Cystine-capped CdSe@ZnS nanocomposites: mechanochemical synthesis, properties, and the role of capping agent

被引:22
作者
Balaz, Matej [1 ]
Balaz, Peter [1 ]
Tjuliev, Georgi [2 ]
Zubrik, Anton [1 ]
Jesus Sayagues, Maria [3 ]
Zorkovska, Anna [1 ]
Kostova, Nina [2 ]
机构
[1] Slovak Acad Sci, Inst Geotech, Kosice, Slovakia
[2] Bulgarian Acad Sci, Inst Catalysis, Sofia, Bulgaria
[3] CSIC, Inst Mat Sci Seville, Seville 41092, Spain
关键词
QUANTUM DOTS; NANOCRYSTALS; CYSTEINE; NANOPARTICLES; CYTOTOXICITY;
D O I
10.1007/s10853-012-7029-3
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Cystine-capped CdSe@ZnS nanocomposites were synthesized mechanochemically with the aim to prepare a material which could be used in medicine for biosensing applications. Although synthesized CdSe@ZnS nanocomposites were capped with l-cysteine, cystine was formed from l-cysteine during the milling process. It was proven that water plays the key role in this oxidative transformation. The novel material was characterized by the complex of physico-chemical methods (FTIR, XPS, SEM, EDX, surface area measurements) and CHNS analysis. The leakage of Cd2+ and Zn2+ ions into physiological solution was also studied.
引用
收藏
页码:2424 / 2432
页数:9
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