Measurement conditions:
Laser 632.8 nm, power on the sample – below 1 mW,
AFM – true non-contact mode, tapping amplitude 7 nm, exposure 0.1 sec/point,
AFM tip – gold coated.
Download Transmission TERS with AIST-NT AFM

* Data obtained with the DEMO system at Tokyo Instruments Inc. office (Tokyo).

Virus like particles (VLP) formed by coat protein  Alternanthera mosaic potex virus (AltMV) in the absence of RNA. Sample courtesy of Prof. O. V. Karpova and Dr. M. V. Arhipenko, Lomonosov Moscow State University, Faculty of Biology.

Ribonucleoprotein complexes in the form of  single tailed particles ( STPs) formed from RNA and coat  protein of Potato virus X as a result of the in vitro reconstruction.  Sample courtesy of Prof. O. V. Karpova and Dr. M. V. Arhipenko, Lomonosov Moscow State University, Faculty of Biology.

Alternanthera mosaic potex virus.
Sample courtesy of Prof. O. V. Karpova and Dr. M. V. Arhipenko, Lomonosov Moscow State University, Faculty of Biology.

Plasmid DNA. Semicontact mode in buffer solution.