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- Title
Design of a smart sensor mesh for the measurement of pH in ostomy applications.
- Authors
McLister, Anna; Casimero, Charnete; McConville, Aaron; Taylor, Charlotte M.; Lawrence, Clare L.; Smith, Robert B.; Mathur, Ashish; Davis, James
- Abstract
A carbon-loaded polyethylene film was modified through a combination of laser ablation and electrochemical anodisation to yield a mechanically flexible yet electroanalytically sensitive mesh. A custom flavin derivative bearing a pendant phenol substituent was electropolymerised onto the substrate, and its electrochemical properties were investigated. The reversible flavin electrochemistry was retained (Ep = −0.374 V vs. Ag/AgCl, pH 7), and the peak position was found to shift by 60 mV/pH over a range covering pH 2.55 to pH 8.12. The stability of the resulting composite has been evaluated, and the analytical applicability towards the voltammetric measurement of pH in human urine was critically assessed.
- Subjects
INTELLIGENT sensors; POLYETHYLENE films; LASER ablation; ELECTROCHEMISTRY; PHENOL
- Publication
Journal of Materials Science, 2019, Vol 54, Issue 14, p10410
- ISSN
0022-2461
- Publication type
Article
- DOI
10.1007/s10853-019-03600-x