Antimicrobial activity of graphene oxide quantum dots: impacts of chemical reduction.
Journal
Nanoscale advances
ISSN: 2516-0230
Titre abrégé: Nanoscale Adv
Pays: England
ID NLM: 101738708
Informations de publication
Date de publication:
17 Mar 2020
17 Mar 2020
Historique:
received:
06
11
2019
accepted:
19
01
2020
entrez:
22
9
2022
pubmed:
20
1
2020
medline:
20
1
2020
Statut:
epublish
Résumé
Design and engineering of graphene-based functional nanomaterials for effective antimicrobial applications has been attracting extensive interest. In the present study, graphene oxide quantum dots (GOQDs) were prepared by chemical exfoliation of carbon fibers and exhibited apparent antimicrobial activity. Transmission electron microscopic measurements showed that the lateral length ranged from a few tens to a few hundred nanometers. Upon reduction by sodium borohydride, whereas the UV-vis absorption profile remained largely unchanged, steady-state photoluminescence measurements exhibited a marked blue-shift and increase in intensity of the emission, due to (partial) removal of phenanthroline-like structural defects within the carbon skeletons. Consistent results were obtained in Raman and time-resolved photoluminescence measurements. Interestingly, the samples exhibited apparent, but clearly different, antimicrobial activity against
Identifiants
pubmed: 36133054
doi: 10.1039/c9na00698b
pii: c9na00698b
pmc: PMC9417586
doi:
Types de publication
Journal Article
Langues
eng
Pagination
1074-1083Informations de copyright
This journal is © The Royal Society of Chemistry.
Déclaration de conflit d'intérêts
There are no conflicts to declare.
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