Laser induced graphene sensors for assessing pH: Application to wound management

Robert Barber; Sarah Cameron; Amy Devine; Andrew McCombe; L. Kirsty Pourshahidi; Jill Cundell; Souradeep Roy; A Mathur; Charnete Casimero; P Papakonstantinou; J Davis

doi:10.1016/j.elecom.2020.106914

Laser induced graphene sensors for assessing pH: Application to wound management

Robert Barber, Sarah Cameron, Amy Devine, Andrew McCombe, L. Kirsty Pourshahidi, Jill Cundell, Souradeep Roy , A Mathur, Charnete Casimero, P Papakonstantinou, J Davis

Research output: Contribution to journal › Article › peer-review

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Abstract

The laser-induced modification of polyimide substrates to yield conductive graphitised tracks sensitive to the solution pH is investigated. The influence of laser output and operating characteristics on the surface morphology
and the consequential impact on electrochemical properties have been evaluated. Several sensor formats have been pursued using both potentiometric and voltammetric methodologies and found to provide a stable means of determining pH. While the potentiometric system was found to provide sub-Nernstian responses, the voltammetric system employing a riboflavin (vitamin B2) redox probe was found to exhibit classic Nernstian profiles (56 mV/pH). The versatility of the laser patterning on polyimide is shown to yield a mechanically flexible double-sided probe that could be suitable for use in a wide variety of clinical applications.

Original language	English
Article number	106914
Pages (from-to)	1-6
Number of pages	6
Journal	Electrochemistry Communications
Volume	123
Early online date	5 Jan 2021
DOIs	https://doi.org/10.1016/j.elecom.2020.106914
Publication status	Published (in print/issue) - 28 Feb 2021

Bibliographical note

Funding Information:
The authors acknowledge financial support from the European Union’s INTERREG VA Programme, managed by the Special EU Programmes Body (SEUPB), the Department for the Economy (DfE) Northern Ireland, Kimal PLC, Abbott Diabetes Care Inc. and the British Council UKIERI (DST 65/2017).

Publisher Copyright:
© 2021 The Authors

Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.

Keywords

Electrodes
Laser induced graphene
LIG
pH
riboflavin
wound
Riboflavin
Wound

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.elecom.2020.106914Licence: CC BY-NC-ND

Laser induced graphene sensors for assessing pH Application to wound managementFinal published version, 3.12 MBLicence: CC BY-NC-ND

Cite this

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title = "Laser induced graphene sensors for assessing pH: Application to wound management",

abstract = "The laser-induced modification of polyimide substrates to yield conductive graphitised tracks sensitive to the solution pH is investigated. The influence of laser output and operating characteristics on the surface morphologyand the consequential impact on electrochemical properties have been evaluated. Several sensor formats have been pursued using both potentiometric and voltammetric methodologies and found to provide a stable means of determining pH. While the potentiometric system was found to provide sub-Nernstian responses, the voltammetric system employing a riboflavin (vitamin B2) redox probe was found to exhibit classic Nernstian profiles (56 mV/pH). The versatility of the laser patterning on polyimide is shown to yield a mechanically flexible double-sided probe that could be suitable for use in a wide variety of clinical applications.",

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AU - Barber, Robert

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AU - Devine, Amy

AU - McCombe, Andrew

AU - Pourshahidi, L. Kirsty

AU - Cundell, Jill

AU - Roy , Souradeep

AU - Mathur, A

AU - Casimero, Charnete

AU - Papakonstantinou, P

AU - Davis, J

N1 - Funding Information: The authors acknowledge financial support from the European Union’s INTERREG VA Programme, managed by the Special EU Programmes Body (SEUPB), the Department for the Economy (DfE) Northern Ireland, Kimal PLC, Abbott Diabetes Care Inc. and the British Council UKIERI (DST 65/2017). Publisher Copyright: © 2021 The Authors Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2021/2/28

Y1 - 2021/2/28

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AB - The laser-induced modification of polyimide substrates to yield conductive graphitised tracks sensitive to the solution pH is investigated. The influence of laser output and operating characteristics on the surface morphologyand the consequential impact on electrochemical properties have been evaluated. Several sensor formats have been pursued using both potentiometric and voltammetric methodologies and found to provide a stable means of determining pH. While the potentiometric system was found to provide sub-Nernstian responses, the voltammetric system employing a riboflavin (vitamin B2) redox probe was found to exhibit classic Nernstian profiles (56 mV/pH). The versatility of the laser patterning on polyimide is shown to yield a mechanically flexible double-sided probe that could be suitable for use in a wide variety of clinical applications.

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KW - Laser induced graphene

KW - LIG

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KW - Riboflavin

KW - Wound

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JO - Electrochemistry Communications

JF - Electrochemistry Communications

M1 - 106914

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Laser induced graphene sensors for assessing pH: Application to wound management

Abstract

Bibliographical note

Keywords

UN SDGs

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