No (1138)
Yes (946)
Number of found documents:
2084
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to
Synthesis of biobased ionic liquids from the choline for lignin derivatization
Souvenir Zafindrajaona, Mahasoa-Salina
2022 - English
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.
Keywords:
lignin; depolymerisation; ionic liquids
Available in a digital repository NRGL
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 ...
The study on stability of ionanofluids, change in heat capacity of ionanofluids over a long period of time
Parmar, Nirmal
2022 - English
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.
Keywords:
nanoparticles; ionic liquids; ionanofluids
Available in a digital repository NRGL
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 ...
Utilization of solid sorbents for high temperature removal of halogenated compounds from pyrolysis of waste plastic
Šrámek, Vít
2022 - English
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
Keywords:
halogenated compounds; solid sorbents; pyrolysis of waste plastic
Available in a digital repository NRGL
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 ...
Deoxyfluorinated N-acetyllactosamines as carbohydrate-based probes for human galectins
Kurfiřt, Martin
2022 - English
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
Keywords:
human galectins; NMR techniques; selective inhibitors
Available in a digital repository NRGL
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 ...
Hybrid organometallic galectin inhibitors
Hamala, Vojtěch
2022 - English
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
Keywords:
organometallic compounds; galectin inhibitors; glycomymetics
Available in a digital repository NRGL
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. ...
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 - English
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.
Keywords:
COVID-19; filtration efficiency; regeneration
Available in a digital repository NRGL
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 ...
Přehled technologií pro zpracování kalů a recyklaci fosforu
Pohořelý, Michael; Moško, Jaroslav; Hušek, Matěj; Šyc, Michal
2022 - Czech
Tato zpráva se zabývá problematikou nakládání s čistírenskými kaly. V první části popisuje výhody a překážky pro využívání čistírenských kalů pro hnojivové účely. V další části se zpráva zabývá popisem a zhodnocením čtyř relevantních způsobů nakládání s kaly, tj. přímé zemědělské použití, kompostování, spalování a pyrolýza., včetně zhodnocení jejich výhod a nevýhod. This report examines the management of sewage sludge. The first part describes the advantages and obstacles to the use of sewage sludge for fertiliser purposes. The later part describes and evaluates four relevant sewage sludge management options, i.e., direct agricultural use, composting, incineration and pyrolysis, including an assessment of their advantages and disadvantages.
Keywords:
sewage sludge; sludge management; phosphorus
Available at various institutes of the ASCR
Přehled technologií pro zpracování kalů a recyklaci fosforu
Tato zpráva se zabývá problematikou nakládání s čistírenskými kaly. V první části popisuje výhody a překážky pro využívání čistírenských kalů pro hnojivové účely. V další části se zpráva zabývá ...
Chiral membrane prepared by electrostatic modification of ionexchange membrane
Čížek, Jan
2022 - English
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
Keywords:
chiral membrane; diffusion cells; electrostatic interaction
Available in a digital repository NRGL
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 ...
Continuous production of 1‑methyl‑10α‑methoxydihydrolysergic acid methyl ester via microreactors
Jaklová, Natalie
2022 - English
The present contribution addresses the influence of reaction conditions on the course of the reaction in a microfluidic\nreactor. The feasibility of reaction in microchip reactor, optimalization of reaction condition, the scaling-up and effect of sonication to selectivity and conversion of the reaction will be presented.
Keywords:
microfluidic reactor; conversion; industrial synthesis
Available in a digital repository NRGL
Continuous production of 1‑methyl‑10α‑methoxydihydrolysergic acid methyl ester via microreactors
The present contribution addresses the influence of reaction conditions on the course of the reaction in a microfluidic\nreactor. The feasibility of reaction in microchip reactor, optimalization of ...
Slit geometry microreactor for light induced photocatalysis with graphite carbon nitride thin films
Dolai, Susmita
2022 - English
We have demonstrated a facile, controllable, scalable and efficient new method for synthesizing carbon nitride materials with morphology and optimizing their catalytic performance in microreactor and cuvette. History and different structures and classification of carbon nitride materials also properly explained in this review. Different organic pollutant degradation and hydrogen generation performance are shown for carbon nitride materials, as per as their catalytic activities and properties.
Keywords:
microreactor; carbon nitride; photocatalysis
Available in a digital repository NRGL
Slit geometry microreactor for light induced photocatalysis with graphite carbon nitride thin films
We have demonstrated a facile, controllable, scalable and efficient new method for synthesizing carbon nitride materials with morphology and optimizing their catalytic performance in microreactor and ...
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