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National Repository of Grey Literature 4 records found  Search took 0.01 seconds. 
Multimode optical fiber based endoscopy
 Jákl, Petr ; Tučková, Tereza ; Pikálek, Tomáš ; Stibůrek, Miroslav ; Ondráčková, Petra ; Cifuentes, Angel S. ; Šiler, Martin ; Uhlířová, Hana ; Traegaardh, Johanna ; Čižmár, Tomáš
Optical microscopy is a technique for microworld investigation using light waves scattered on particles in sample space. Its main disadvantage in the area of medicine, microbiology and neurology is its low penetration depth - it is very difficult to image structures deeper than approximately 1 mm inside tissue. Conventional endoscopes use refractive or GRIN lens with cross-section of several milimeters in diameter. Therefore, it is necessary to find less invasive probes to perform imaging in living organisms. Favourable alternative is to use multimode optical fiber probe with 100 micrometer diameter. This approach, however, requires advanced shaping of the wavefront in order to achieve diffraction limited imaging.
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Peptide profilig of tryptic digests of water soluble proteins from Bacillus thuringiensis - transgenic and non-transgenic maize species by capillary zone electrophoresis
 Sázelová, Petra ; Kašička, Václav ; Ibanez, E. ; Cifuentes, A.
The tryptic digests of water-soluble proteins from transgenic Aristis-Bt and non-transgenic Aristis and Coventry maize varieties were analyzed by capillary zone electrophoresis (CZE) with UV-absorption detection at 206 nm in several acidic background electrolytes. Resolved tryptic peptides were characterized by effective electrophoretic mobilities and corrected peak areas. Some significant qualitative and quantitative differences in CZE-UV profiling of tryptic peptides were found between Aristis Bt and Aristis or between Aristis and Coventry varieties.
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Extraction of water-soluble proteins from Bt-transgenic and non-transgenic maize species and tryptic digests peptide profiling by capillary electrophoresis
 Sázelová, Petra ; Kašička, Václav ; Ibanez, E. ; Cifuentes, A.
Water-soluble proteins extracted from Bt-transgenic and non-transgenic maize varieties were digested by trypsin and analyzed by capillary zone electrophoresis (CZE) in several acidic background electrolytes. The found qualitative and quantitative differences among CZE profiles of tryptic peptide maps can be potentially used to differentiate transgenic and non-transgenic maize species.
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Analysis of water soluble proteins and peptides from Bt transgenic and non-transgenic maize varieties by capillary electrophoresis
 Sázelová, Petra ; Kašička, Václav ; Ibanez, E. ; Cifuentes, A.
Water-soluble proteins and peptides extracted from the transgenic Aristis-Bt and non-transgenic Aristis and Coventry maize varieties were analyzed by capillary zone electrophoresis (CZE). The found qualitative and quantitative differences among CZE profiles of these protein/peptide extracts from transgenic and non-transgenic maize species can be potentially used to detect transgenic maize in foods.
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