Fluorescent Carbon Dots from Food Industry By-Products for Cell Imaging.
bioimaging
carbon dots
circular economy
food by-products
pH sensing
photoluminescence
Journal
Journal of functional biomaterials
ISSN: 2079-4983
Titre abrégé: J Funct Biomater
Pays: Switzerland
ID NLM: 101570734
Informations de publication
Date de publication:
07 Feb 2023
07 Feb 2023
Historique:
received:
17
12
2022
revised:
20
01
2023
accepted:
01
02
2023
entrez:
24
2
2023
pubmed:
25
2
2023
medline:
25
2
2023
Statut:
epublish
Résumé
Herein, following a circular economy approach, we present the synthesis of luminescent carbon dots via the thermal treatment of chestnut and peanut shells, which are abundant carbon-rich food industry by-products. As-synthesized carbon dots have excellent water dispersibility thanks to their negative surface groups, good luminescence, and photo-stability. The excitation-emission behaviour as well as the surface functionalization of these carbon dots can be tuned by changing the carbon source (chestnuts or peanuts) and the dispersing medium (water or ammonium hydroxide solution). Preliminary in vitro biological data proved that the samples are not cytotoxic to fibroblasts and can act as luminescent probes for cellular imaging. In addition, these carbon dots have a pH-dependent luminescence and may, therefore, serve as cellular pH sensors. This work paves the way towards the development of more sustainable carbon dot production for biomedical applications.
Identifiants
pubmed: 36826889
pii: jfb14020090
doi: 10.3390/jfb14020090
pmc: PMC9963507
pii:
doi:
Types de publication
Journal Article
Langues
eng
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