Browsing by Author "Novotný Vít"
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- ItemA poly(3-hydroxybutyrate)-chitosan polymer conjugate for the synthesis of safer gold nanoparticles and their applications(Royal Society of Chemistry, 2018-01-01) Silvestri Daniele; Waclawek Stanislaw Witold; Sobel Bartłomiej; Torres Mendieta Rafael Omar; Novotný Vít; Nguyen Nhung Anh Huynh; Ševců Alena; Vellora Thekkae Padil Vinod; Müllerová Jana; Stuchlík Martin; Petrangeli Papini Marco; Černík Miroslav; Varma RajendraA facile and eco-friendly approach is developed for the synthesis of a poly(3-hydroxybutyrate)–chitosan (PHB–chit) polymer conjugate, which is an ideal material for the synthesis of safer gold nanoparticles (nAu). The synthesized products are characterized by various electron-based, optical and spectroscopic techniques including the catalytic activity and the stability/toxicity of nAu. In contrast to the conventional synthesis approaches, the use of PHB–chit results in generation of a highly stable and size-controlled nAu material that exhibits important catalytic activity towards the reduction of 4-nitrophenol (4-NP) to 4-aminophenol, and at the same time shows no toxicity against living bacterial systems such as Escherichia coli or Staphylococcus aureus. The synthesis route reported herein would inspire future developments that circumvent toxicity issues of relevance to living systems while performing common catalytic experimentation.
- ItemThe assessment of electrospun scaffolds fabricated from polycaprolactone with the addition of L-arginine(IOP Publishing, 2020-01-01) Horáková Jana; Oulehlová Zuzana; Novotný Vít; Jenčová Věra; Mikeš Petr; Havlíčková Kristýna; Procházková Renata; Heczková Bohdana; Hadinec Pavel; Sehr Silvia; Wendel Hans-Peter; Bell Carl Martin; Krajewski Stefanie
- ItemComposite yarns with antibacterial nanofibrous sheaths produced by collectorless alternating-current electrospinning for suture applications(Wiley, 2021-01-01) Madheswaran Divyabharathi; Sivan Manikandan; Valtera Jan; Kuželová Košťáková Eva; Egghe Tim; Asadian Mahtab; Novotný Vít; Nguyen Nhung Anh Huynh; Ševců Alena; Morent Rino; Degeyter Nathalie; Lukáš David
- ItemCopolymer PLCL - spinnability and influence of sterilization method on degradation behavior(České vysoké učení technické v Praze, 2021-01-01) Havlíčková Kristýna; Hauzerová Šárka; Novotný Vít; Müllerová Jana; Kuželová Košťáková Eva; Jenčová Věra
- ItemDegradation behavior of electrospun resorbable polyester nano/micro fibrous materials(2017-01-01) Jenčová Věra; Mikeš Petr; Horáková Jana; Chvojka Jiří; Klápšťová Andrea; Šaman Aleš; Lukáš David; Novotný Vít
- ItemDegradation behavior of polyester micro / nano fibrous materials(2017-01-01) Jenčová Věra; Mikeš Petr; Horáková Jana; Klápšťová Andrea; Novotný Vít; Běhálek Luboš; Šaman Aleš
- ItemDegradation behavior of polyester nano / micro fibrous materials(2017-01-01) Jenčová Věra; Chvojka Jiří; Mikeš Petr; Novotný Vít; Lukáš David
- ItemDetermination of Monitored Components in Coolant Liquids(2014-01-01) Parma Petr; Novotný Vít
- ItemA device for the stabilisation of waste mercury(2020-01-01) Novotný Vít; Provazník Michal; Vymazal Tomáš
- ItemThe effect of ethylene oxide sterilization on electrospun vascular grafts made from biodegradable polyesters(ELSEVIER SCIENCE BV, 2018-01-01) Horáková Jana; Mikeš Petr; Šaman Aleš; Jenčová Věra; Klápšťová Andrea; Švarcová Tereza; Ackermann Michal; Novotný Vít; Suchý Tomáš; Lukáš DavidThe study describes the detailed examination of the effect of ethylene oxide sterilization on electrospun scaffolds constructed from biodegradable polyesters. Different fibrous layers fabricated from polycaprolactone (PCL) and a copolymer consisting of polylactide and polycaprolactone (PLCL) were investigated for the determination of their mechanical properties, degradation rates and interaction with fibroblasts. It was discovered that the sterilization procedure influenced the mechanical properties of the electrospun PLCL copolymer scaffold to the greatest extent. No effect of ethylene oxide sterilization on degradation behavior was observed. However, a delayed fibroblast proliferation rate was noticed with concern to the ethylene oxide sterilized samples compared to the ethanol sterilization of the materials.
- ItemEffects of various chemical oxidation agents on soil microbial communities(ELSEVIER SCIENCE SA, 2017-01-01) Hrabák Pavel; Černík Miroslav; Novotný Vít; Czinnerová Marie
- ItemElectrospun vascular grafts fabricated from poly(L-lactide-co-epsilon-caprolactone) used as a bypass for the rabbit carotid artery(IOP Publishing, 2018-01-01) Horáková Jana; Mikeš Petr; Lukáš David; Šaman Aleš; Jenčová Věra; Klápšťová Andrea; Švarcová Tereza; Ackermann Michal; Novotný Vít; Kaláb Martin; Lonský Vladimír; Bartoš Martin; Rampichova Michala; Litvinec Andrej; Kubíková Tereza; Tomášek Petr; Tonar ZbyněkThe study involved the electrospinning of the copolymer poly(L-lactide-co-ε-caprolactone) (PLCL) into tubular grafts. The subsequent material characterization, including micro-computed tomography analysis, revealed a level of porosity of around 70%, with pore sizes of 9.34 ± 0.19 μm and fiber diameters of 5.58 ± 0.10 μm. Unlike fibrous polycaprolactone, the electrospun PLCL copolymer promoted fibroblast and endothelial cell adhesion and proliferation in vitro. Moreover, the regeneration of the vessel wall was detected following implantation and, after six months, the endothelialization of the lumen and the infiltration of arranged smooth muscle cells producing collagen was observed. However, the degradation rate was found to be accelerated in the rabbit animal model. The study was conducted under conditions that reflected the clinical requirements—the prostheses were sutured in the end-to-side fashion and the long-term end point of prosthesis healing was assessed. The regeneration of the vessel wall in terms of endothelialization, smooth cell infiltration and the presence of collagen fibers was observed after six months in vivo. A part of the grafts failed due to the rapid degradation rate of the PLCL copolymer.
- ItemImpact of Various Sterilization and Disinfection Techniques on Electrospun Poly-&epsi-caprolactone(American Chemical Society, 2020-01-01) Horáková Jana; Klíčová Markéta; Erben Jakub; Klápšťová Andrea; Novotný Vít; Běhálek Luboš; Chvojka Jiří
- ItemIncorporation of L-Arginine into to nanofibrous layer(2018-01-01) Horáková Jana; Novotný Vít; Jenčová Věra; Mikeš Petr; Oulehlová Zuzana; Havlíčková Kristýna
- ItemINFLUENCE OF CHEMICAL OXIDATION AGENTS ON SOIL MICROBIAL COMMUNITIES AND ALIPHATIC HYDROCARBONS REMOVAL FROM HEAVILY CONTAMINATED SOIL(Vodní zdroje Ekomonitor. spol. s.r.o., 2015-01-01) Kakosová Eva; Hrabák Pavel; Czinnerová Marie; Novotný Vít; Černík Miroslav; Trögl Josef; Popelka Jan; Kuráň Pavel; Filuzstková Eva; Matějíčková Tereza; Zoubková Lenka; Vrtoch Luboš
- ItemInfluence of sterilization method and solvent system on degradation of polyester nanofibre materilas(České vysoké učení technické v Praze, 2021-01-01) Havlíčková Kristýna; Hauzerová Šárka; Novotný Vít; Müllerová Jana; Kuželová Košťáková Eva; Jenčová Věra
- ItemLaccase and horseradish peroxidase for green treatment of phenolic micropollutants in real drinking water and wastewater(Springer Nature, 2021-01-01) Maryšková Milena; Novotný Vít; Rysová Miroslava; Ševců Alena
- ItemLarge-scale electrospinning of poly (vinylalcohol) nanofibers incorporated with platelet-derived growth factors(BME-PT and GTE, 2020-01-01) Jenčová Věra; Kopřivová Barbora; Lisnenko Maxim; Solarska-Ściuk Katarzyna; Procházková Renata; Novotný Vít; Müllerová Jana; Mikeš Petr
- ItemLarge-scale electrospinning of poly (vinylalcohol) nanofibers incorporated with platelet-derived growth factors(BME-PT and GTE, 2020-01-01) Jenčová Věra; Kopřivová Barbora; Lisnenko Maxim; Procházková Renata; Novotný Vít; Müllerová Jana; Mikeš Petr; Solarska-Ściuk Katarzyna
- ItemMapping of VOC technological sources and measures for emisson reduction(2017-01-01) Hrabák Pavel; Sázavská Tereza; Novotný Vít; Lísková Klára