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Updated: Aug 26, 2025

A Polyaniline-based Sensor of Nucleic Acids
Published on: November 1, 2016
Optical sensing of aqueous nitrate anion by a platinum(II) triimine salt based solid state material
Amie E Norton1, Mahmood Karimi Abdolmaleki1, Logan Andriot1
1Department of Chemistry, University of Cincinnati, Cincinnati, OH, 45221, USA. amien@ksu.edu.
Abstract:
Selective and quantitative measurement of aqueous nitrate (NO3-) anion is achieved using solid [Pt(Cl-4-tpy)Cl]ClO4 salt (Cl-4-tpy = 4-chloro-2,2':6'2''-terpyridine), and as the salt supported on controlled porous glass. This detection method relies on the color change of the Pt(II) complex from yellow to red and intense luminescence response upon ClO4- exchange with NO3- due to concomitant enhancement of Pt⋯Pt interactions. The spectroscopic response is highly selective for NO3- over a large range of halides and oxoanions.
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