Jump to main content
Jump to site search


Cellulose ionics: switching ionic diode responses by surface charge in reconstituted cellulose films

Author affiliations

Abstract

Cellulose films as well as chitosan-modified cellulose films of approximately 5 μm thickness, reconstituted from ionic liquid media onto a poly(ethylene-terephthalate) (PET, 6 μm thickness) film with a 5, 10, 20, or 40 μm diameter laser-drilled microhole, show significant current rectification in aqueous NaCl. Reconstituted α-cellulose films provide “cationic diodes” (due to predominant cation conductivity) whereas chitosan-doped cellulose shows “anionic diode” effects (due to predominant anion conductivity). The current rectification, or “ionic diode” behaviour, is investigated as a function of NaCl concentration, pH, microhole diameter, and molecular weight of the chitosan dopant. Future applications are envisaged exploiting the surface charge induced switching of diode currents for signal amplification in sensing.

Graphical abstract: Cellulose ionics: switching ionic diode responses by surface charge in reconstituted cellulose films

Back to tab navigation

Publication details

The article was received on 03 Jun 2017, accepted on 13 Aug 2017 and first published on 14 Aug 2017


Article type: Paper
DOI: 10.1039/C7AN00918F
Citation: Analyst, 2017, Advance Article
  • Open access: Creative Commons BY-NC license
  •   Request permissions

    Cellulose ionics: switching ionic diode responses by surface charge in reconstituted cellulose films

    B. D. B. Aaronson, D. Wigmore, M. A. Johns, J. L. Scott, I. Polikarpov and F. Marken, Analyst, 2017, Advance Article , DOI: 10.1039/C7AN00918F

    This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material and it is not used for commercial purposes.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements