Carbon dots derived from lychee waste: Application for Fe3+ ions sensing in real water and multicolor cell imaging of skin melanoma cells.
Mater Sci Eng C Mater Biol Appl
; 108: 110429, 2020 Mar.
Article
em En
| MEDLINE
| ID: mdl-31923934
ABSTRACT
Exploit of biomass as an inexhaustible resource has accepted much more curiosity to the present research world. Herein, a simple, one-step solvothermal action has been used to synthesize an ascendable amount of fluorescent carbon dots (CDs) with an average size of~3.13â¯nm, from Low-reasonable and green source lychee waste. The excitation/emission maxima of CDs have 365/443â¯nm with high quantum yield (23.5%). The present ingredient predominantly contained carboxylic acid and hydroxyl group that acted as a passive agent for stabilizing the CDs. The structural and optical properties were evaluated through HRTEM, FTIR, UV-vis, zeta potential, XPS, fluorescence, and fluorescence lifetime experiments. We investigated the manoeuvre of our synthesized CDs as a probe for detection of Fe3+ ions in water bodies; This sensing approach showed impressive selectivity and sensitivity towards Fe3+ions with LOD 23.6â¯nM. The sensing mechanism took place through static quenching which was entrenched through fluorescence lifetime measurements. Fe3+ ions detection was basically carried out with efficacy in real water. For its lofty Photo-stability, low cytotoxicity and cell viability the probe were substantially applied for bio-imaging experiment i.e. intracellular multi-color cell imaging in skin melanoma cells (A375 cells) with and without Fe3+ ions exemplifying its real applications in living cells.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Temas:
Geral
/
Tipos_de_cancer
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Pele
Base de dados:
MEDLINE
Assunto principal:
Neoplasias Cutâneas
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Carbono
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Litchi
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Pontos Quânticos
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Melanoma
Limite:
Humans
Idioma:
En
Revista:
Mater Sci Eng C Mater Biol Appl
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Índia