Počet nalezených dokumentů: 902
Publikováno od do

Development of portable ultra-high performance liquid chromatograph
Šesták, Jozef; Gogaľová, Zuzana; Lunerová, K.
2022 - anglický
Recently we have successfully proved the concept of experimental portable liquid chromatograph which utilizes a simple hydraulic scheme and a universal optical detector capable of simultaneous absorbance and fluorescence monitoring. Here we present some latest improvements of our concept. Klíčová slova: portable liquid chromatograph; miniaturization; microcolumn liquid chromatography Plné texty jsou dostupné v digitálním repozitáři Akademie Věd.
Development of portable ultra-high performance liquid chromatograph

Recently we have successfully proved the concept of experimental portable liquid chromatograph which utilizes a simple hydraulic scheme and a universal optical detector capable of simultaneous ...

Šesták, Jozef; Gogaľová, Zuzana; Lunerová, K.
Ústav analytické chemie, 2022

Multi-cationic aminopyrene-based tag for oligosaccharide analysis by capillary electrophoresis with laser-induced fluorescence detection
Smolková, Denisa; Duša, Filip; Čmelík, Richard; Lavická, Jana
2022 - anglický
We present further optimization of the labeling method with a new multi-cationic aminopyrene-based tag, APTMP (4,4’,4’’-(8-aminopyrene-1,3,6-trisulfonyl)tris(1-methylpiperazine) in order to achieve higher resolution and sensitivity of CE/LIF analysis of APTMP labeled oligosaccharides. Klíčová slova: oligosaccharides labeling; CE/LIF; APTMP Plné texty jsou dostupné v digitálním repozitáři Akademie Věd.
Multi-cationic aminopyrene-based tag for oligosaccharide analysis by capillary electrophoresis with laser-induced fluorescence detection

We present further optimization of the labeling method with a new multi-cationic aminopyrene-based tag, APTMP (4,4’,4’’-(8-aminopyrene-1,3,6-trisulfonyl)tris(1-methylpiperazine) in order to achieve ...

Smolková, Denisa; Duša, Filip; Čmelík, Richard; Lavická, Jana
Ústav analytické chemie, 2022

The map of quercetin and its derivatives occurence in parts of onion (Allium cepa L.) varieties
Benešová, K.; Lojková, L.; Kudláčková, Barbora
2022 - anglický
Determination of quercetin and its derivatives in dependency on the onion variety and the part from which it was extracted. Klíčová slova: onion; quercetin; pressurized liquid extraction Plné texty jsou dostupné v digitálním repozitáři Akademie Věd.
The map of quercetin and its derivatives occurence in parts of onion (Allium cepa L.) varieties

Determination of quercetin and its derivatives in dependency on the onion variety and the part from which it was extracted.

Benešová, K.; Lojková, L.; Kudláčková, Barbora
Ústav analytické chemie, 2022

Synthesis of biobased ionic liquids from the choline for lignin derivatization
Souvenir Zafindrajaona, Mahasoa-Salina
2022 - anglický
The presentation will be dedicated to the description of the syntheses and the characterization of the new bolaform ILs. The further work which will be realized in Prague will be also presented and discussed in relation to the lignin depolymerisation purpose. Klíčová slova: lignin; depolymerisation; ionic liquids Plné texty jsou dostupné v digitálním repozitáři NUŠL
Synthesis of biobased ionic liquids from the choline for lignin derivatization

The presentation will be dedicated to the description of the syntheses and the characterization of the new bolaform ILs. The further work which will be realized in Prague will be also presented and ...

Souvenir Zafindrajaona, Mahasoa-Salina
Ústav chemických procesů, 2022

The study on stability of ionanofluids, change in heat capacity of ionanofluids over a long period of time
Parmar, Nirmal
2022 - anglický
These works showed that, by adding well defined nanoparticles into ionic liquids, it is possible to tune or/and enhance\ntheir thermophysical properties and make them more suitable for electrical and thermal energy storage, and heat transfer applications. Klíčová slova: nanoparticles; ionic liquids; ionanofluids Plné texty jsou dostupné v digitálním repozitáři NUŠL
The study on stability of ionanofluids, change in heat capacity of ionanofluids over a long period of time

These works showed that, by adding well defined nanoparticles into ionic liquids, it is possible to tune or/and enhance\ntheir thermophysical properties and make them more suitable for electrical and ...

Parmar, Nirmal
Ústav chemických procesů, 2022

Utilization of solid sorbents for high temperature removal of halogenated compounds from pyrolysis of waste plastic
Šrámek, Vít
2022 - anglický
This work focuses on high temperature removal of halogenated compounds in model mixture with hydrocarbons and other compounds. The study was performed in laboratory apparatus under controlled temperature and gaseous mixture composition.\n Klíčová slova: halogenated compounds; solid sorbents; pyrolysis of waste plastic Plné texty jsou dostupné v digitálním repozitáři NUŠL
Utilization of solid sorbents for high temperature removal of halogenated compounds from pyrolysis of waste plastic

This work focuses on high temperature removal of halogenated compounds in model mixture with hydrocarbons and other compounds. The study was performed in laboratory apparatus under controlled ...

Šrámek, Vít
Ústav chemických procesů, 2022

Deoxyfluorinated N-acetyllactosamines as carbohydrate-based probes for human galectins
Kurfiřt, Martin
2022 - anglický
This work is focused on a detailed NMR investigation of human galectins via a complete series of mono-deoxyfluorinated Nacetyllactosamine probes 1–6, which were prepared previously in our laboratory.3 Advanced 19F NMR T2-filter technique enabled the identification of hydroxyl groups essential for the interaction with varioushGals, and permitted to compare hGals in terms of the importance of these key hydroxyl groups in the recognition events. Furthermore, the library was also investigated by various NMR techniques such as 19F EXSY, STD and 15N CSP to reveal the molecular origin of recognition events.\n Klíčová slova: human galectins; NMR techniques; selective inhibitors Plné texty jsou dostupné v digitálním repozitáři NUŠL
Deoxyfluorinated N-acetyllactosamines as carbohydrate-based probes for human galectins

This work is focused on a detailed NMR investigation of human galectins via a complete series of mono-deoxyfluorinated Nacetyllactosamine probes 1–6, which were prepared previously in our laboratory.3 ...

Kurfiřt, Martin
Ústav chemických procesů, 2022

Hybrid organometallic galectin inhibitors
Hamala, Vojtěch
2022 - anglický
Galectins are lectin-type proteins defined by their sequence homology and the ability to bind β-galactosides. Human galectin-1 (Gal-1) and galectin-3 (Gal-3) are involved in tumor progression. Elevated Gal-1 levels are reported for many tumor tissues and Gal-1 contributes to tumor progression including cell migration and tumor immune escape.\nGal-3 is characteristically overexpressed in many cancers and an elevated Gal-3 level is associated with increased invasiveness, metastatic spreading, immunosuppression and angiogenesis. Galectins are also implicated in progression of serious diseases other than cancer e.g., cardiovascular ones, diabetes mellitus, fibrosis, and others. These\nproperties make galectins promising therapeutic targets.\n Klíčová slova: organometallic compounds; galectin inhibitors; glycomymetics Plné texty jsou dostupné v digitálním repozitáři NUŠL
Hybrid organometallic galectin inhibitors

Galectins are lectin-type proteins defined by their sequence homology and the ability to bind β-galactosides. Human galectin-1 (Gal-1) and galectin-3 (Gal-3) are involved in tumor progression. ...

Hamala, Vojtěch
Ústav chemických procesů, 2022

The Story of Teamwork and the Birth of the FFP* (Filter Backpack)
Fraenkl, M.; Krbal, M.; Houdek, J.; Zmrhalová, Z.; Prokeš, B.; Hejda, P.; Slang, S.; Přikryl, J.; Ondráček, Jakub; Makeš, Otakar; Kostyk, Juraj; Nasadil, P.; Malčík, P.; Ždímal, Vladimír; Vlček, M.
2022 - anglický
Soon after the outbreak of the coronavirus crisis in the Czech Republic and the first lockdown (2020), we enthusiastically decided to fight the coronavirus with scientific \nmeans. Originally materials engineers, we decided to develop an effective protective respiratory device, which was in short supply at the time. We soon found out, that every textile material (handkerchief 10%) has a certain ability to catch an aerosol particle carrying the corona virus, the slower the aerosol particle (d<300 nm) passes through the filter, the greater the chance it has of being caught, with the thickness of the filter, the amount of passed particles decreases exponentially and breathing resistance increases linearly. On this basis, we decided to experiment with a large-area filter placed on the user's back (it wouldn't fit anywhere else) and commercially available textile filter material. Klíčová slova: COVID-19; filtration efficiency; regeneration Plné texty jsou dostupné v digitálním repozitáři NUŠL
The Story of Teamwork and the Birth of the FFP* (Filter Backpack)

Soon after the outbreak of the coronavirus crisis in the Czech Republic and the first lockdown (2020), we enthusiastically decided to fight the coronavirus with scientific \nmeans. Originally ...

Fraenkl, M.; Krbal, M.; Houdek, J.; Zmrhalová, Z.; Prokeš, B.; Hejda, P.; Slang, S.; Přikryl, J.; Ondráček, Jakub; Makeš, Otakar; Kostyk, Juraj; Nasadil, P.; Malčík, P.; Ždímal, Vladimír; Vlček, M.
Ústav chemických procesů, 2022

Chiral membrane prepared by electrostatic modification of ionexchange membrane
Čížek, Jan
2022 - anglický
In this work, a simple and effective method for chiral membrane preparation is demonstrated, involving electrostatic interaction between negatively charged sulfobutylether-β-cyclodextrin (SBE-β-CD) as a chiral selector and a commercially available anionexchange membrane.The modified home-made chiral membrane was tested in diffusion cells to characterize its enantioselectivity towards D,L–Tryptophan. We demonstrated in our work that L–Tryptophan is preferentially absorbed into the membrane, while D–Tryptophan\nis transported through the membrane with enantiomeric excess exceeding 80%. To increase the permeation rate of the membrane, thinner ion-exchange membrane substrate with higher degree of swelling is proposed.\n Klíčová slova: chiral membrane; diffusion cells; electrostatic interaction Plné texty jsou dostupné v digitálním repozitáři NUŠL
Chiral membrane prepared by electrostatic modification of ionexchange membrane

In this work, a simple and effective method for chiral membrane preparation is demonstrated, involving electrostatic interaction between negatively charged sulfobutylether-β-cyclodextrin (SBE-β-CD) as ...

Čížek, Jan
Ústav chemických procesů, 2022

O službě

NUŠL poskytuje centrální přístup k informacím o šedé literatuře vznikající v ČR v oblastech vědy, výzkumu a vzdělávání. Více informací o šedé literatuře a NUŠL najdete na webu služby.

Vaše náměty a připomínky posílejte na email nusl@techlib.cz

Provozovatel

http://www.techlib.cz

Facebook

Zahraniční báze