期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 129, 期 21, 页码 6708-+出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja071107q
关键词
-
We show that label-free detection of picomole amounts of the four nucleobases, respectively, adsorbed at atomically smooth Au(111) is straightforward with tip-enhanced Raman (TER) spectroscopy. In addition to TER spectra that allow identification of the corresponding DNA base, topographic images of the nanometer-sized sample can be obtained. Only 130 adenine molecules present in the enhanced field region in the tip-sample gap are sufficient to record the adenine fingerprint, that is, the Raman band of the characteristic ring-breathing mode at 734 cm(-1).
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