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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

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

Veröffentlichungsdatum dieses Volltextes: 21 Dez 2023 07:18
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.55235


Zusammenfassung

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

DokumentenartArtikel
Titel eines Journals oder einer ZeitschriftAnalytical and Bioanalytical Chemistry
Verlag:SPRINGER HEIDELBERG
Ort der Veröffentlichung:HEIDELBERG
Band:416
Seitenbereich:S. 2097-2106
Datum12 Dezember 2023
InstitutionenChemie und Pharmazie > Institut für Analytische Chemie, Chemo- und Biosensorik > Chemo- und Biosensorik (Prof. Antje J. Bäumner, ehemals Prof. Wolfbeis)
Identifikationsnummer
WertTyp
10.1007/s00216-023-05082-yDOI
Stichwörter / KeywordsPOLYIMIDE; TRANSITIONS; Laser-induced graphene; Electrochemical biosensor; Reproducibility; Shelf-life; Stability; Morphology
Dewey-Dezimal-Klassifikation500 Naturwissenschaften und Mathematik > 540 Chemie
StatusVeröffentlicht
BegutachtetJa, diese Version wurde begutachtet
An der Universität Regensburg entstandenJa
URN der UB Regensburgurn:nbn:de:bvb:355-epub-552353
Dokumenten-ID55235

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