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Updated: Apr 15, 2026

A Polyaniline-based Sensor of Nucleic Acids
Published on: November 1, 2016
Ultrasensitive detection of nitroexplosive - picric acid via a conjugated polyelectrolyte in aqueous media and solid
Sameer Hussain1, Akhtar Hussain Malik, Mohammad Adil Afroz
1Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India. pki@iitg.ernet.in.
Abstract:
Picric acid (PA) detection at parts per trillion (ppt) levels is achieved by a conjugated polyelectrolyte (PMI) in 100% aqueous media and on a solid platform using paper strips and chitosan (CS) films. The unprecedented selectivity is accomplished via combination of ground state charge transfer and resonance energy transfer (RET) facilitated by favorable electrostatic interactions.
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