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Related Experiment Video

Updated: Jul 13, 2026

A Polyaniline-based Sensor of Nucleic Acids
07:58

A Polyaniline-based Sensor of Nucleic Acids

Published on: November 1, 2016

Inkjet printable polyaniline nanoformulations.

Orawan Ngamna1, Aoife Morrin, Anthony J Killard

  • 1ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia.

Langmuir : the ACS Journal of Surfaces and Colloids
|July 10, 2007
PubMed
Summary

Inkjet-printable aqueous polyaniline (PANI) nanodispersions were developed. Optimized synthesis yielded stable, conductive PANI nanoparticles suitable for printing conductive films.

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Nanotechnology

Background:

  • Conducting polymers like polyaniline (PANI) are crucial for electronic applications.
  • Developing stable, processable PANI formulations for additive manufacturing is an ongoing challenge.

Purpose of the Study:

  • To optimize the synthesis of aqueous polyaniline (PANI) nanodispersions doped with dodecylbenzenesulfonic acid (DBSA).
  • To characterize the PANI nanodispersion for suitability in inkjet printing.
  • To evaluate the electrochemical properties and stability of printed PANI films.

Main Methods:

  • Synthesis of PANI nanodispersions with varying aniline/ammonium persulphate (APS)/DBSA ratios.
  • Characterization using particle size analysis, UV-vis spectroscopy, conductivity measurements, surface tension, and rheology.

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Last Updated: Jul 13, 2026

A Polyaniline-based Sensor of Nucleic Acids
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  • Inkjet printing of optimized PANI nanodispersions and electrochemical evaluation of printed films.

    • Main Results:

    • Optimal synthesis ratio identified as 1.0:0.5:1.2 aniline/APS/DBSA.
    • Resulting nanodispersion exhibited uniform particle size (~82 nm) and high doping level.
    • Optimized PANI nanodispersions demonstrated high conductivity and suitability for inkjet printing.
    • Well-defined and stable electrochemistry was observed for the printed PANI films.

    Conclusions:

    • The study successfully optimized aqueous PANI nanodispersion synthesis for inkjet printing.
    • The developed PANI formulation offers a promising route for fabricating conductive polymer films via additive manufacturing.
    • The optimized PANI nanodispersions exhibit excellent electrochemical performance and stability.