It has been proposed that fluctuations in wound pH can give valuable insights into the healing processes in chronic wounds, but acquiring such data can be a technological challenge especially where there is little sample available. Developments in voltammetric pH sensing have opened up new avenues for the design of probes that can function in ultra-small volumes and can be inherently disposable but, as yet few can meet the demands of wound monitoring. A preliminary investigation of the pH response of a new redox wire prepared from a peptide homopolymer of tryptophan is presented and its potential applicability as a sensing material for use in smart dressings is critically discussed.
McLister, A., & Davis, J. (2015). Molecular Wiring in Smart Dressings: Opening a New Route to Monitoring Wound pH. Healthcare, 3(3), 466–477. https://doi.org/10.3390/healthcare3030466