期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 19, 期 33, 页码 6023-6028出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b906839b
关键词
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资金
- North West Cancer Research Fund
- Cancer and Polio Research Fund
We report the synthesis of CoPt hollow nanostructures using a simple reduction method in aqueous solution in the presence of poly(methacrylic acid) pentaerythritol tetrakis (3-mercaptopropionate) (PMAA-PTMP) polymer or a mixture of O-[2-(3-mercaptopropionyl- amino) ethyl]-O'-methylpolyethylene glycol (PEG-SH) polymer and cysteine-cysteine-alanine-leucine-asparagine-asparagine (CCALNN) peptide ligands. The presence of the multi-thiol functional group of the ligands is essential for the formation of the hollow nanostructures and their perimeter size can be tuned within the range of 7-54 nm by changing peptide concentration or length of polymer. These hollow nanostructures are water-soluble and superparamagnetic at room temperature. They are stable in a wide range of pH from 1 to 10, high electrolyte concentration up to 2 M NaCl, and in cell culture medium which makes them have great potential to be utilised in biomedical applications.
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