Transfection of living HeLa cells with fluorescent poly-cytosine encapsulated Ag nanoclusters.
Transfection of living HeLa cells with fluorescent poly-cytosine encapsulated Ag nanoclusters.
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DOI:
10.1039/c0pp00015a
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发表时间:
2010-05
期刊:
影响因子:
--
通讯作者:
Vosch T
中科院分区:
文献类型:
--
作者:
Antoku Y;Hotta J;Mizuno H;Dickson RM;Hofkens J;Vosch T
The fluorescence of silver clusters encapsulated by single stranded oligo-DNA (24 cytosine base pairs, C24:Agn) was used to monitor the transfection of this new silver/DNA fluorophore inside living HeLa cells. For this, the C24:Agn molecules were complexed with a commercially available transfection reagent Lipofectamine and the internalization of C24:Agn was followed with confocal fluorescence microscopy. Bright near-infrared fluorescence was observed from inside the transfected HeLa cells, when exciting with 633 nm excitation, opening up the possibility for the use of these C24:Agn clusters for biological labelling and imaging of living cells and for monitoring the transfection process with limited harm to the living cells.
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