Browsing by Author "Tkac, Jan"
Now showing items 1-20 of 25
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Anisotropy in CNT composite fabricated by combining directional freezing and gamma irradiation of acrylic acid
Osička, Josef; Ilčíková, Marketa; Mrlík, Miroslav; Al-Maadeed, Mariam Ali S.A.; Šlouf, Miroslav; Tkac, Jan; Kasák, Peter... more authors ... less authors ( Elsevier, Ltd , 2016 , Article)A novel fabrication process for composite consisting of organized modified carbon nanotubes (CNT) in the polyacrylic acid (PAA) matrix has been developed. The CNT were organized along crystallite domains during a directional ... -
Carboxybetaine Ester Feature as a Platform for Switchable Surface Properties
Kasak, Peter; Ilcikova, Marketa; Bertok, Tomas; Tkac, Jan ( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)A lot of strategies for smart approaches on surfaces were applied such as hydrogel layer, polymer brushes or self-assembly monolayers (SAM). [1] Nowadays switchable zwitterionic materials consisting of molecules with ... -
Carboxybetaine Modified Interface for Electrochemical Glycoprofiling of Antibodies Isolated from Human Serum
Bertok, Tomas; Sediva, Alena; Filip, Jaroslav; Ilcikova, Marketa; Kasak, Peter; Velic, Dusan; Jane, Eduard; Mravcová, Martina; Rovenský, Jozef; Kunzo, Pavol; Lobotka, Peter; Šmatko, Vasilij; Vikartovská, Alica; Tkac, Jan... more authors ... less authors ( American Chemical Society , 2015 , Article)Impedimetric lectin biosensors capable of recognizing two different carbohydrates (galactose and sialic acid) in glycans attached to antibodies isolated from human serum were prepared. The first step entailed the modification ... -
Electrochemical Investigation of Interfacial Properties of Ti3C2Tx MXene Modified by Aryldiazonium Betaine Derivatives
Lorencova, Lenka; Gajdosova, Veronika; Hroncekova, Stefania; Bertok, Tomas; Jerigova, Monika; Velic, Dusan; Sobolciak, Patrik; Krupa, Igor; Kasak, Peter; Tkac, Jan... more authors ... less authors ( Frontiers Media S.A. , 2020 , Article)For efficient and effective utilization of MXene such as biosensing or advanced applications, interfacial modification of MXene needs to be considered. To this end, we describe modification of Ti3C2Tx MXene by aryldiazonium-based ... -
Electrochemical performance of Ti3C2Tx MXene in aqueous media: towards ultrasensitive H2O2 sensing
Lorencova, Lenka; Bertok, Tomas; Dosekova, Erika; Holazova, Alena; Paprckova, Darina; Vikartovska, Alica; Sasinkova, Vlasta; Filip, Jaroslav; Kasak, Peter; MonikaJerigova; Velic, Dusan; Mahmoud, Khaled A.; Tkac, Jan... more authors ... less authors ( Elsevier Ltd , 2017 , Article)An extensive characterization of pristine and oxidized Ti3C2Tx (T: O, OH, F) MXene showed that exposure of MXene to an anodic potential in the aqueous solution oxidizes the nanomaterial forming TiO2 layer or TiO2 domains ... -
Exchange counterion in polycationic hydrogels: Tunability of hydrophobicity, water state, and floating capability for a floating ph device
Danko, Martin; Kronekova, Zuzana; Krupa, Igor; Tkac, Jan; Matúš, Peter; Kasak, Peter... more authors ... less authors ( MDPI AG , 2021 , Article)Smart gel materials are capable of controlling and switching swelling, water state, and wettability properties triggered by external stimuli. In this study, we fabricated a series of polyelectrolyte hydrogels bearing a ... -
Glycomics of prostate cancer: updates
Tkac, Jan; Bertok, Tomas; Hires, Michal; Jane, Eduard; Lorencova , Lenka; Kasak, Peter... more authors ... less authors ( Taylor and Francis Ltd , 2019 , Article)Introduction: Prostate cancer (PCa) is a life-threatening disease affecting millions of men. The current best PCa biomarker (level of prostate-specific antigen in serum) lacks specificity for PCa diagnostics and this is ... -
Glycoprofiling as a novel tool in serological assays of systemic sclerosis: A comparative study with three bioanalytical methods
Klukova, Ludmila; Bertok, Tomas; Petrikova, Miroslava; Sediva, Alena; Mislovicova, Danica; Katrlik, Jaroslav; Vikartovska, Alica; Filip, Jaroslav; Kasak, Peter; Andicsová-Eckstein, Anita; Mosnáček, Jaroslav; Lukáč, Jozef; Rovenský, Jozef; Imrich, Richard; Tkac, Jan... more authors ... less authors ( Elsevier , 2015 , Article)Systemic sclerosis (SSc) is an autoimmune disease seriously affecting patient’s quality of life. The heterogeneity of the disease also means that identification and subsequent validation of biomarkers of the disease is ... -
Glycoprofiling of cancer biomarkers: Label-free electrochemical lectin-based biosensors
Pihíková, Dominika; Kasák, Peter; Tkac, Jan ( De Gruyter , 2015 , Article)Glycosylation of biomolecules is one of the most prevalent post- and co-translational modification in a human body, with more than half of all human proteins being glycosylated. Malignant transformation of cells influences ... -
Graphene as a signal amplifier for preparation of ultrasensitive electrochemical biosensors
Filip, Jaroslav; Kasák, Peter; Tkac, Jan ( Springer-Verlag , 2015 , Article)Early diagnostics of diseases performed with minimal money and time consumption has become achievable due to recent advances in development of biosensors. These devices use biorecognition elements for selective interaction ... -
Highly stable Ti3C2Tx (MXene)/Pt nanoparticles-modified glassy carbon electrode for H2O2 and small molecules sensing applications
Lorencova, L.; Lorencova, Lenka; Bertok, Tomas; Filip, Jaroslav; Jerigova, Monika; Velic, Dusan; Kasak, Peter; Mahmoud, Khaled A.; Tkac, Jan... more authors ... less authors ( Elsevier B.V. , 2018 , Article)© 2018 Elsevier B.V. Electrochemical performance of a 2D Ti3C2Tx (MXene, where T: [dbnd]O, –OH, –F) sheets modified with Pt nanoparticles (PtNPs) was investigated. The results showed that Ti3C2Tx/PtNP nanocomposite deposited ... -
Immobilization of bilirubin oxidase on graphene oxide flakes with different negative charge density for oxygen reduction. The effect of GO charge density on enzyme coverage, electron transfer rate and current density
Filip, Jaroslav; Andicsova-Eckstein, Anita; Vikartovska, Alica; Tkac, Jan ( Elsevier Ltd , 2017 , Article)Previously we showed that an effective bilirubin oxidase (BOD)-based biocathode using graphene oxide (GO) could be prepared in 2 steps: 1. electrostatic adsorption of BOD on GO; 2. electrochemical reduction of the BOD-GO ... -
Immobilization of concanavalin A lectin on a reduced graphene oxide-thionine surface by glutaraldehyde crosslinking for the construction of an impedimetric biosensor
Filip, Jaroslav; Zavahir, Sifani; Klukova, Ludmila; Tkac, Jan; Kasak, Peter ( Elsevier B.V. , 2017 , Article)Lectins, which are proteins with selective affinity to glycans or glycoproteins, have been recognized as promising agents for the construction of devices for the detection of specific glycoproteins and for glycoprofiling. ... -
Mixed Zwitterion-Based Self-Assembled Monolayer Interface for Impedimetric Glycomic Analyses of Human IgG Samples in an Array Format
Bertok, Tomas; Dosekova, Erika; Belicky, Stefan; Holazova, Alena; Lorencova, Lenka; Mislovicova, Danica; Paprckova, Darina; Vikartovska, Alica; Plicka, Robert; Krejci, Jan; Ilcikova, Marketa; Kasak, Peter; Tkac, Jan... more authors ... less authors ( American Chemical Society , 2016 , Article)An impedimetric lectin biosensor for the detection of changes in the glycan structure of antibodies isolated from human serum is here correlated with the progression of rheumatoid arthritis (RA). The biosensor was built ... -
Nanomaterial-based biosensors for detection of prostate specific antigen
Bertok, Tomas; Dosekova, Erika; Holazova, Alena; Lorencova, Lenka; Kasak, Peter; Tkac, Jan... more authors ... less authors ( Springer-Verlag Wien , 2017 , Article Review)Screening serum for the presence of prostate specific antigen (PSA) belongs to the most common approach for the detection of prostate cancer. This review (with 156 refs.) addresses recent developments in PSA detection based ... -
Nanotechnology in Glycomics: Applications in Diagnostics, Therapy, Imaging, and Separation Processes
Dosekova, Erika; Filip, Jaroslav; Bertok, Tomas; Both, Peter; Kasak, Peter; Tkac, Jan... more authors ... less authors ( John Wiley and Sons Inc. , 2017 , Article Review)This review comprehensively covers the most recent achievements (from 2013) in the successful integration of nanomaterials in the field of glycomics. The first part of the paper addresses the beneficial properties of ... -
Nicotinamide-based supergelator self-assembling via asymmetric hydrogen bonding NH OC and H Br pattern for reusable, moldable and self-healable nontoxic fuel gels
Kasak, Peter; Hrobarik, Peter; Osicka, Josef; Solarikova, Dominika; Horvath, Branislav; Tkac, Jan; Sadasivuni, Kishor K.; AlMaadeed, Mariam A.; Miklase, Roman... more authors ... less authors ( Academic Press Inc. , 2021 , Article)Hypothesis Development of highly efficient low-molecular weight gelators (LMWGs) for safe energy storage materials is of great demand. Energy storage materials as fuel gels are often achieved by construction of hybrid ... -
Nicotinamide-based supergelator self-assembling via asymmetric hydrogen bonding NH⋯OC and H⋯Br− pattern for reusable, moldable and self-healable nontoxic fuel gels
Kasak, Peter; Hrobárik, Peter; Osička, Josef; Soláriková, Dominika; Horváth, Branislav; Tkac, Jan; Sadasivuni, Kishor K.; AlMaadeed, Mariam A.; Mikláš, Roman... more authors ... less authors ( Elsevier , 2021 , Article)Hypothesis Development of highly efficient low-molecular weight gelators (LMWGs) for safe energy storage materials is of great demand. Energy storage materials as fuel gels are often achieved by construction of hybrid ... -
Novel analysis of glycan structures: Nanoscale approach
Bertok, Tomas; Pihikova, Dominika; Holazova, Alena; Hushegyi, Andras; Klukova, Ludmila; Filip, Jaroslav; Belicky, Stefan; Dosekova, Erika; Kasak, Peter; Tkac, Jan... more authors ... less authors ( Avestia Publishing , 2016 , Conference Paper)Glycans are complex saccharide moieties covering all cell surfaces - presented on different biomolecules. Almost 75% of all proteins are glycosylated, and these glycans can form thousands of different structures.[1] Moreover, ... -
Perfluoroctylsilane grafted Ti3C2X-based hydrogel liquid marble for controlled movement, self-assembly, light-induced release, and water evaporation system
Popelka, Anton; Padmanabhan, Anjali Cheeramthodi; Elgendy, Ahmed Sedeek; Sobolciak, Patrik; Krupa, Igor; Bin Yousaf, Ammar; Šebesta, Martin; Tkac, Jan; Kasak, Peter... more authors ... less authors ( Elsevier , 2023 , Article)In this study, a stable and highly hydrophobic perfluoroctylsilane grafted Ti3C2X (PFMXene) possessing repeatable and stable photothermal behavior was applied for fabrication of liquid marble (LM) and hydrogel-based LM. ...