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

Abstract

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

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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, Accepted Manuscript
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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, Accepted Manuscript , DOI: 10.1039/C7NJ00350A

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