Symmetry analysis of Raman scattering mediated by neighboring molecules

Symmetry analysis of Raman scattering mediated by neighboring molecules.

Raman spectroscopy is a key technique for the identification and structural interrogation of molecules. It generally exploits changes in vibrational state within individual molecules which produce, in the scattered light, frequencies that are absent in the incident light. Considered as a quantum optical process, each Raman scattering event involves the concurrent annihilation and creation of ph...

Probing IrTe2 crystal symmetry by polarized Raman scattering

N. Lazarević,1 E. S. Bozin,2 M. Šćepanović,1 M. Opačić,1 Hechang Lei ( ),2 C. Petrovic,2 and Z. V. Popović1 1Center for Solid State Physics and New Materials, Institute of Physics Belgrade, University of Belgrade, Pregrevica 118, 11080 Belgrade, Serbia 2Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA (Received 7 April 20...

Symmetry-Forbidden Resonant Raman Scattering in Cu2O

STRUCTURAL ANALYSIS OF CYCLOSPORIN-A BY RAMAN TECHNIQUE

The Raman spectrum of cyclosporin-A has been recorded in the solid phase. The conformation of the molecule has been discussed on the basis of Raman data. It has been concluded that in agreement with X-ray data, cyclosporin-A molecule has an antiparallel P- pleated sheet conformation. It may have some reverse P- turn structure in what has been assigned to a random coil conformation.

Analysis of intracellular enzyme activity by surface enhanced Raman scattering.

Dysfunctional intracellular enzymatic activity is believed to be an underlying cause of a myriad of diseases. We present the first use of surface enhanced Raman scattering (SERS) as a detection technique capable of reporting intracellular activity of a specific enzyme. Careful choice of reagents allowed the preparation of high resolution cellular activity maps highlighting the specific conversi...