Self-Assembled Regenerated Cellulose Spacer Film in Thin Film and Generator-Collector Electrodes

Anne Vuorema (Corresponding Author), Mika Sillanpää, Marianna Vehviläinen, Taina Kamppuri, Pertti Nousiainen, Wim Thielemans, Frank Marken (Corresponding Author)

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

Abstract

Reconstituted cellulose spontaneously self-assembles at surfaces from an alkaline cellulose solution (ca. 1wt%, pH14, prepared with an enzymatic method from wood pulp) into porous films with approximately 300nm thickness per layer, for example onto immersed tin-doped indium oxide (ITO) electrodes. Sequential multi-layer deposition allows control over the thickness of the assembled films. The hydrophilic properties of the cellulose film electrodes are utilised here (i) as dip-probe with capillary force picking up sample solution and (ii) as flow-through generator-collector probe, for example for future application in in situ chromatographic separation in end-column detection with nano-molar sensitivity.

Original languageEnglish
Pages (from-to)1773-1779
Number of pages7
JournalElectroanalysis
Volume25
Issue number7
DOIs
Publication statusPublished - 1 Jul 2013
MoE publication typeA1 Journal article-refereed

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Keywords

  • Assembly
  • Double layer
  • Electrochemistry
  • End-column sensor
  • Hydrophilicity
  • ITO
  • Junction
  • Regenerated nano-cellulose
  • Voltammetry

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