Issue 6, 2015

An ultrasensitive colorimetric sensor for efficient detection of Hg2+ at physiological pH

Abstract

The estimation of Hg2+ in a buffer system (Tris buffer; pH 7.4) has been performed using a novel, enzyme-based, indirect detection method with the aid of non-functionalized AgNPs. The designed system has a good linear correlation (R2 = 0.9759) in the range of 1 to 10 × 10−12 M. The probe was shown to possess an extremely low limit of detection of 1.304 × 10−12 M, which is the lowest reported for the detection of Hg2+ at physiological pH (7.4). The probe was found to have good recovery rates when tested with Simulated Body Fluids (SBFs).

Graphical abstract: An ultrasensitive colorimetric sensor for efficient detection of Hg2+ at physiological pH

Supplementary files

Article information

Article type
Communication
Submitted
24 Jan 2015
Accepted
12 Feb 2015
First published
12 Feb 2015

Anal. Methods, 2015,7, 2268-2272

An ultrasensitive colorimetric sensor for efficient detection of Hg2+ at physiological pH

D. Nanda Kumar, A. Rajeshwari, S. A. Alex, N. Chandrasekaran and A. Mukherjee, Anal. Methods, 2015, 7, 2268 DOI: 10.1039/C5AY00212E

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