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Посмотр Ústav mikroelektroniky по дате публикации 
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  • Flow Injection Analysis Coupled with Carbon Electrodes as the Tool for Analysis of Naphthoquinones with Respect to Their Content and Functions in Biological Samples 

    Babula, Petr; Křížková, Soňa; Adam, Vojtěch; Hubálek, Jaromír; Kizek, René (MDPI, 2006-10-01)
    Naphthoquinones are one of the groups of secondary metabolites widespread in nature, where they mostly appear as chromatic pigments. They embody broad-range of biological actions from phytotoxic to fungicidal. An anticancer ...
  • New Hydrodynamic Electrochemical Arrangement for Cadmium Ions Detection Using Thick-Film Chemical Sensor Electrodes 

    Prášek, Jan; Adámek, Martin; Hubálek, Jaromír; Adam, Vojtěch; Trnková, Libuše; Kizek, René (MDPI, 2006-11-06)
    Miniaturization and integration of chemical devices into modules that are dimensionally comparable with electronic chips (Lab on Chip) is nowadays developing worldwide. The aim of our work was to suggest and optimize the ...
  • Spectrometric and Voltammetric Analysis of Urease: Nickel Nanoelectrode as an Electrochemical Sensor 

    Hubálek, Jaromír; Klosová, Kateřina; Adámek, Martin (MDPI, 2007-07-16)
    Urease is the enzyme catalyzing the hydrolysis of urea into carbon dioxide and ammonia. This enzyme is substrate-specific, which means that the enzyme catalyzes the hydrolysis of urea only. This feature is a basic diagnostic ...
  • An Investigation of Glutathione-Platinum(II) Interactions by Means of the Flow Injection Analysis Using Glassy Carbon Electrode 

    Zítka, Ondřej; Křížková, Soňa; Adam, Vojtěch; Trnková, Libuše; Hubálek, Jaromír; Kizek, René (MDPI, 2007-07-20)
    Glutathione was discovered by M. J. de Rey Pailhade at the end of the 19th century as the substance (hydrogénant le soufre), which was renamed by F.G. Hopkins in 1921. Hopkins first characterised the compound as a dipeptide ...
  • Utilizing of square wave voltammetry to detect flavonoids in the presence of human urine 

    Adam, Vojtěch; Hubálek, Jaromír; Beklová, Miroslava; Trnková, Libuše; Kizek, René (MDPI, 2007-10-15)
    About biological affecting of flavonoids on animal organisms is known less, thus we selected flavonoids, flavanones and flavones, and their glycosides, which were examined as potential inducers of cytochrome(s) P450 when ...
  • Shapes of Differential Pulse Voltammograms and Level of Metallothionein at Different Animal Species 

    Adam, Vojtěch; Beklová, Miroslava; Hubálek, Jaromír; Trnková, Libuše; Kizek, René (MDPI, 2007-10-19)
    Metallothioneins play a key role in maintaining homeostasis of essential metals and in protecting of cells against metal toxicity as well as oxidative damaging. Excepting humans, blood levels of metallothionein have not ...
  • Multi-instrumental Analysis of Tissues of Sunflower Plants Treated with Silver(I) Ions - Plants as Bioindicators of Environmental Pollution 

    Křížková, Soňa; Kryštofová, Olga; Adam, Vojtěch; Vašinová Galiová, Michaela; Beklová, Miroslava; Babula, Petr; Kaiser, Jozef; Liška, Miroslav; Malina, Radomír; Zehnálek, Josef; Hubálek, Jaromír; Kizek, René (MDPI, 2008-01-24)
    The aim of this work is to investigate sunflower plants response on stress induced by silver(I) ions. The sunflower plants were exposed to silver(I) ions (0, 0.1, 0.5, and 1 mM) for 96 h. Primarily we aimed our attention ...
  • Lactoferrin Isolation Using Monolithic Column Coupled with Spectrometric or Micro-Amperometric Detector 

    Adam, Vojtěch; Zítka, Ondřej; Hubálek, Jaromír; Křížková, Soňa; Trnková, Libuše; Kizek, René (MDPI, 2008-01-24)
    Lactoferrin is a multifunctional protein with antimicrobial activity and others to health beneficial properties. The main aim of this work was to propose easy to use technique for lactoferrin isolation from cow colostrum ...
  • Amperometric Sensor for Detection of Chloride Ions 

    Trnková, Libuše; Adam, Vojtěch; Hubálek, Jaromír; Babula, Petr; Kizek, René (MDPI, 2008-09-15)
    Chloride ion sensing is important in many fields such as clinical diagnosis, environmental monitoring and industrial applications. We have measured chloride ions at a carbon paste electrode (CPE) and at a CPE modified with ...
  • Quantum Dots - Characterization, Preparation and Usage in Biological Systems 

    Drbohlavová, Jana; Adam, Vojtěch; Kizek, René; Hubálek, Jaromír (MDPI, 2009-02-20)
    The use of fluorescent nanoparticles as probes for bioanalytical applications is a highly promising technique because fluorescence-based techniques are very sensitive. Quantum dots (QDs) seem to show the greatest promise ...
  • Study of Interactions between Metallothionein and Cisplatin by using Differential Pulse Voltammetry Brdicka's reaction and Quartz Crystal Microbalance 

    Húska, Dalibor; Adam, Vojtěch; Masařík, Michal; Hubálek, Jaromír; Trnková, Libuše; Kizek, René (MDPI, 2009-03-15)
    Treatment strategies for tumour diseases are progressively focusing on personalization of medicine. However, this focus requires methods revealing the early general biological mechanisms, including the formation anti-cancer ...
  • Preparation and Properties of Various Magnetic Nanoparticles 

    Drbohlavová, Jana; Hrdý, Radim; Adam, Vojtěch; Kizek, René; Hubálek, Jaromír; Schneeweiss, Oldřich (MDPI, 2009-03-30)
    The fabrications of iron oxides nanoparticles using co-precipitation and gadolinium nanoparticles using water in oil microemulsion method are reported in this paper. Results of detailed phase analysis by XRD and Mössbauer ...
  • Silver(I) Ions Ultrasensitive Detection at Carbon Electrodes-Analysis of Waters, Tobacco Cells and Fish Tissues 

    Křížková, Soňa; Kryštofová, Olga; Trnková, Libuše; Hubálek, Jaromír; Adam, Vojtěch; Beklová, Miroslava; Kizek, René (MDPI, 2009-09-01)
    We used carbon paste electrodes and a standard potentiostat to detect silver ions. The detection limit (3 Signal/Noise ratio) was estimated as 0.5 mu M. A standard electrochemical instrument microanalysis of silver(I) ions ...
  • Modification of working electrode surface with carbon nanotubes as an electrochemical sensor for estimation of melting points of DNA 

    Hubálek, Jaromír; Prášek, Jan; Húska, Dalibor; Adámek, Martin; Adam, Vojtěch; Trnková, Libuše; Kizek, René (Elsevier BV, 2009-09-06)
    Screen-printed with three electrode system was used in this study. A working electrode has been printed from carbon nanotubes based paste on silver layer modified with nano-patterned structures for the first case. In the ...
  • Electrochemical Microsensors for the Detection of Cadmium(II) and Lead(II) Ions in Plants 

    Kryštofová, Olga; Trnková, Libuše; Adam, Vojtěch; Zehnálek, Josef; Hubálek, Jaromír; Babula, Petr; Kizek, René (MDPI, 2010-06-01)
    Routine determination of trace metals in complex media is still a difficult task for many analytical instruments. The aim of this work was to compare three electro-chemical instruments [a standard potentiostat (Autolab), ...
  • Content of phenolic compounds and antioxidant capacity in fruits of selected genotypes of apricot with resistance against Plum pox virus 

    Sochor, Jiří; Zítka, Ondřej; Škutková, Helena; Pavlík, Dušan; Babula, Petr; Krška, Boris; Horna, Aleš; Adam, Vojtěch; Provazník, Ivo; Kizek, René (MDPI, 2010-09-07)
    Research on natural compounds is increasingly focused on their effects on human health. In this study, we were interested in the evaluation of nutritional value expressed as content of total phenolic compounds and antioxidant ...
  • Design of pressure sensor based on optical fiber Bragg grating lateral deformation 

    Urban, František; Kadlec, Jaroslav; Vlach, Radek; Kuchta, Radek (MDPI, 2010-12-08)
    This paper describes steps involved in the design and realization of a new type of pressure sensor based on the optical fiber Bragg grating. A traditional pressure sensor has very limited usage in heavy industrial environments, ...
  • Effect of five different stages of ripening on chemical compounds in medlar (Mespilus germanica L.) 

    Rop, Otakar; Sochor, Jiří; Juříková, Tunde; Zítka, Ondřej; Škutková, Helena; Mlček, Jiří; Salaš, Petr; Krška, Boris; Babula, Petr; Adam, Vojtěch; Kramářová, Daniela; Beklová, Miroslava; Provazník, Ivo; Kizek, René (MDPI, 2010-12-28)
    Study of changes of nutritional value of fruit during the process of ripening can help to estimate the optimal date for fruit harvesting to achieve the best quality for direct consumption and further utilization. The aim ...
  • Evaluation of polyphenolic profile and nutritional value of non-traditional fruit species in the Czech Republic - A comparative study 

    Juříková, Tunde; Sochor, Jiří; Rop, Otakar; Mlček, Jiří; Balla, Štefan; Szekeres, Ladislav; Žitný, Rastislav; Zítka, Ondřej; Adam, Vojtěch; Kizek, René (MDPI, 2012-08-01)
    Dry matter, organic acids, ascorbic acid, minerals (nitrogen, phosphorus, potassium, calcium, magnesium, sodium) and polyphenolic profile of a number of non-traditional fruit species and their genotypes, namely blue ...
  • Investigation into the Effect of Molds in Grasses on Their Content of Low Molecular Mass Thiols 

    Skládanka, Jiří; Adam, Vojtěch; Zítka, Ondřej; Kryštofová, Olga; Beklová, Miroslava; Kizek, René; Havlíček, Zdeněk; Sláma, Petr; Nawrath, adam (MDPI, 2012-10-24)
    The aim of this study was to investigate the effect of molds on levels of low molecular mass thiols in grasses. For this purpose, the three grass species Lolium perenne, Festulolium pabulare and Festulolium braunii were ...
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