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Studentská vědecká konference 2018

Harmonogram SVK 2018

  • Vyhlášení SVK 2018
  • Uzávěrka podávání přihlášek: 22. 10. 2018
  • Uzávěrka nahrávání anotací: 8. 11. 2018
  • SVK přednášky všech soutěžících: 22. 11. 2018 - VÝSLEDKY
  • SVK finále (přednášky 19 vítězů): 23. 11. 2018

Sborníky

SVK na FCHI v akademickém roce 2018/2019 proběhla ve čtvrtek 22. 11. 2018.

  • 6 ústavů, 138 soutěžícíh, 19 sekcí.
  • Respirium B - 14:00 Slavnostní vyhlášení vítězů jednotlivých sekcí a předání diplomů z rukou paní děkanky prof. Marie Urbanové

V pátek 23. 11. 2018 se v posluchárně BIII uskutečnilo SVK finále, kde své práce přednesli vítězové jednotlivých sekcí.

  • Sborník finále
  • Délka prezentací 10 minut včetně diskuze (doporučeno 8+2).
  • Složení odborné komise:
    prof. RNDr. Marie Urbanová, CSc. (předsedkyně komise)
    doc. RNDr. Pavel Řezanka, Ph.D. (zástupce 402)
    prof. RNDr. Jiří Kolafa, CSc. (zástupce 403)
    doc. Ing. Zdeněk Slouka, Ph.D. (zástupce 409)
    Ing. Pavel Galář, Ph.D. (zástupce 444)
    doc. Ing. Jan Mareš, Ph.D. (zástupce 445)
    Ing. Pavel Calta, Ph.D. (zástupce společnosti Zentiva - hlavního sponzora SVK na FCHI)
  • Program:
     
8:50    zahájení

9:00-10:00

9:00

Bc. Lenka Adamová

Zvýšení výkonu balicí linky pro expedici do zámoří

9:10

Bc. Martin Bureš

Simulation of long term cycling of vanadium redox flow battery

9:20

Bc. Oleksandr Volochanskyi

Příprava zesilujících dendritických nano/mikrostruktur s využitím bezproudové depozice plasmonických kovů pro potřeby SERS spektroskopie

9:30

Bc. Tereza Navrátilová

Vývoj chemických jazyků s využitím solvatochromních derivátů stilbazolu

9:40

Bc. Lenka Vatrsková

Forenzní elektrochemie nových psychoaktivních látek

9:50

Petr Touš

Termodynamické vlastnosti a sublimace kubanu studované metodami výpočetní chemie

10:00 - 10:20   přestávka
10:20 - 11:20 10:20

Bc. David Palounek

SERS spektroskopie červených pigmentů na povrchu plasmonických kovů: vliv excitační vlnové délky

10:30

Bc. Martin Šourek

Linking micro-scale and meso-scale models for catalytic filter

10:40

Vojtěch Konderla

Enhancement of graphite felt electrode for vanadium redox flow battery by in-cell graphene oxide electrodeposition

10:50

Bc. et Bc. Jan Němec

Analýza tlakových ztrát v automobilových filtrech pevných částic

11:00

Bc. Patrik Bouřa

Příprava a charakterizace biopolymerních mikrocelulárních pěn

11:10

Bc. Jana Sklenářová

Nanášení antistatických nanovrstev metodou elektrosprejování

11:20 - 11:40   přestávka
11:40 - 12:50 11:40

Bc. Ondřej Šrom

Deeper insight into the dynamic light scattering technique for particle size characterization

11:50

Bc. Jaromír Mašek

Polynomial model of liquid flow

12:00

Kristýna Žemlová

Uživatelské rozhraní pro zpracování krystalografických dat

12:10

Bc. Tereza Hanyková

Ověření vlivu promocí na jednotlivé produkty společnosti Henkel s.r.o.

12:20

Bc. Martin Hruška

Senzor plynů na bázi křemenné krystalové mikrováhy

12:30

Bc. Alexandr Zaykov

Singlet Fission - Recent Advances in the Simple Theory

12:40 - 13:00   vyhlášení fakultních vítězů a zakončení

Výsledky fakultního finále

1.místo
Bc. Martin Hruška
Senzor plynů na bázi křemenné krystalové mikrováhy

2.místo
Bc. Alexandr Zaykov
Singlet Fission - Recent Advances in the Simple Theory

3.místo
Bc. Martin Šourek
Linking micro-scale and meso-scale models for catalytic filter

Seznam ústavních koordinátorů SVK

402    Ústav analytické chemie - Ing. Martin Člupek, Ph.D. (Martin.Clupek@vscht.cz)
403    Ústav fyzikální chemie - doc. Ing. Ondřej Vopička, Ph.D. (Ondrej.Vopicka@vscht.cz)
409    Ústav chemického inženýrství - Dr. Ing. Pavlína Basařová (Pavlina.Basarova@vscht.cz)
837    Ústav ekonomiky a managementu - Mgr. Ing. Marek Botek, Ph.D. (Marek.Botek@vscht.cz)
444    Ústav fyziky a měřicí techniky - Ing. Vladimír Scholtz, Ph.D. (Vladimir.Scholtz@vscht.cz)
445    Ústav počítačové a řídicí techniky - Ing. Iva Nachtigalová, Ph.D. (Iva.Nachtigalova@vscht.cz)

Pokud máte jakékoli dotazy nebo v případě, že byste se chtěli stát sponzory SVK na FCHI, kontaktujte prosím fakultní koordinátorku SVK Ing. Jitku Čejkovou, Ph.D. (Jitka.Cejkova@vscht.cz) .

Leták SVK 2018 (šířka 450px)

Děkujeme všem sponzorům SVK 2018 na FCHI!

Hlavní sponzoři


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Chemical Engineering II (B 141b - 8:00)

  • Předseda: doc. Ing. Miroslav Šoóš, Ph.D.
  • Komise: Ing. Mária Zedníková, Ph.D., Ing. Matěj Novák, Ing. Jakub Mužík, Ing. Josef Beránek, Ph.D.
Čas Jméno Ročník Školitel Název příspěvku Anotace
8:20 Bc. Nasrin Bakhshiyeva M2 prof. Ing. František Štěpánek, Ph.D. Incorporation of API in tablet coating using airbrush technique detail

Incorporation of API in tablet coating using airbrush technique

Spray coating of tablets is an important operation in the pharmaceutical industry, since it is mainly used to product protection, better appearance or brand recognition. In some cases it can be used for modification of dissolution kinetics. Film coating of tablets is the application of a thin layer of coating material to modify the tablet properties. Materials for coating may include various substances, such as natural or synthetic resins, gums, sugar, plasticizer and colorant and sometimes flavoring material. Addition of Active Pharmaceutical Ingredient (API) to film coating process is presented in this work. This method can enhance solubility of hydrophobic API, or it can create complex multilayer tablet with more than one API. For this purposes, the airbrush technique was utilized to spray solution of the coating agent together with API onto glass samples. The objective of this study is an investigation of incorporation of API into the tablet coating by utilization of airbrush technique. Polyvinylpyrrolidone along with fluorescein as model API was applied as model coating agent. Layer distribution was examined on confocal laser scanning microscope, where pictures were taken. Determination of the average layer thickness was analysed by ImageJ software program.
8:40 Samuel Frei B3 prof. Ing. František Štěpánek, Ph.D. Design and development of stimuli-responsive magnetoliposomes detail

Design and development of stimuli-responsive magnetoliposomes

Over the last years, significant effort has been invested in research of so-called magnetoliposomes, which are a combination of liposomes and magnetic nanoparticles (NPs). While liposomes can be used as vesicles for drug delivery, incorporating magnetic NPs such as Fe3O4 can be used for targeted delivery as well as on-demand drug release using an alternating magnetic field. Based on a surface modification/stabilization of NPs, they can show hydrophilic or hydrophobic behavior. Also, different types of behavior between them and liposomes can be observed (e.g. aggregation). This work focuses on the usage of several types of Fe3O4 NPs (Dextran 40, sodium citrate and dipalmitoylphosphatidylcholine (DPPC) stabilizers) and multiple ways of magnetoliposomes preparation. Tests for the movement in the magnetic field and for the radiofrequency-triggered release of cargo were carried out with magnetoliposomes (400-500 nm) prepared with DPPC-stabilized Fe3O4 NPs loaded by 6-carboxyfluorescein.
9:00 David Gráf B3 prof. Dr. Ing. Juraj Kosek Optimalizace depozice nanočástic pomocí elektrostatických čoček detail

Optimalizace depozice nanočástic pomocí elektrostatických čoček

Urged need of new, more effective technique of nano-sized particle production is growing in the scientific and industrial fields. One of the promising methods which can fulfill these requirements is electrospraying. Using this technique, we are able to control the droplet size, charge and frequency of their generation. Moreover, the produced particles are of a narrow particle size distribution, because the mechanism of deposition prevents the aggregation of particles. The deposition efficiency of charged spray on an object is much higher than for uncharged droplets, but the shape of the deposition cone is impractical for spraying on larger surfaces. The goal of this work is to investigate the influence of the electrostatic field on deposited particulate layers. To improve the deposition of particles and specifically, to control the geometry of deposition cone, we utilize electrostatic lenses attached to the electrospraying system. By comparing behaviours of systems with and without the lenses, respectively, we showed that the presence of electrostatic lenses significantly improves the resulting layer quality. We further present a broad parametric study of the layer quality dependence on the electrostatic lenses that may be useful both for the scientific community and industry.



9:20 Vojtěch Konderla B3 Ing. Petr Mazúr, Ph.D. Enhancement of graphite felt electrode for vanadium redox flow battery by in-cell graphene oxide electrodeposition detail

Enhancement of graphite felt electrode for vanadium redox flow battery by in-cell graphene oxide electrodeposition

Energy efficiency of vanadium redox flow batteries can be significantly improved by enhancement of catalytic properties of graphite felt electrode, e.g., by its heating, etching or by deposition of electrocatalytic nanoparticles. In this study, graphene oxide (GO) is electrodeposited on the positive battery electrode in order to create more active sites in the felt where the reaction between VO2+ and VO2can occur. We investigated the effect of various deposition conditions on the performance of the electrode in the battery single-cell. The electrochemical impedance spectroscopy, load curve measurements and charge-discharge cycling of the battery revealed significant improvement of felt conductivity and catalytic activity due to GO deposition. Subsequently, the homogeneity of the deposited GO was observed by scanning electron microscopy and the changes in the specific surface area were evaluated from nitrogen physisorption based on Brunauer–Emmett–Teller theory.  
9:40 Bc. Lucie Kopačková M1 prof. Ing. František Štěpánek, Ph.D. Immunoliposomes: development and antibody coupling strategies   detail

Immunoliposomes: development and antibody coupling strategies  

Immunoliposomes are promising in field of drug delivery systems, offering targeting and increased therapeutic index of anti-cancer drugs. They consist of two main parts: 1) antibody or antibody fragments, that provide active targeting to the tumor site; 2) liposomes, accumulating, stabilizing and protecting the drug against the degradation. Many liposomal products are on the market (e.g. liposomal doxorubicin). Nevertheless, only few immunoliposomal formulations reached clinical trials. The Fab´ fragments of IgG M75 antibody (specific for Carbonic Anhydrase IX, overexpressed on colorectal carcinoma, e.g. HT-29 cell line) were prepared, reduced and conjugated to PEGylated liposomes via maleimide group. ELISA- like test, polyacrylamide gel electrophoresis (PAGE) and size-exclusion chromatography (SEC) have been carried out to optimize the fragment generation protocol. Immunoliposomes with prepared antibody fragments were characterized by dynamic light scattering and ELISA-like test. Immunoliposomes` ability of binding the target cells will be studied in vitro using HT-29 cell line.  
10:00 Jakub Regner B3 Ing. Petr Mazúr, Ph.D. Effect of chemical structure of selected organic redox compounds on their electrochemical properties using rotation disk electrode detail

Effect of chemical structure of selected organic redox compounds on their electrochemical properties using rotation disk electrode

The intermittency of photovoltaics and wind electricity source is the main technical obstacle for the distribution grid. Redox flow battery (RFB) is a technology for the compensation of fluctuations between the generation and consumption of the electricity. In this system the energy is stored in liquid electrolytes which are circulated through the battery stack. Vanadium RFB is currently the most technologically mature system, but high cost and low abundance of vanadium motivate for research of alternative redox compounds. Organic redox compounds can provide more-electron redox reaction and appropriate properties as an active material. In this work we study the electrochemical reversibility and transport properties of selected quinone derivatives on glassy carbon rotating disk electrode. The diffusion coefficient and reaction rate constant was evaluated from polarization curves under different electrode rotation rates using Koutecky-Levich equation. The effect of number of substituents and its position on quinone molecule in acidic electrolyte is systematically investigated.
10:40 Martin Krov B3 Ing. Aleš Zadražil, Ph.D. Dripping characterization from single needle detail

Dripping characterization from single needle

Dripping and jetting provides a simple way of creating spherical drops that could be used for fabrication of liquid marbles, however a uniform diameter the drops is required. The goal of this study was to investigate the effect of process parameters (temperature, the speed of the linear pump, diameter and length of the needle) on droplet size. The most desired size were 1.5 mm monodisperse ones. Needles of different length and diameter connected to a linear pump were used for creating a droplet. Two hollow aluminum blocks were used as liquid reservoirs. The first one was equipped with a standard plastic syringe, while in the second one the liquid was squeezed out directly from the block by using a piston. Images of the drops were captured with a high-speed camera and consequently, software FIJI was used for image analysis to determine the size of the droplets. It was found that jetting regime is either unstable or far too sensitive to slight fluctuations in the parameters of the liquid, which results in large variation in droplet sizes. Drops produced by dripping regime were larger than intended (1.8 mm). However, dripping showed a remarkable consistency of drop size, making it a useful method for creating liquid marbles with precise control of diameter.
11:00 Pavlína Michaláková B3 prof. Ing. František Štěpánek, Ph.D. Interaction of surface-modified nanoparticles with tumor and immune cells detail

Interaction of surface-modified nanoparticles with tumor and immune cells

Cancer is one of the world`s biggest health problems and one of the leading causes of death. The methods commonly used for the cancer treatment have many side effects and are non-effective for many patients. These problems could be solved by using chemical robots –nanoparticle based carrier systems able to specifically deliver the encapsulated drug to the tumor, which would minimize the side effects and maximize the treatment efficiency. However, most of the intravenously administered nanoparticles are recognized by the immune system and are removed from the bloodstream by macrophage phagocytosis. The presented work is based on the results of in vivo study (Lizoňová et al., 2018) and explores the interaction of antibody-modified “stealth” nanoparticles with the target tumor cells (HT-29 cell line) and with macrophages (J774.A1 cell line). The main aim of the work is to optimize the nanoparticle dosage leading to preferential adhesion to the tumor cells, while avoiding the macrophages. Prepared nanoparticles were characterized by Dynamic Light Scattering (160 nm), ELISA-like test and the experiments with the cell lines were evaluated via fluorescent microscopy.  
11:20 Bc. Bager Baris Solgun M2 Ing. František Muzika, Ph.D. Influence of temperature and initial concentration of NaOH on pH dynamic behaviour of GOx-Ferricyanide-Glucose system in CSTR detail

Influence of temperature and initial concentration of NaOH on pH dynamic behaviour of GOx-Ferricyanide-Glucose system in CSTR

              Glucose oxidase (EC 1.1.3.4, from Aspergillus Niger) catalyzes the oxidation of β-D-glucose  δ-lactone in the presence of a variety of oxidizing  substrates, including molecular oxygen (O2) and many one and two electron acceptors [1]. K3 [Fe(CN)6] is used as electron acceptor in this work. Glucose oxidase (GOx) is widely used for the determination of dissolved glucose in body fluids (diagnostics) or in nanotube biofuel cells [2].             In the experiment there were 4 stock solutions, namely NaOH, K3[Fe(CN)6] (936mM), GOx (58.972U/ml) and glucose (48mM). The initial concentration of NaOH is adjusted in each experiment to see the effect on the reaction. The pH is measured using pH meter HI 5222-2. The temperature of stock solutions is maintained using dry thermostat WiseTherm HB-R and to the heater/strirer Wisd MSH-20D beneath the CSTR. The experiments with pH oscillatory behaviour is shown in the graph. The largest pH oscillation measured in my experiment with more than 2 pH units is show as blue curve. [1] Vladimir K. Vanag, David G. Míguez, and Irving R. Epstein, The Journal of Chemical Physics 125, 194515 (2006) [2] Ágnes Ch., Reuillard B., Le Goff A., Holzinger M. and Cosnier S., Electrochemistry Communications 34, 105-108, (2013).



11:40 Barbora Tučková B3 prof. Dr. Ing. Juraj Kosek Co-swelling of PE in gas and liquid and its impact on morphology detail

Co-swelling of PE in gas and liquid and its impact on morphology

Polyolefins, namely polyethylene (PE) and polypropylene (PP), are the largest class of commodity thermoplastics. Their easy processability and low price make them the most widely produced and used synthetic polymers. Polyolefins are semi-crystalline materials, i.e., they consist of amorphous and crystalline phase. Only amorphous phase changes its volume during the swelling, whereas the crystalline part remains the same. In this work, we investigate the swelling of PE in a mixture of liquid and gaseous hydrocarbons (e.g., liquid n-hexane and gaseous ethylene), particularly we measure the effect of gas (ethylene) pressure on the swelling. These thermodynamic data are not only scientifically interesting, but are applicable as input data for the process optimization. The second part of this work focuses on morphology changes of PE before and after swelling by liquid penetrant. For this purpose, we use Atomic force microscope (AFM) of samples prepared for scanning by cryo-ultramicrotomy. Extensive swelling causes irreversible changes in semi-crystalline morphology due to deformations of both crystalline and amorphous domains. Our swelling and morphology measurements are compared to available theories.  
12:00 Pavel Zelenka B3 prof. Ing. František Štěpánek, Ph.D. Construction and optimization of flow cell for particle separation and analysis detail

Construction and optimization of flow cell for particle separation and analysis

The behaviour of pharmaceutical tablets in aqueous media is an important part of the drug design. The dissolution of an active ingredient is greatly influenced by the process of tablet disintegration and can affect crucial parameters of the treatment. Therefore, it is necessary to understand the dynamics of both processes. In previous work, many widely used methods were examined to characterize these processes but none of them could provide results comprehensive enough. The presented work deals with the design of the new method for disintegration residua size distribution measurement and separation based on the combination of hydrodynamic fractionation and image processing in public domain program ImageJ. The method utilizes differences of the sedimentation rates between particles of different sizes. A flow cell was designed, in which the flow rate of a fluid medium is linearly dependant on the z-axis coordinate. In this environment, the point of equilibrium exists for each particle between the flow rate of the medium and the sedimentation rate of said particle. This work focuses on proving the concept viable using model spherical glass particles and comparing the particle size distribution measured by this method with particle characteristics from other conventional methods.

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Aktualizováno: 20.9.2019 10:21, Autor: fchi

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