DNA assembly of silicon quantum dots/gold nanoparticle nanocomposites

被引：19
|
作者：
Inoue, Asuka [1 ]
Sugimoto, Hiroshi [1 ]
Yaku, Hidenobu [2 ]
Fujii, Minoru [1 ]
机构：
[1] Kobe Univ, Grad Sch Engn, Dept Elect & Elect Engn, Nada Ku, Kobe, Hyogo 6578501, Japan
[2] Panasonic Corp, Adv Res Div, 3-4 Hikaridai,Seika Cho, Kyoto 6190237, Japan
来源：
RSC ADVANCES | 2016年 / 6卷 / 68期
关键词：
ENE CLICK CHEMISTRY; DEPENDENT PHOTOLUMINESCENCE; OPTICAL-PROPERTIES; SI NANOCRYSTALS; CANCER-CELLS; DOTS; FLUORESCENT; LUMINESCENCE; LABELS; ENHANCEMENT;
D O I：
10.1039/c6ra13565j
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Silicon quantum dots (Si-QDs) dispersible in water and exhibiting bright near infrared (NIR) luminescence are a very attractive nano-light-emitter usable in bioimaging and biosensing. Here, we demonstrate the fabrication of NIR luminescent nanocomposites composed of Si-QDs and gold nanoparticles (Au-NPs) by DNA hybridization. We first develop processes to functionalize the surface of Si-QDs with different types of silane coupling agents without notably affecting the water solubility and the luminescence properties, and then conjugate the functionalized Si-QDs with single-stranded DNA (ssDNA). DNA hybridization with a Au-NP with complementary ssDNA results in the formation of Si-QDs/Au-NP nanocomposites.
引用
收藏
页码：63933 / 63939
页数：7
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