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Sample preparation for single cell analysis
Adamová, Eva ; Basova, E. Y. ; Potáčová, Anna ; Foret, František ; Matalová, Eva ; Klepárník, Karel
Development of sensitive, miniaturized and fast methods aims to reliable analyze even small amounts of samples. Micromanipulation systems such as laser capture microdissection enable to collect just single cells from cell suspensions or tissue samples. One option for further analysis is the bioluminescence reaction based on luciferin/luciferase conversion. This approach was used for detection of active caspases, caspase-3/7. Droplets based microfluidic systems provide benefits in biological, pharmaceutical and chemical research.
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Low-cost 3D-printed fluorescence detector for capillary electrophoresis
Přikryl, Jan ; Foret, František
We have verified the possibility of Fused Deposition Modeling (type of additive manufacturing) for lab-made construction of inexpensive fluorescence detector for capillary electrophoresis using commercially available optical components. Sensitivity of fabricated and assembled detection system was tested by fluorescein solutions. Limits of detection were determined for several tested arrangements.
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Polydopamine coated capillaries for CE separations
Partyka, Jan ; Foret, František ; Vu, T. T. ; Sudor, J.
We have tested CE separation of selected samples in capillaries with polydopamine modified surface. The capillaries were modified by polydopamine or polydopamine with an additive. The polydopamine coating with additive represents a simple and effective procedure for capillary alteration by another modificator such as hydroxyethyl cellulose, hydroxypropyl cellulose etc. In this work, we represent separation data from PrinCE system with UV detection for peptides, proteins and oligosaccharides labeled by 2-aminobenzoic acid.
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IEF and HPLC-based methods for efficient bacterial characterization
Kubesová, Anna ; Šalplachta, Jiří ; Moravcová, Dana ; Horká, Marie
Pectobacterium and Dickeya species are responsible for blackleg and tuber soft rot diseases on crop and ornamental plants. Recently, a more virulent and aggressive Dickeya type of E. chrysanthemi was described and it becomes serious problem for potato production in Europe. In this study, we suggest procedures using two commonly available laboratory techniques, gel isoelectric focusing and liquid chromatography, for differentiation and characterization of Pectobacterium and Dickeya species. We have confirmed that fingerprinting approach can be used for bacterial differentiation, which can be further used in rapid diagnosis of plant disease.
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