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Institute of Physics and Biophysics

Institute of Physics and Biophysics offers programmes in Biophysics, Physics, Teaching of Physics, Measuring and Computer Technology, and Mechatronics. The research covers experimental physics (laser spectroscopy, plasma physics), computer simulations (aqueous solutions, solar physics) and animal voice recognition.


Homepage: http://ufy.prf.jcu.cz/en
Head of the Institute: doctor Petr Jelínek
E-mail: pjelinek@prf.jcu.cz

Programmes offered by Institute of Physics and Biophysics

Bachelor Master Doctoral
Biophysics Biophysics Biophysics
Teaching of Physics Teaching of Physics
Physics Physical Measurement and Modeling
Measuring and Computer Technology
Mechatronics (joint programme with Czech Technical University and Bosch company) Possible continuation in Mechatronics (at Czech Technical University)

Ph.D. study in Biophysics

Time-resolved spectroscopy

Research is focused on ultrafast excited-state processes, taking place at time scales of femtoseconds to nanoseconds, in a variety of systems, ranging from natural pigments (e.g. carotenoids), synthetic systems aimed at controlling electron and energy transfer reactions, to complex pigment-protein complexes responsible for light-driven reactions in various natural systems.

Molecular dynamics simulations

Molecular simulations provide detailed molecular-level understanding of the structure, function, and origin of experimental signals. Research focuses on computer simulations of fluids (water and aqueous solutions), phase equilibria, solid-liquid interface, mineral surfaces, and the interactions of biomolecules with surfaces.

Applied Plasma Physics

The laboratory aims at basic experimental research on the border of low-temperature plasma physics and material science to bring deep understanding of the growth of nanostructured films. Hence, the research is focused on deposition of thin functional films together with fundamental investigation of internal plasma process parameters. The growth mechanisms of different classes of nanostructured coatings ranging from metallic, metal-oxides to plasma polymers are intensively explored. 

Plasma astrophysics – solar plasma physics

For decades, the effect of solar coronal heating has remained one of the unsolved problems of solar plasma physics. Presently, two possible features are believed to be responsible for this interesting phenomenon – magnetic reconnection and MHD waves. We numerically calculate the MHD equations describing the plasma dynamics and investigate the plasma waves, e.g. wave trains, magnetoacoustic waves, in solar corona.

New markers for immunolocalization in scanning electron microscopy

Scanning electron microscopes (SEM) enable the use of low voltage for acceleration of primary electrons (>10kV), which is very important for the examination of frozen biological specimens, and the possibility to use signals like backscattered electrons (BSE), which are very sensitive to the metal nanoparticle detection in cell structure. Our project is focused on the identifying and testing of new nanoparticles (with a diameter below 10 nm) suitable as labels for multiple immunolocalization of molecules of interest in cell structure or as fiducial markers in correlative light and scanning electron microscopy.

Automatic recognition of individual birds by their voices

The identification of individual birds by ornithologists using ring girdling is invasive and has a negative influence on the behavior of the particular bird. Using computer voice recognition, individual birds can be identified non-invasively via voice recordings and recognition. The project‘s approach is based on the production of individual models using Gaussian Model Mixtures. The examined bird is the Chiffchaff (phylloscopus collybita). 

Example of results 

Publications:

PŘEDOTA M., MACHESKY M.L., WESOLOWSKI D.J. (2016): Molecular Origins of the Zeta Potential, Langmuir 32: 10189.

JELÍNEK P., KARLICKÝ M., MURAWSKI K. (2015): Electric current filamentation at a non-potential magnetic null-point due to pressure perturbation, The Astrophysical Journal 812: 105.

STALEVA H., KOMENDA J., SHUKLA M.K., ŠLOUF V., KAŇA R., POLÍVKA T. and SOBOTKA R. (2015): Mechanism of photoprotection in the cyanobacterial ancestor of plant antenna proteins. Nat. Chem. Biol. 11: 287–291.

STRAŇÁK V., HUBIČKA Z., ČADA M., DRACHE S., TICHÝ M. and HIPPLER R. (2014): Investigation of ionized metal flux in enhanced high power impulse magnetron sputtering discharges. J. Appl. Phys. 115: 153301. 

WANDROL P., VANCOVÁ M. and NEBESÁŘOVÁ J. (2014): New Method for Multiple Immunodetection on Resin Ultrathin Section in the Field Emission Scanning Electron Microscope. Microsc. Microanal. 20 (Suppl. S3):1266-1267.

 

Ph.D. Theses:

KESAN GÜRKAN (2017) Excited States of Carotenoids and Their Roles in Light Harvesting Systems.

ŠLOUF V. (2013) Protein control over carotenoid spectroscopy and functions.