Self-assembled polyaniline thin films: Comparison of poly(styrene sulphonate) and oligonucleotide as a polyanion

Jadranka Travas-Sejdic; Rohith Soman; Hui Peng

doi:10.1016/j.tsf.2005.10.044

Self-assembled polyaniline thin films: Comparison of poly(styrene sulphonate) and oligonucleotide as a polyanion

Jadranka Travas-Sejdic^*
, Rohith Soman
, Hui Peng

^*Corresponding author for this work

The University of Auckland

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

An electrostatic self-assembly process based on layer-by-layer deposition was employed to prepare thin films of charged polyaniline (PANI) and two polyanions: poly(styrene sulphonate) (PSSA) and an 18-base oligonucleotide (ON). The concentrations of polyion depositing solutions were varied and the effect on the thin films' properties was examined. The layer-by-layer deposition was monitored by means of UV-Vis spectroscopy, and it was shown that in all investigated cases the deposition of bilayers is linear in respect to the number of deposited bilayers. The UV-Vis results confirmed that ONs easily incorporate into PANI/ON films. Cyclic voltammetry experiments revealed different electrochemical behaviour of PANI/PSSA and PANI/ON films, with PANI/ ON films showing less electroactivity. Scanning Electron Microscopy analysis showed significantly different morphology of those films.

Original language	English
Pages (from-to)	96-102
Number of pages	7
Journal	Thin Solid Films
Volume	497
Issue number	1-2
DOIs	https://doi.org/10.1016/j.tsf.2005.10.044
State	Published - 21 Feb 2006
Externally published	Yes

Keywords

Polyaniline
Polyanion
Raman spectroscopy
Self-assembly

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10.1016/j.tsf.2005.10.044

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title = "Self-assembled polyaniline thin films: Comparison of poly(styrene sulphonate) and oligonucleotide as a polyanion",

abstract = "An electrostatic self-assembly process based on layer-by-layer deposition was employed to prepare thin films of charged polyaniline (PANI) and two polyanions: poly(styrene sulphonate) (PSSA) and an 18-base oligonucleotide (ON). The concentrations of polyion depositing solutions were varied and the effect on the thin films' properties was examined. The layer-by-layer deposition was monitored by means of UV-Vis spectroscopy, and it was shown that in all investigated cases the deposition of bilayers is linear in respect to the number of deposited bilayers. The UV-Vis results confirmed that ONs easily incorporate into PANI/ON films. Cyclic voltammetry experiments revealed different electrochemical behaviour of PANI/PSSA and PANI/ON films, with PANI/ ON films showing less electroactivity. Scanning Electron Microscopy analysis showed significantly different morphology of those films.",

keywords = "Polyaniline, Polyanion, Raman spectroscopy, Self-assembly",

author = "Jadranka Travas-Sejdic and Rohith Soman and Hui Peng",

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doi = "10.1016/j.tsf.2005.10.044",

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TY - JOUR

T1 - Self-assembled polyaniline thin films

T2 - Comparison of poly(styrene sulphonate) and oligonucleotide as a polyanion

AU - Travas-Sejdic, Jadranka

AU - Soman, Rohith

AU - Peng, Hui

PY - 2006/2/21

Y1 - 2006/2/21

N2 - An electrostatic self-assembly process based on layer-by-layer deposition was employed to prepare thin films of charged polyaniline (PANI) and two polyanions: poly(styrene sulphonate) (PSSA) and an 18-base oligonucleotide (ON). The concentrations of polyion depositing solutions were varied and the effect on the thin films' properties was examined. The layer-by-layer deposition was monitored by means of UV-Vis spectroscopy, and it was shown that in all investigated cases the deposition of bilayers is linear in respect to the number of deposited bilayers. The UV-Vis results confirmed that ONs easily incorporate into PANI/ON films. Cyclic voltammetry experiments revealed different electrochemical behaviour of PANI/PSSA and PANI/ON films, with PANI/ ON films showing less electroactivity. Scanning Electron Microscopy analysis showed significantly different morphology of those films.

AB - An electrostatic self-assembly process based on layer-by-layer deposition was employed to prepare thin films of charged polyaniline (PANI) and two polyanions: poly(styrene sulphonate) (PSSA) and an 18-base oligonucleotide (ON). The concentrations of polyion depositing solutions were varied and the effect on the thin films' properties was examined. The layer-by-layer deposition was monitored by means of UV-Vis spectroscopy, and it was shown that in all investigated cases the deposition of bilayers is linear in respect to the number of deposited bilayers. The UV-Vis results confirmed that ONs easily incorporate into PANI/ON films. Cyclic voltammetry experiments revealed different electrochemical behaviour of PANI/PSSA and PANI/ON films, with PANI/ ON films showing less electroactivity. Scanning Electron Microscopy analysis showed significantly different morphology of those films.

KW - Polyaniline

KW - Polyanion

KW - Raman spectroscopy

KW - Self-assembly

UR - https://www.scopus.com/pages/publications/30344457350

U2 - 10.1016/j.tsf.2005.10.044

DO - 10.1016/j.tsf.2005.10.044

M3 - 文章

AN - SCOPUS:30344457350

SN - 0040-6090

VL - 497

SP - 96

EP - 102

JO - Thin Solid Films

JF - Thin Solid Films

IS - 1-2

ER -

Self-assembled polyaniline thin films: Comparison of poly(styrene sulphonate) and oligonucleotide as a polyanion

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Keywords

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