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A nature-derived, flexible and three dimensional (3D) nano-composite for chronic wounds pH monitoring

Yang, M; Choy, KL; (2021) A nature-derived, flexible and three dimensional (3D) nano-composite for chronic wounds pH monitoring. Materials Letters , 288 , Article 129335. 10.1016/j.matlet.2021.129335. Green open access

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Abstract

Current technologies on conductive carbon aerogels are merely for application of super-capacitors, anodes of lithium ion batteries and electrocatalysts. To our best knowledge, carbon nanofibre (CNF) aerogels in biomedical application of chronic wound monitoring have not been reported yet. In this paper, we proposed a chronic wounds pH sensor, which is based on 3D free-standing conductive CNF aerogel derived from pyrolyzed bacterial cellulose (p-BC) as conducting substrate and it is incorporated with flexible and proton-selective PDMS/PANI composite. The resulted p-BC/PDMS/PANI nanocomposite is soft, flexible, and can exhibit near Nernst limit pH sensitivity (~−50.4 mV/pH) in pH buffer solution, and −29 mV/pH in in vitro simulated wound fluid. This renders its applications in flexible bio-sensors and smart wound dressings.

Type: Article
Title: A nature-derived, flexible and three dimensional (3D) nano-composite for chronic wounds pH monitoring
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.matlet.2021.129335
Publisher version: https://doi.org/10.1016/j.matlet.2021.129335
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions.
Keywords: Biomaterial, Biosensor, Nanocomposite, Wound healing
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office > Institute for Materials Discovery
URI: https://discovery.ucl.ac.uk/id/eprint/10120415
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