Graphene Wrapping of Electrospun Nanofibers for Enhanced Electrochemical Sensing.
Journal
ACS omega
ISSN: 2470-1343
Titre abrégé: ACS Omega
Pays: United States
ID NLM: 101691658
Informations de publication
Date de publication:
27 Apr 2021
27 Apr 2021
Historique:
received:
30
11
2020
accepted:
16
03
2021
entrez:
31
5
2021
pubmed:
1
6
2021
medline:
1
6
2021
Statut:
epublish
Résumé
This paper presents a scalable method of developing ultrasensitive electrochemical biosensors. This is achieved by maximizing sensor conductivity through graphene wrapping of carbonized electrospun nanofibers. The effectiveness of the graphene wrap was determined visually by scanning electron microscopy and chemically by Fourier transform infrared spectroscopy, Raman spectroscopy, and X-ray diffraction. The sensing performance of different electrode samples was electrochemically characterized using cyclic voltammetry and electrochemical impedance spectroscopy, with the graphene-wrapped carbonized nanofiber electrode showing significantly improved performance. The graphene-wrapped carbonized nanofibers exhibited a relative conductivity of ∼14 times and an electroactive surface area of ∼2 times greater compared to the bare screen-printed carbon electrode despite experiencing inhibitive effects from the carbon glue used to bind the samples to the electrode. The results indicate potential for a highly conductive, inert sensing platform.
Identifiants
pubmed: 34056211
doi: 10.1021/acsomega.0c05823
pmc: PMC8153741
doi:
Types de publication
Journal Article
Langues
eng
Pagination
10568-10577Informations de copyright
© 2021 The Authors. Published by American Chemical Society.
Déclaration de conflit d'intérêts
The authors declare no competing financial interest.
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