Stable aqueous ZnO@polymer core-shell nanoparticles with tunable photoluminescence and their application in cell imaging.
J Am Chem Soc
; 130(24): 7522-3, 2008 Jun 18.
Article
em En
| MEDLINE
| ID: mdl-18498161
ABSTRACT
Stable aqueous solutions of ZnO@polymer core-shell nanoparticles with tunable photoluminescence are prepared through a simple sol-gel route. The copolymer shell has many hydrophilic external groups and a hydrophobic internal layer which connects ZnO cores through covalent bonds. The optimal samples show quantum yield above 50% and stable emission for months. These samples with their concentrations of below 0.2 mg/mL are nontoxic to human cells. After uptake of these ZnO@polymer nanoparticles, the luminescent cells have enough life under UV light for microscopic imaging.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Polietilenoglicóis
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Óxido de Zinco
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Pontos Quânticos
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Metacrilatos
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Microscopia Ultravioleta
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Nitrilas
Idioma:
En
Ano de publicação:
2008
Tipo de documento:
Article