Synthesis and characterization of fluorescent magnetic Fe3O4/CdTe@SiO2-NH-FA nanoprobe

被引：4
|
作者：
Wang, Meiping [1 ]
Deng, Miao [1 ]
机构：
[1] Chengdu Univ Technol, Coll Mat & Chem & Chem Engn, Chengdu 610059, Peoples R China
来源：
MATERIALS LETTERS | 2022年 / 309卷
关键词：
Fluorescent magnetic nanocomposites; CdTe quantum dots; Folic acid; TARGETED DRUG-DELIVERY; NANOPARTICLES; SEPARATION;
D O I：
10.1016/j.matlet.2021.131358
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, fluorescent magnetic Fe3O4/CdTe@SiO2-NH-FA (FCSN-FA) nanoprobe was synthesized by a simple method. First, Fe3O4 nanoparticles and TGA-stabilized CdTe QDs formed Fe3O4/CdTe core, and the Fe3O4/CdTe core was coated with amorphous silica. Amino groups (-NH2) of 3-aminopropyltriethoxysilane (APTES) was modified on the surface of the amorphous silica, forming Fe3O4/CdTe@SiO2-NH2 (FCSN) nanocomposite. The carboxyl group (-COOH) of folic acid (FA) can covalently conjugate with the -NH2 to form Fe3O4/CdTe@SiO2 NH-FA nanopmbe. The results show that the FCSN-FA nanoprobes have a uniform size, excellent fluorescent and superparamagnetic properties, indicating that the FCSN-FA nanoprobes have potential biomedical applications.
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页数：4
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