Journal
NANOTECHNOLOGY
Volume 22, Issue 27, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/22/27/275605
Keywords
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Funding
- National Natural Science Foundation of China [60877024, 60708024]
- Specialized Research Fund for the Doctoral Program of Higher Education [20090092110015, 20090092120022]
- Scientific Research Foundation of the Graduate School of Southeast University
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To prepare biologically available Zn-based NCs in aqueous solution, we herein reported the synthesis of aqueous Cu:ZnSe/ZnS NCs with internally doped aqueous Cu: ZnSe NCs as the core template. Due to the dual protection of Cu impurities by the ZnSe core and ZnS shells, the as-prepared Cu: ZnSe/ZnS NCs show excellent stability in the open air, which overcomes the intrinsic instability of traditional aqueous Cu: ZnSe NCs. The as-prepared Cu: ZnSe/ZnS NCs possess extremely good stability, good biocompatibility and lower cytotoxicity, and thus can be used as a promising candidate for fluorescent NC-based biological applications.
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