Chitosan conjugation: a facile approach to enhance the cell viability of LaF3:Yb,Er upconverting nanotransducers in human breast cancer cells.
Carbohydr Polym
; 121: 302-8, 2015 May 05.
Article
en En
| MEDLINE
| ID: mdl-25659702
ABSTRACT
In this study, chitosan functionalized LaF3Yb,Er upconverting nanotransducers (UCNTs) with controlled size and shape have been successfully synthesized by a facile one pot precipitation method. The chitosan encapsulated UCNTs show bright upconversion fluorescence upon excitation with 974 nm NIR region. The average crystallite size of UCNTs about 7.6 nm was achieved using chitosan mediated synthesis. The FTIR result confirms the chitosan coating over the LaF3Yb,Er nanoparticles. Due to the surface modification using natural biopolymer chitosan, the as-prepared nanocrystals show excellent biocompatibility even at high dose at 200 µg/ml. To the best of our knowledge the presented work is the first report on in vitro analysis of chitosan conjugated LaF3Yb,Er upconverting nanocrystals in human breast (MCF-7) cancer cells. These nanotransducers can be used as luminescent probes for bioimaging and deep tissue cancer therapeutic applications.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Iterbio
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Fármacos Fotosensibilizantes
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Quitosano
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Erbio
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Nanopartículas
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Fluoruros
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Lantano
Límite:
Humans
Idioma:
En
Revista:
Carbohydr Polym
Año:
2015
Tipo del documento:
Article
País de afiliación:
India