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Behrent, Arne ; Borggraefe, Veronika ; Baeumner, Antje J.

Laser-induced graphene trending in biosensors: understanding electrode shelf-life of this highly porous material

Article

Behrent, Arne , Borggraefe, Veronika and Baeumner, Antje J. (2023) Laser-induced graphene trending in biosensors: understanding electrode shelf-life of this highly porous material. Analytical and Bioanalytical Chemistry 416, pp. 2097-2106.

DOI to cite this document: 10.5283/epub.55235


Abstract

Laser-induced graphene (LIG) has received much attention in recent years as a possible transducer material for electroanalytical sensors. Its simplicity of fabrication and good electrochemical performance are typically highlighted. However, we found that unmodified and untreated LIG electrodes had a limited shelf-life for certain electroanalytical applications, likely due to the adsorption of ...

Laser-induced graphene (LIG) has received much attention in recent years as a possible transducer material for electroanalytical sensors. Its simplicity of fabrication and good electrochemical performance are typically highlighted. However, we found that unmodified and untreated LIG electrodes had a limited shelf-life for certain electroanalytical applications, likely due to the adsorption of adventitious hydrocarbons from the storage environment. Electrode responses did not change immediately after exposure to ambient conditions but over longer periods of time, probably due to the immense specific surface area of the LIG material. LIG shelf-life is seldomly discussed prominently in the literature, yet overall trends for solutions to this challenge can be identified. Such findings from the literature regarding the long-term storage stability of LIG electrodes, pure and modified, are discussed here along with explanations for likely protective mechanisms. Specifically, applying a protective coating on LIG electrodes after manufacture is possibly the easiest method to preserve electrode functionality and should be identified as a trend for well-performing LIG electrodes in the future. Furthermore, suggested influences of the accompanying LIG microstructure/morphology on electrode characteristics are evaluated.



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Details

Item typeArticle
Journal or Publication TitleAnalytical and Bioanalytical Chemistry
PublisherSPRINGER HEIDELBERG
Open Access TypeDEAL (Springer)
Place of PublicationHEIDELBERG
Volume416
Page Rangepp. 2097-2106
Date12 December 2023
Date of publication21 Dec 2023 07:18
InstitutionsChemistry and Pharmacy > Institut für Analytische Chemie, Chemo- und Biosensorik > Chemo- und Biosensorik (Prof. Antje J. Bäumner, formerly Prof. Wolfbeis)
Identification Number
ValueType
10.1007/s00216-023-05082-yDOI
KeywordsPOLYIMIDE; TRANSITIONS; Laser-induced graphene; Electrochemical biosensor; Reproducibility; Shelf-life; Stability; Morphology
Dewey Decimal Classification500 Science > 540 Chemistry & allied sciences
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgYes
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-552353
Item ID55235

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