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04-4-1133--2018/2020
Priority:1
Status: Being concluded

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


Leaders:     G.M. Arzumanyan
N. Kucerka

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

Issues addressed and main goals of research:
Modern trends in Raman-based microspectroscopy providing ultrasensitive, highly-contrast and chemically selective tools for condensed matter studies of extremely low concentrations of analyte molecules are in the focus of the present research programme. Detection and identification of a single molecule represent the ultimate sensitivity limit in chemical analysis. Tracking and counting of single molecules, characterizing their chemical structures offer far-reaching opportunities in basic and applied research. Therefore, vibrational spectroscopy, such as Raman spectroscopy, as a non-invasive, label-free technique, is a powerful and preferred tool for rareorganic/biological molecule studies. To achieve this goal, two enhanced options of Raman scattering, namely CARS (coherent antiStokes Raman spectroscopy) and SERS (surface-enhanced Raman spectroscopy) will be combined to attain such an ultrasensitive level of detection poorly studied and known as SECARS surface-enhanced CARS.
The other modern component of the theme is the study of photo- and upconversion luminescence based on promising core-shell nanostructures. In recent years, core-shell nanoparticles are at the leading edge of hot research topics and offer a wide range of applications in biomedicine, optics, environmental science, materials, and so forth, due to their excellent properties such as versatility, tunability and stability. The core-shell nanomaterials containing noble metals are plasmonic nanomaterials. They can be employed for contrast imaging, several biomedical applications, etc.

Expected results in the current year:
  • Systematic experiments on SECARS spectroscopy and intensity mapping with picosecond laser pulses.

  • Measurement and detection of extremely low concentrations of organic molecules with the use of SERS and SECARS - setting up a method for microspectroscopy of single molecules.

  • Comparison of SERS and SECARS spectra and intensity maps of light scattered from organic reporter molecules.

  • The final stage in the synthesis of core-shell nanostructures: NaYF4:Yb 3+, Er 3+,Tm 3+@SiO2 and testing their effectiveness in biomedicine.

  • Studies of conformational changes in phospholipids under the influence of cholesterol and melatonin using Raman and IR spectroscopy.
List of projects:
  Project Leader Priority
(period of realisation)
1. NANOBIOPHOTONICS G.M. Arzumanyan
N. Kucerka
Deputy:
K.Z. Mamatkulov
1   (2018-2020)

List of Activities
  Activity or Experiment Leaders
Status
      Laboratory or other
    Division of JINR
Main researchers
1. Development of scientific and
technical requirements to upgrade
the "CARS" microspectrometer for
ultrasensitive SECARS modality
G.M. Arzumanyan
Upgrade
  FLNP K.Z. Mamatkulov, I.A. Morkovnikov
2. Study of spectroscopic and
plasmonic characteristics of
SERS-active substrates based on
silver/gold nanoparticles with
different configurations
G.M. Arzumanyan
N. Kucerka
Data taking
  FLNP K.Z. Mamatkulov, M.Ju. Vorobjeva, A.S. Marchenko
3. Systematic experiments on
SECARS microspectroscopy with
picosecond laser pulses at
SERS-active substrates single
molecule spectroscopy
G.M. Arzumanyan
K.Z. Mamatkulov
Realization
Data taking
  FLNP M.Ju. Vorobjeva, A.S. Marchenko, S.K. Rudnikh, I.A. Morkovnikov
4. Revealing the influence of
cholesterol and melotanin on the
structure of lipid bilayer using
the Raman spectroscopy method
G.M. Arzumanyan
N. Kucerka
Data taking
  FLNP K.Z. Mamatkulov, M.Ju. Vorobjeva, K.Sh. Voskanyan, A.S. Marchenko, S.K. Rudnikh
5. Study of spectral-structural
characteristics of upconversion
phosphors based on core-shell
type nanostructures
G.M. Arzumanyan
N. Kucerka
Data taking
  FLNP K.Z. Mamatkulov, A.S. Marchenko, M.Ju. Vorobjeva, K.Sh. Voskanyan
6. Test application of core-shell
nanostructured phosphors in
biomedicine
G.M. Arzumanyan
N. Kucerka
Realization
  FLNP K.Z. Mamatkulov, M.Ju. Vorobjeva, A.S. Marchenko, K.Sh. Voskanyan, S.K. Rudnikh
7. Development of a united optical
platform concept for contrast and
selective imaging by nonlinear
Raman microscopy and
upconversion luminescence.
G.M. Arzumanyan
Realization
  FLNP K.Z. Mamatkulov, A.S. Marchenko
8. Broadening the scope of research
activities at the "CARS"
microscope as a "user-friendly
facility"
G.M. Arzumanyan
N. Kucerka
Realization
  FLNP K.Z. Mamatkulov, M.Ju. Vorobjeva

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 Cairo EPRI
Latvia Riga ISSP UL
Poland Wroclaw UW
Poznan AMU
Romania Cluj-Napoca INCDTIM
Russia Moscow GPI RAS
Slovakia Kosice UPJS
Ukraine Donetsk DonNU

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