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Morphological characterization of monolithic columns
Širc, Jakub ; Bosáková, Zuzana (advisor) ; Feltl, Ladislav (referee) ; Vacík, Jiří (referee)
I ntroduction Iligh-perfbnnance liquid chromatography (lIPLC) is currently one of the ntost common anal1'tica| soparation 1cclrtlic1ttcs' Duc to its ability to separate a widc range oÍ'a structurally rlil.Íěrent lorr- and high ntolecular oompourtds o1'polar as rvcll as non-polar nature, tIPLC found application in analylical laboratories in thc field ofrnedicine. plrarrrracy. biology. industry and the environmelt. Although the oonverttional packed colunrns are used in most of ths chronratographic applications, stationary phases in the Íbrnr of.particles have their limitations and disadvňtages. Quality o| the packed colutltns is irrÍluerrced by a rrunrber ol. paranreters' |or exanrple relatiňly conrplicated process ol.lilling I l |' Variances in the particle size and inegularities in their shape have á n!'galive inrpact on thc chrotratoBraphic process. Conrmon problems of the packed oolunrns are an inhomogeucous distribution ol the particles ol'various sizes and their settling in the column u,ith consequent greation of dcad voIuntes' FIighly uniÍbm spherical partic|es prcpared by suspension polynrerization can partlY solve stlnte Iintitations. hor,vever. disadvantagcs arising Íionr the prin|iple of tlrc packcd coluurns still rcntain. Prornising altcmative to thc paoked colunrns are monoliths. made of a block...
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Antimicrobial activity of selected Peruvian medicinal plants
Svobodová, Blanka ; Bosáková, Zuzana (referee)
In frame of this work, antimicrobial activity of ethanol extracts from 14 plants (belonging to 13 families) traditionally used in Peruvian folk medicine for the treatment of various infections was tested against 9 bacteria and 1 yeast by broth microdilution method. For 7 of which this is the first report of antimicrobial activity. Abuta grandifolia, Maytenus macrocarpa, Naucleopsis glabra and Pterocarpus rohrii inhibiting all tested microbial strains at MICs ranging from 0.25 to 8 mg/ml; 0.125 to 0.25 mg/ml; 0.0625 to 4 mg/ml and 0.25 to 16 mg/ml, respectively, were considered as potentially prospective sources of new bioactive substances.
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Analytical methods Used in the Studies on Chemical Ecology of Termites
Krasulová, Jana ; Hanus, Robert ; Sillam-Dusses, David ; Žáček, Petr ; Jiroš, Pavel ; Šobotník, Jan ; Kalinová, Blanka ; Bosáková, Z. ; Valterová, Irena
In this paper, I review our recent results on the trail-following communication in the Neotropical termite Glossotermes oculas (Serritermitidae) and the defensive chemistry of the African termite Psammotermes hybostoma (Rhinotermitidae). These findings belong to our current project focused on chemical ecology of critical termite genera from families Rhinotermitidae and Serritermitidae.
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