Carbohydrate Polymers Ana Rebelo 2018.pdf (2.14 MB)

Poly(4-vinylaniline)/polyaniline bilayer functionalized bacterial cellulose membranes as bioelectronics interfaces

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journal contribution
posted on 30.11.2018, 13:59 by Ana M. Rodrigues Rebelo, Yang Liu, Changqing Liu, Karl-Herbert Schafer, Monika Saumer, Guang Yang
Bacterial cellulose (BC) fibers are chemically functionalized with poly(4-vinylaniline) (PVAN) interlayer for further enhancement of electrical conductivity and cell viability of polyaniline (PANI) coated BC nanocomposites. PVAN is found to have promoted the formation of a uniform PANI layer with nanofiber- and nanorod-like supramolecular structures, as an overall augmentation of PANI yield. Compositional and microstructural analysis indicates a PVAN/PANI bilayer of approximately 2 μm formed on BC. The solid-state electrical conductivity of such synthesized BC nanocomposites can be as high as (4.5 ± 1.7) × 10−2 S cm−1 subject to the amounts of PVAN chemically embraced. BC/PVAN/PANI nanocomposites are confirmed to be thermally stable up to 225 °C, and no signs of cytotoxicity for SVZ neural stem cells are detected, with cell viability up to 90% on BC/PVAN/PANI membranes. We envisage these new electrically conductive BC/PVAN/PANI nanocomposites can potentially enable various biomedical applications, such as for the fabrication of bioelectronic interfaces and biosensors.

Funding

This research was supported by a Marie Curie International Research Staff Exchange Scheme Project of the 7th European Community Framework Program (Grant No. PIRSES-GA-2010-269113), entitled “Micro-Multi-Material Manufacture to Enable Multifunctional Miniaturized Devices (M6)”.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

Carbohydrate Polymers

Volume

204

Pages

190 - 201

Citation

REBELO, A.R. ... et al, 2018. Poly(4-vinylaniline)/polyaniline bilayer functionalized bacterial cellulose membranes as bioelectronics interfaces. Carbohydrate Polymers, 204, pp.190-201.

Publisher

© Elsevier

Version

AM (Accepted Manuscript)

Publisher statement

This paper was accepted for publication in the journal Carbohydrate Polymers and the definitive published version is available at https://doi.org/10.1016/j.carbpol.2018.10.017

Acceptance date

06/10/2018

Publication date

2018-10-09

Copyright date

2019

ISSN

0144-8617

Language

en

Exports