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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) |
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| 1. | NANOBIOPHOTONICS | G.M. Arzumanyan N. Kucerka Deputy: K.Z. Mamatkulov |
1 (2018-2020) |
| List of Activities | |||||
| Activity or Experiment | Leaders | ||||
| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
