Jump to main content
Jump to site search

Issue 86, 2014
Previous Article Next Article

Inkpen-printed reusable colorimetric sensors for the detection of Hg(II)

Author affiliations

Abstract

An inkpen-based reversible biodegradable sensor (IRBS) has been developed for the detection of mercuric ions (Hg2+). The colour response can be tuned to allow detection with the naked eye based on Hg2+-induced opening of the rhodamine spirocycle, leading to an increase in fluorescence and other colour changes. After dipping in water, the colour change in the IRBS paper can be quantified by visual comparison with standard images of IRBS papers, allowing the concentration of Hg2+ to be determined over the concentration range 4.0 × 10−8 M to 1.0 × 10−6 M. Reusability has been established by repeatedly dipping and rinsing the paper in aqueous Hg2+ and EDTA solutions. This approach provides a sensitive and accurate method for the estimation of Hg2+ in environmental and biological applications.

Graphical abstract: Inkpen-printed reusable colorimetric sensors for the detection of Hg(ii)

Back to tab navigation

Supplementary files

Publication details

The article was received on 24 Jul 2014, accepted on 03 Sep 2014 and first published on 03 Sep 2014


Article type: Paper
DOI: 10.1039/C4RA07578A
RSC Adv., 2014,4, 46145-46151

  •   Request permissions

    Inkpen-printed reusable colorimetric sensors for the detection of Hg(II)

    C. Kaewtong, Y. Uppa, M. Srisa-ard, B. Pulpoka and T. Tuntulani, RSC Adv., 2014, 4, 46145
    DOI: 10.1039/C4RA07578A

Search articles by author

Spotlight

Advertisements