期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 130, 期 12, 页码 3710-+出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja7103125
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We report a facile intracellular manipulation of fluorescent magnetic Fe3O4-CdSe nanoparticles using magnetic force. The growth of CdSe quantum dots on Fe3O4 nanoparticles produces Fe3O4-CdSe nanoparticles with two distinct properties, fluorescence and superparamagnetism. After nonspecific surface modification using glutathione (GSH), the hydrophilic Fe3O4-CdSe@GSH nanoparticles can be easily uptaken by an HEK293T cell line. Conlocal images indicate that the uptaken nanoparticles can be manipulated using a small magnet. The successful intracellular manipulation of magnetic nanoparticles may offer a new strategy for studying polarized cells.
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