Sensor Technics and Biophysics

Laboratory of electron microanalysis

Y Ing. Dušan Kopecký, Ph.D.
b kopeckyd@vscht.cz
Y +420220 44 3351

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The laboratory is engaged in microanalysis of surfaces and structures of materials in space and energy with high resolution. The basic employed method is scanning electron microscopy (SEM) with termionic and Schottky emitters and detectors of the secondary (SE) and backscattered electrons (BSE). Additional method is scanning transmission electron microscopy (STEM) for study of internal morphology of nanostructures using transmitted electrons. In the field of energy analysis, the laboratory deals mainly with energy dispersive X-ray spectroscopy (EDS). Laboratory research is oriented especially towards microanalysis of electrically conductive materials for organic electronics.

Laboratory of sensors

Y Doc. Ing. Dr. Martin Vrňata
b vrnatam@vscht.cz
e +420220 44 3383

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Laboratory of sensors studies sensitive materials for chemical sensors (new types of organic semiconductors, including their nano- and microstructures), methods for preparation of experimental chemical gas sensors (thin-layer deposition technologies) and measures their electrophysical properties. The aim of the research is development of new types of highly sensitive sensors based on organic materials such as conducting polymers or phthalocyanines which should be applied in the fields of chemical conductivity sensors, sensor arrays or organic electronics. These devices are developed for the detection of toxic gases, the control of food quality and for the field of medical applications.

Laboratory of low-temperature plasma

Y Doc. Ing. Vladimír Scholtz, Ph.D.
b scholtzv@vscht.cz
e +4202204433037

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Has your apple or carrot got moldy? Do you have a resistant microbial contamination? Does a biofilm grow in your corner? Do you have skin mycosis or herpes? Do you have a skin tumor? And for all of these the low-temperature plasma could be a solution in the near future!

Low temperature plasma, i.e. cold ionized gas, operate stressful on microorganisms and leads to the destruction or significant changes in metabolic pathways, such as inactivation (killing) of bacteria, yeasts and other micro-organisms, to change the germination and growth of fungal (mold) spores , or to induce the apoptosis (programed cell death) of tumor cells. It is typically generated by electrical discharges.

In our laboratory we concern on both basic and applied research, especially physical properties of electrical discharges, microbial decontamination (destroying microorganisms) on surfaces and in volumes of liquids, inactivation of prions, the generation of active particles in exposed water, pathway in yeast leading to apoptosis, disinfection of skin, treatment of skin fungal infections or microbial decontamination of food packaging.