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Updated: May 11, 2026

A Polyaniline-based Sensor of Nucleic Acids
Published on: November 1, 2016
Anionic polysaccharides as templates for the synthesis of conducting polyaniline and as structural matrix for
Ann-Sofie Leppänen1, Chunlin Xu, Jun Liu
1Laboratory of Wood and Paper Chemistry, Process Chemistry Centre, Åbo Akademi University, Porthaninkatu 3, 20500 Turku, Finland. aleppane@abo.fi
Abstract:
A green chemoenzymatic pathway for the synthesis of conducting polyaniline (PANI) composites is presented. Laccase-catalyzed polymerization in combination with anionic polysaccharides is used to produce polysaccharide/PANI composites, which can be processed into flexible films or coated onto cellulose surfaces. Different polysaccharide templates are assessed, including κ-carrageenan, native spruce O-acetyl galactoglucomannan (GGM), and TEMPO-oxidized cellulose and GGM. The resulted conducting biocomposites derived from natural materials provide a broad range of potential applications, such as in biosensors, electronic devices, and tissue engineering.
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