期刊
BIOCONJUGATE CHEMISTRY
卷 21, 期 8, 页码 1413-1416出版社
AMER CHEMICAL SOC
DOI: 10.1021/bc100160k
关键词
-
类别
资金
- CIFAR
- NSERC
- CFI
- CSACS
A straightforward strategy to stably anchor one or more gold nanoparticles (AuNPs) at both the internal and terminal positions of single-stranded DNA is presented. Discrete DNA-AuNP conjugates arc isolated using a noncovalent extension strand strategy, that helps to resolve prepared species by agarose gel electrophoresis (AGE). These are used to assemble well-defined AuNP squares and rectangles. Two complementary bis-AuNP-labeled DNA conjugates are then prepared. One of these places two smaller (5 nm) AuNPs at defined internal positions within a DNA strand, and the other places two larger (13 nm) AuNPs at each of its terminal positions. We show the self-assembly of these bis-AuNP conjugates into a tapered tetrameric gold nanoparticle antenna structures of direct relevance to engineered hot spots and surface enhanced Raman scattering (SERS) substrates.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据