تصفح حسب المؤلف "Popelka, Anton"
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Impact of corona and radio-frequency plasma treatment on the degradation of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV)
Antunes, Ana; Popelka, Anton; Luyt, Adriaan Stephanus; Mahmoud, Abdelrahman; Aljarod , Omar Yosef; Hassan, Mohamed; Kasak, Peter... more authors ... less authors ( BME-PT and GTE , 2022 , Article)Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) is a polyester, produced naturally by microorganisms, with excellent biocompatibility. Corona and radio-frequency (RF) plasma treatment were applied in order to improve ... -
Improvement in properties of Ni-B coatings by the addition of mixed oxide nanoparticles
Bahgat Radwan, A.; Shakoor, R.A.; Popelka, Anton ( Electrochemical Science Group , 2015 , Article)A comparison of properties of electrodeposited Ni-B and Ni-B-ZrO2-Al2O3 nanocomposite coatings is presented to explain the benefits of addition of mixed nanoparticles of ZrO2 and Al2O3 into Ni-B matrix. A comparative study ... -
Improvement of aluminum/polyethylene adhesion through corona discharge
Popelka, Anton; Krupa, Igor; Novák, Igor; Al-Maadeed, Mariam Ali S A; Ouederni, Mabrouk ( Institute of Physics Publishing , 2017 , Article)Polyethylene (PE) is often used in several industrial applications including the building, packaging and transport industries. Aluminum (Al) is widely used in different applications in the automotive, railway, aeronautic, ... -
Laser Induced Periodic Surface Structures on Nano Metal Oxide filled Polyvinylidene Fluoride Nanocomposites
Ponnamma, Deepalekshmi; Sivakumar, Velautham; Popelka, Anton; Hussein, Yasser H. A.; Al-Maadeed, Mariam Al Ali ( Elsevier , 2018 , Article)The ability of polarized pulsed laser in surface modification of substrate surfaces without thermally destroying them is a well-established concept of scientific procedure. In this work, we report the laser induced surface ... -
Modification of polyethylene by RF plasma in different/mixture gases
Abusrafa, Aya E.; Habib, Salma; Krupa, Igor; Ouederni, Mabrouk; Popelka, Anton ( MDPI AG , 2019 , Article)Herein, low-density polyethylene (LDPE) films were treated using radio-frequency plasma discharge in the presence of air, nitrogen, oxygen, argon, and their mixtures to introduce new chemical functionalities. The surface ... -
Molecular and Structural Changes in Induced-Brain Stroke Tissue Using FTIR Imaging Spectroscopy, Scanning Electron and Atomic Force Microscopy
Ali, Mohamed H; Al-Saad, Khalid A; Fayyed, Eman M; Popelka, Anton; Rakib, Md F; Ali, Carmen M... more authors ... less authors ( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)1. Background: Stroke, i.e. loss of brain function(s) due to disturbance in the blood supply to the brain, is the main cause of adult disability (e.g. paralysis) in the world, leaving more than half of the patients dependent ... -
Nitric Oxide Releasing Hydrogel Nanoparticles Decreases Epithelial Cell Injuries Associated With Airway Reopening.
Shurbaji, Samar; El-Sherbiny, Ibrahim M; Alser, Maha; Ali, Isra H; Kordi, Haya; Al-Sadi, Ameena; Popelka, Anton; Benslimane, Fatiha; Yacoub, Magdi; Yalcin, Huseyin C... more authors ... less authors ( Frontiers , 2021 , Article)Acute respiratory distress syndrome (ARDS) is an acute inflammatory lung condition. It is characterized by disruption of gas exchange inside the alveoli, accumulation of protein edema, and an increase in lung stiffness. ... -
Novel electrodeposited Ni-B/Y 2 O 3 composite coatings with improved properties
Shakoor, Rana Abdul; Waware, Umesh Somaji; Ali, Kamran; Kahraman, Ramazan; Popelka, Anton; Yusuf, Moinuddin Mohammed; Hasan, Anwarul... more authors ... less authors ( MDPI AG , 2017 , Article)Ni-B/Y 2 O 3 composite coatings were developed through an electrodeposition process to study the effect of addition of Y 2 O 3 particles on structure, surface, thermal, mechanical, and anticorrosion properties of Ni-B ... -
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. ... -
PH-Switchable Interaction of a Carboxybetaine Ester-Based SAM with DNA and Gold Nanoparticles
Filip, Jaroslav; Popelka, Anton; Bertok, Tomas; Holazova, Alena; Osicka, Josef; Kollar, Jozef; Ilcikova, Marketa; Tkac, Jan; Kasak, Peter... more authors ... less authors ( American Chemical Society , 2017 , Article)We describe a self-assembled monolayer (SAM) on a gold surface with a carboxybetaine ester functionality to control the interaction between DNA and gold nanoparticles via pH. The negatively charged phosphate backbone of ... -
Phase change materials designed from Tetra Pak waste and paraffin wax as unique thermal energy storage systems
Al-Gunaid, Taghreed; Sobolčiak, Patrik; Chriaa, Ibtissem; Karkri, Mustapha; Mrlik, Miroslav; Ilčíková, Markéta; Sedláček, Tomáš; Popelka, Anton; Krupa, Igor... more authors ... less authors ( Elsevier , 2023 , Article)Thermal energy storage systems (TES) based on shape-stabilized phase change materials (SSPCM) designed from recycled Tetra Pak (TP) waste, paraffin wax (PW), and expanded graphite (EG) were investigated in this study. This ... -
Photoimmobilization of zwitterionic polymers on surfaces to reduce cell adhesion
Sobolčiak, Patrik; Popelka, Anton; Mičušík, Matej; Sláviková, Monika; Krupa, Igor; Mosnáček, Jaroslav; Tkáč, Ján; Lacík, Igor; Kasák, Peter... more authors ... less authors ( Academic Press Inc. , 2017 , Article)Simple and robust methods for modifying hydrophobic polymer surfaces with zwitterionic polymers using UV irradiation were developed. Two random zwitterionic copolymers consisting of either carboxybetaine or sulfobetaine ... -
Preparation and characterization of alumina HDPE composites
Saleh, Mohamed; Al-Hajri, Zainab; Popelka, Anton; Zaidi, Syed Javaid ( MDPI AG , 2020 , Article)In this study, effects of two different types of porous alumina nanoparticles have been incorporated into high-density polyethylene (HDPE) to study their impact on the properties of the HDPE composite. The dispersion of ... -
Preparation of slippery liquid infused porous surfaces on polymeric substrates
Popelka, Anton; Habib, Salma; Abusrafa, Aya; Zavahir, Fathima Sifani; Abdulkareem, Asma ( Qatar University Press , 2020 , Poster)Many polymers have been found in bio-science paralleling with advancement in a technology sector. A selection of suitable polymers for using in a biomedical sector is based on many factors such as chemical nature, surface ... -
Purification of emulsified oily polluted waters with modified melamine foams
Hailan, Sarah; Sobolciak, Patrik; Kasak, Peter; Popelka, Anton; Tong, Yongfeng; Adham, Samer; Krupa, Igor... more authors ... less authors ( Elsevier , 2023 , Article)Oil and gas industry operations produce tremendous amounts of wastewater (produced water; PW). Tertiary treatment of the PW in the final treatment stage is challenging due to the presence of colloids with sizes < 500 nm ... -
Quantifying and reducing concentration polarization in reverse osmosis systems
Bai, Weiliang; Samineni, Laxmicharan; Chirontoni, Progga; Krupa, Igor; Kasak, Peter; Popelka, Anton; Saleh, Navid B.; Kumar, Manish... more authors ... less authors ( Elsevier , 2023 , Article Review)Reverse osmosis (RO) is an efficient water purification technique because of its high selectivity and permeability. During RO operation, rejection of solutes at the membrane surface leads to generation of a concentration ... -
Reinforcement of copolyamide membranes for water treatment applications
Sobolciak, Patrik; Tanvir, Aisha; Popelka, Anton; Hassan, Mohamed; Mahmoud, Khaled; Krupa, Igor... more authors ... less authors ( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference Paper)Clean water is the key element for all living organisms to sustain life. However, due to the rapid industrialization and large increase in the population, the contamination of water resources is important issue occurred ... -
Separation of water/oil emulsions by an electrospun copolyamide mat covered with a 2D Ti3C2Tx MXene
Moghaddasi, AbdolAli; Sobolčiak, Patrik; Popelka, Anton; Krupa, Igor ( MDPI AG , 2020 , Article)Purpose: Copolyamide 6,10 (coPA) electrospun mats were covered with multilayered (ML) and single-layered (SL) MXene (Ti3C2Tx) as a membrane for the separation of water/vegetable oil emulsions. Methods: Prepared membranes ... -
Simple, Reversible, and Fast Modulation in Superwettability, Gradient, and Adsorption by Counterion Exchange on Self-Assembled Monolayer
Osicka, Josef; Ilcikova, Marketa; Popelka, Anton; Filip, Jaroslav; Bertok, Tomas; Tkac, Jan; Kasak, Peter... more authors ... less authors ( American Chemical Society , 2016 , Article)A simple fabrication method for preparation of surfaces able to switch from superhydrophobic to superhydrophilic state in a reversible and fast way is described. A self-assembled monolayer (SAM) consisting of quaternary ... -
Simultaneous CO2 treatment and blue energy generation from wasted industrial streams
Elmakki, Tasneem; Zavahir, Sifani; Gulied, Mona; Azam, Reem; Peter Kasak, Peter; Popelka, Anton; Han, Dong Suk... more authors ... less authors ( Qatar University Press , 2021 , Poster)In the last decade, there has been an increased global need for finding bright solutions to tackle industrial wastes and emissions release. Herein, this work explores the utilization of a compact Reverse Electrodialysis ...