Antioxidative and Photo-Induced Effects of Different Types of N-Doped Graphene Quantum Dots.
N-doping
antibacterial effects
antioxidant
gamma-irradiation
graphene quantum dots
photodynamic therapy
photoluminescence
Journal
Materials (Basel, Switzerland)
ISSN: 1996-1944
Titre abrégé: Materials (Basel)
Pays: Switzerland
ID NLM: 101555929
Informations de publication
Date de publication:
20 Sep 2022
20 Sep 2022
Historique:
received:
29
08
2022
revised:
09
09
2022
accepted:
12
09
2022
entrez:
14
10
2022
pubmed:
15
10
2022
medline:
15
10
2022
Statut:
epublish
Résumé
Due to the increasing number of bacterial infections and the development of resistivity toward antibiotics, new materials and approaches for treatments must be urgently developed. The production of new materials should be ecologically friendly considering overall pollution with chemicals and economically acceptable and accessible to the wide population. Thus, the possibility of using biocompatible graphene quantum dots (GQDs) as an agent in photodynamic therapy was studied. First, dots were obtained using electrochemical cutting of graphite. In only one synthetic step using gamma irradiation, GQDs were doped with N atoms without any reagent. Obtained dots showed blue photoluminescence, with a diameter of 19-89 nm and optical band gap of 3.23-4.73 eV, featuring oxygen-containing, amino, and amide functional groups. Dots showed antioxidative activity; they quenched •OH at a concentration of 10 μg·mL
Identifiants
pubmed: 36233866
pii: ma15196525
doi: 10.3390/ma15196525
pmc: PMC9571130
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : Science Fund of the Republic of Serbia
ID : 7741955
Organisme : Ministry of Education, Science and Technological Development of the Republic of Serbia
ID : 451-03-68/2022-14/200017
Organisme : Ministry of Education, Science and Technological Development of the Republic of Serbia
ID : 451-03-68/2022-14/200178
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