Self‐Assembled Regenerated Cellulose Spacer Film in Thin Film and Generator‐Collector Electrodes |
| |
| Authors: | Anne Vuorema Mika Sillanpää Marianna Vehviläinen Taina Kamppuri Pertti Nousiainen Wim Thielemans Frank Marken |
| |
| Institution: | 1. Laboratory of Green Chemistry, Faculty of Technology, Lappeenranta University of Technology, Sammonkatu 12, FI‐50130?Mikkeli, Finland;2. Department of Chemistry, University of Bath, Bath BA2?7AY, UK;3. Department of Materials Science, Tampere University of Technology, P.O. Box 589, 33101 Tampere, Finland;4. School of Chemistry, University of Nottingham, Nottingham NG7?2RD, UK;5. Process & Environmental Research Division, Faculty of Engineering, University of Nottingham, Nottingham NG7?2RD, UK |
| |
| Abstract: | Reconstituted cellulose spontaneously self‐assembles at surfaces from an alkaline cellulose solution (ca. 1 wt%, pH 14, prepared with an enzymatic method from wood pulp) into porous films with approximately 300 nm 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. |
| |
| Keywords: | Regenerated nano‐cellulose Double layer Hydrophilicity Electrochemistry Voltammetry Assembly ITO Junction End‐column sensor |
|
|
