Issue 103, 2014

A paper based microfluidic device for the detection of arsenic using a gold nanosensor

Abstract

A paper based microfluidic device is fabricated that can rapidly detect very low concentrations of As3+ ions using a gold nanosensor, Au–TA–TG. This simple but efficient system develops a visible bluish-black colour precipitate due to the formation of nanoparticle aggregates through transverse diffusive mixing of Au–TA–TG with As3+ ions on a paper substrate. The approach is extremely selective for arsenic with a detection limit of 1.0 ppb, which is lower than the WHO's reference standard for drinking water.

Graphical abstract: A paper based microfluidic device for the detection of arsenic using a gold nanosensor

Supplementary files

Article information

Article type
Communication
Submitted
26 Aug 2014
Accepted
31 Oct 2014
First published
31 Oct 2014

RSC Adv., 2014,4, 59558-59561

Author version available

A paper based microfluidic device for the detection of arsenic using a gold nanosensor

P. Nath, R. K. Arun and N. Chanda, RSC Adv., 2014, 4, 59558 DOI: 10.1039/C4RA12946F

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