04-4-1133-2018/2023
 
Priority: 1
   
Status: Extended


Modern Trends and Developments in Raman Microspectroscopy
and Photoluminescence for Condensed Matter Studies

Leaders:     G.M. Arzumanyan
N. Kučerka

Participating countries and international organizations:
Armenia, Belarus, Bulgaria, Cuba, Egypt, Poland, Romania, Russia, Slovakia, Ukraine, Uzbekistan.

Issues addressed and main goals of research:
Fundamental and applied research in the field of spontaneous and nonlinear Raman microspectroscopy aimed at highly sensitive biosensing. Study of mechanisms and nature of surface-enhanced Raman scattering (SERS) taking into account the anomalous ratio of line intensities in the anti-Stokes and Stokes spectral regions. Development of ultralow-frequency Raman spectroscopy for biomedical purposes, including early diagnostics.

Expected results in the current year:
  • Development of a technique for simultaneous registration of Stokes and anti-Stokes components in SERS spectra.

  • Revealing a possible nonlinear dependence of SERS spectra on the pump power.

  • Detailed characterization of Raman spectra of liposomes with embedded proteins.

  • Search and identification of the Raman marker of NETosis for the purposes of early diagnostics.

  • Acquisition and registration of spectra using optics adapted for low-frequency Raman spectroscopy.
List of projects:
  Project Leaders Priority
(period of realisation)
1. BIOPHOTONICS G.M. Arzumanyan
N. Kučerka
Deputy:
K.Z. Mamatkulov
1   (2021-2023)

List of Activities
  Activity or Experiment Leaders
Status
      Laboratory or other
    Division of JINR
Main researchers
1. Study of the features of Stokes and anti-Stokes components of SERS spectra from analyte molecules in order to understand the processes of enhancement in SERS spectroscopy G.M. Arzumanyan
Data taking
  FLNP K.Z. Mamatkulov, I.A. Morkovnikov + 2 engineers
2. Determination of the range of pump intensities for recording reproducible aSt / St spectra G.M. Arzumanyan
K.Z. Mamatkulov
Data taking
  FLNP M.Yu. Vorobyeva, S.P. Marmakov + 1 engineer
3. Stabilization of membrane proteins and studies of their structure using lipodiscs/liposomes by Raman spectroscopy, electron microscopy and SANS G.M. Arzumanyan
N. Kučerka
Realization
Data taking
  FLNP K.Z. Mamatkulov, M.Yu. Vorobyeva, A. Damir
4. Testing the technique for obtaining Raman spectra of lipodiscs/liposomes with membrane proteins and “empty” lipodiscs/liposomes K.Z. Mamatkulov
N. Kučerka
Realization
  FLNP M.Yu. Vorobyeva, A. Damir + 2 engineers
5. Study of the influence of lipid environment on the structure of membrane protein G.M. Arzumanyan
N. Kučerka
Data taking
  FLNP K.Z. Mamatkulov, M.Yu. Vorobyeva, K.Sh. Voskanyan + 1 engineer + 2 laboratory assistant
6. Search for spectral / Raman markers of NETosis G.M. Arzumanyan
N. Kučerka
Realization
  FLNP K.Z. Mamatkulov, M.Yu. Vorobyeva, + 1 engineer + 2 laboratory assistant
7. Study of mechanisms of sterile activation of NETosis under UV radiation G.M. Arzumanyan K.Z. Mamatkulov
Data taking,    Realization
  FLNP M.Yu. Vorobyeva, K.Sh. Voskanyan, A. Damir
8. Mastering the technique of ultra-low frequency Raman spectroscopy ~ (5-10) cm-1. G.M. Arzumanyan
K.Z. Mamatkulov
Realization
  FLNP M.Yu. Vorobyeva, S.P. Marmakov + 2 engineers

 Collaboration

Country or International Organization

City Institute or laboratory
Armenia Yerevan Foundation ANSL
Belarus Minsk BSUIR
    SOL instruments
Bulgaria Sofia ISSP BAS
Cuba Havana InSTEC
Egypt Giza CU
Poland Krakow JU
Romania Cluj-Napoca INCDTIM
  Magurele NIMP
Russia Moscow GPI RAS
    LMPR MONIKI
    MSU
Slovakia Kosice UPJS
Ukraine Donetsk DonNU
Uzbekistan Jizzakh JSPI