI: 10.1039/C7NJ00350A

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