Document Type

Journal Article

Department/Unit

Department of Chemistry

Title

Label-free sensing of pH and silver nanoparticles using an “OR” logic gate

Language

English

Abstract

Many natural phenomena are associated with the presence of two or more separate variables. We report here an "OR" DNA logic gate based on a luminescent platinum(II) switch-on probe for silver nanoparticles and pH, both of which may be considered putative indicators of pollution. The modulation of metal complex/double-stranded DNA complex phosphorescence by Ag + and H + was used to construct a simple, rapid and label-free method for the label-free detection of pH and nanomolar Ag + ions and nanoparticles in aqueous solutions with high selectivity. © 2012 Elsevier B.V.

Keywords

Label-free detection, Logic gate, Luminescent probe, Platinum(II) complex, Silver nanoparticle

Publication Date

2012

Source Publication Title

Analytica Chimica Acta

Volume

733

Start Page

78

End Page

83

Publisher

Elsevier Masson

DOI

10.1016/j.aca.2012.04.041

Link to Publisher's Edition

http://dx.doi.org/10.1016/j.aca.2012.04.041

ISSN (print)

00032670

ISSN (electronic)

18734324

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