Infrared spectroscopic mapping of single nanoparticles and viruses at nanoscale resolution

被引：202

作者：

Brehm, Markus

Taubner, Thomas

Hillenbrand, Rainer

Keilmann, Fritz ^{[1
]}

机构：

[1] Max Planck Inst Biochem, D-82152 Munich, Germany

[2] Ctr Nanosci, D-82152 Munich, Germany

来源：

NANO LETTERS | 2006年 / 6卷 / 07期

关键词：

D O I：

10.1021/nl0610836

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We demonstrate that scattering near-field microscopy (s-SNOM) can determine infrared "fingerprint" spectra of individual poly( methyl methacrylate) nanobeads and viruses as small as 18 nm. Amplitude and phase spectra are found surprisingly strong, even at a probed volume of only 10(-20) l, and robust in regard to particle size and substrate. This makes infrared spectroscopic s-SNOM a versatile tool for chemical and-in the case of protein-secondary-structure identification.

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收藏

页码：1307 / 1310

页数：4

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