Browsing Pokročilé nízkodimenzionální nanomateriály by Issue Date

Now showing items 21-40 of 42

  • Water-born 3Dnanofiber mats usingcost-effectivecentrifugal spinning: comparison with electrospinnig process: A complex study 

    Říhová, Martina; Ince, Ahmet Erdem; Čičmancová, Veronika; Hromádko, Luděk; Částková, Klára; Pavliňák, David; Vojtová, Lucy; Macák, Jan (WILEY, 2021-02-05)
    A comparison of the electrostatic and centrifugal spinning of poly(vinyl alcohol) and poly(vinyl pyrrolidone) is shown in terms of the resulting fiber morphology and the process conditions. Specific parameters of centrifugal ...

  • Organoselenium Precursors for Atomic Layer Deposition 

    Charvot, Jaroslav; Zazpe Mendioroz, Raúl; Macák, Jan; Bureš, Filip (American Chemical Society, 2021-03-16)
    Organoselenium compounds with perspective application as Se precursors for atomic layer deposition have been reviewed. The originally limited portfolio of available Se precursors such as H2Se and diethyl(di)selenide has ...

  • High aspect ratio TiO2 nanotube layers obtained in a very short anodization time 

    Alijani, Mahnaz; Sopha, Hanna Ingrid; Ng, Siow Woon; Macák, Jan (Elsevier, 2021-04-20)
    Over the past years, the growth of high aspect ratio (HAR) anodic TiO2 nanotubes in a very short time (minute scale) has remained challenging. In the present report, TiO2 nanotube (TNT) layers with HAR approximate to 450 ...

  • Anodic TiO2 nanotube walls reconstructed: Inner wall replaced by ALD TiO2 coating 

    Motola, Martin; Zazpe Mendioroz, Raúl; Hromádko, Luděk; Přikryl, Jan; Čičmancová, Veronika; Rodriguez Pereira, Jhonatan; Sopha, Hanna Ingrid; Macák, Jan (Elsevier, 2021-05-30)
    A reconstruction process of TiO2 nanotube (TNT) layers towards their superior photoelectrochemical performance and photocatalytic activity is presented. At first, TNT layers (similar to 5 mu m thick, similar to 250 nm in ...

  • 2D MoTe2 nanosheets by atomic layer deposition: Excellent photo-electrocatalytic properties 

    Zazpe Mendioroz, Raúl; Sopha, Hanna Ingrid; Charvot, Jaroslav; Krumpolec, Richard; Rodriguez Pereira, Jhonatan; Michalička, Jan; Mistrík, Jan; Bača, Dominik; Motola, Martin; Bureš, Filip; Macák, Jan (Elsevier, 2021-06-01)
    Herein, the synthesis of MoTe2 nanosheets by means of Atomic Layer Deposition (ALD) is demonstrated for the first time. ALD enables tight control over the thickness and the composition of the deposited material, which are ...

  • Deposition of MoSe2 flakes using cyclic selenides 

    Charvot, Jaroslav; Zazpe Mendioroz, Raúl; Krumpolec, Richard; Rodriguez Pereira, Jhonatan; Pavliňák, David; Pokorný, Daniel; Klikar, Milan; Jelínková, Veronika; Macák, Jan; Bureš, Filip (Royal Society of Chemistry, 2021-06-03)
    The currently limited portfolio of volatile organoselenium compounds used for atomic layer deposition (ALD) has been extended by designing and preparing a series of four-, five- and six-membered cyclic silylselenides. Their ...

  • Wireless Anodization of Ti in Closed Bipolar Cells 

    Sopha, Hanna Ingrid; Rodriguez Pereira, Jhonatan; Čičmancová, Veronika; Macák, Jan (Wiley-VCH, 2021-08-01)
    In this work, the anodization of Ti foils in closed bipolar cells is shown for the first time. Depending on the applied potential, i. e. direct or alternating potential, TiO2 nanotube (TNT) layers can either be prepared ...

  • ALD coating of centrifugally spun polymeric fibers and postannealing: case study for nanotubular TiO2 photocatalyst 

    Říhová, Martina; Yurkevich, Oksana; Motola, Martin; Hromádko, Luděk; Spotz, Zdeněk; Zazpe Mendioroz, Raúl; Knez, Mato; Macák, Jan (Royal Society of Chemistry, 2021-08-07)
    This work describes the synthesis of highly photocatalytically active TiO2 tubes (TiTBs) by combining centrifugal spinning and atomic layer deposition (ALD). Poly(vinyl pyrrolidone) (PVP) fibers were first produced by ...

  • Amine modification of calcium phosphate by low-pressure plasma for bone regeneration 

    Kodama, Joe; Harumningtyas, Anjar Anggraini; Ito, Tomoko; Michlíček, Miroslav; Sugimoto, Satoshi; Kita, Hidekazu; Chijimatsu, Ryota; Ukon, Yuichiro; Kushioka, Junichi; Okada, Rintaro; Kamatani, Takashi; Hashimoto, Kunihiko; Tateiwa, Daisuke; Tsukazaki, Hiroyuki; Nakagawa, Shinichi; Takenaka, Shota; Makino, Takahiro; Sakai, Yusuke; Nečas, David; Zajíčková, Lenka; Hamaguchi, Satoshi; Kaito, Takashi (Nature Portfolio, 2021-09-01)
    Regeneration of large bone defects caused by trauma or tumor resection remains one of the biggest challenges in orthopedic surgery. Because of the limited availability of autograft material, the use of artificial bone is ...

  • Anodic TiO2 Nanotubes on 3D-Printed Titanium Meshes for Photocatalytic Applications 

    Sopha, Hanna Ingrid; Kashimbetova, Adelia; Hromádko, Luděk; Saldan, Ivan; Čelko, Ladislav; Montufar Jimenez, Edgar Benjamin; Macák, Jan (ACS Publications, 2021-10-27)
    In this work, large 3D Ti meshes fabricated by direct ink writing were wirelessly anodized for the first time to prepare highly photocatalytically active TiO2 nanotube (TNT) layers. The use of bipolar electrochemistry ...

  • Electrospun Biodegradable Nanofibers Coated Homogenously by Cu Magnetron Sputtering Exhibit Fast Ion Release. Computational and Experimental Study 

    Manakhov, Anton; Sitnikova, Natalya A.; Tsygankova, Alphiya R.; Alekseev, Alexander Yu.; Adamenko, Lyubov S.; Permyakova, Elizaveta; Baidyshev, Victor S.; Popov, Zakhar; Blahová, Lucie; Eliáš, Marek; Zajíčková, Lenka; Solovieva, Anastasiya (MDPI, 2021-12-08)
    Copper-coated nanofibrous materials are desirable for catalysis, electrochemistry, sensing, and biomedical use. The preparation of copper or copper-coated nanofibers can be pretty challenging, requiring many chemical steps ...

  • Facile synthesis of WO3 fibers via centrifugal spinning as an efficient UV-and VIS-light-driven photocatalyst 

    Hromádko, Luděk; Motola, Martin; Čičmancová, Veronika; Bulánek, Roman; Macák, Jan (Elsevier, 2021-12-15)
    This paper demonstrates, for the first time, synthesis of uniform and crystalline WO3 mesopomus fibers with a diameter of approximate to 1 mu m via centrifugal spinning. This was achieved by using a stable aqueous precursor ...

  • Effect of Low Molecular Weight Oxidized Materials and Nitrogen Groups on Adhesive Joints of Polypropylene Treated by a Cold Atmospheric Plasma Jet 

    Polášková, Kateřina; Klíma, Miloš; Jeníková, Zdeňka; Blahová, Lucie; Zajíčková, Lenka (MDPI, 2021-12-15)
    Polypropylene is a typical representative of synthetic polymers that, for many applications including adhesive joints, requires an increase in wettability and chemical surface reactivity. Plasma processing offers efficient ...

  • TiO2 nanotube layers decorated by titania nanoparticles as anodes for Li-ion microbatteries 

    Sopha, Hanna Ingrid; Ghigo, Clement; Ng, Siow Woon; Alijani, Mahnaz; Hromádko, Luděk; Michalička, Jan; Djenizian, Thierry; Macák, Jan (Elsevier, 2022-01-15)
    In this work, the utilization of TiO2 nanotube (TNT) layers decorated with TiO2 nanoparticles (NPs) as anodes in Li-ion microbatteries is reported for the first time. Such TiO2 NPs decorated TNT layers possess an increased ...

  • Evaluating the Use of TiO2 Nanoparticles for Toxicity Testing in Pulmonary A549 Cells 

    Báčová, Jana; Knotek, Petr; Kopecká, Kateřina; Hromádko, Luděk; Čapek, Jan; Nývltová, Pavlína; Brůčková, Lenka; Schröterová, Ladislava; Šestáková, Blanka; Palarčík, Jiří; Motola, Martin; Čížková, Dana; Bezrouk, Aleš; Handl, Jiří; Fiala, Zdeněk; Rudolf, Emil; Bílková, Zuzana; Macák, Jan; Roušar, Tomáš (Dove Press, 2022-09-30)
    Purpose: Titanium dioxide nanoparticles, 25 nm in size of crystallites (TiO2 P25), are among the most produced nanomaterials worldwide. The broad use of TiO2 P25 in material science has implied a request to evaluate their ...

  • Anodic TiO2 nanotube layers decorated by Pd nanoparticles using ALD: An efficient electrocatalyst for methanol oxidation 

    Bawab, Bilal; Thalluri, Sitaramanjaneya Mouli; Rodriguez Pereira, Jhonatan; Sopha, Hanna Ingrid; Zazpe Mendioroz, Raúl; Macák, Jan (Elsevier, 2022-10-10)
    Herein, we report the performance of Pd nanoparticles (NPs) prepared by Atomic Layer Deposition (ALD) as a catalyst for methanol electro-oxidation. Pd NPs were decorated onto anodic TiO2 nanotube (TNT) layers as supporting ...

  • The centrifugal spinning of vitamin doped natural gum fibers for skin regeneration 

    Říhová, Martina; Lepcio, Petr; Čičmancová, Veronika; Frumarová, Božena; Hromádko, Luděk; Bureš, Filip; Vojtová, Lucy; Macák, Jan (Elsevier, 2022-10-15)
    The study investigates the use of fiber carriers, based on biopolymeric gums as potential candidates for cosmetic and dermatological applications, in particular for skin regeneration. Gum arabic (GA), xanthan gum (XA), and ...

  • Scaling up anodic TiO2 nanotube layers - Influence of the nanotube layer thickness on the photocatalytic degradation of hexane and benzene 

    Sopha, Hanna Ingrid; Baudys, Michal; Hromádko, Luděk; Lhotka, Miloslav; Pavliňák, David; Krýsa, Josef; Macák, Jan (Elsevier, 2022-12-01)
    In this work, the preparation of homogenous TiO2 nanotube (TNT) layers with different thicknesses via anodization on Ti substrates with a large geometrical area of two times 5 cm x 10 cm (i.e. both sides of the Ti substrate) ...

  • Photocatalytic degradation of gaseous pollutants on nanostructured TiO2 films of various thickness and surface area 

    Baudys, Michal; Berthet, Eleonore; Macák, Jan; Lhotka, Miloslav; Krýsa, Josef (Springer Nature, 2023-04-01)
    This work deals with the preparation of TiO2 nanoparticulate layers of various mass (0.05 mg/cm(2) to 2 mg/cm(2)) from three commercial nanopowder materials, P90, P25 and CG 300, their characterisation (profilometry, BET ...

  • Investigating the thickness-effect of free-standing high aspect-ratio TiO2 nanotube layers on microwave-photoresponse using planar microwave resonators 

    Alijani, Mahnaz; Wiltshire, Benjamin D.; Sopha, Hanna Ingrid; Sarpanah, Zahra; Mistrík, Jan; Hromádko, Luděk; Zarifi, Mohammad H.; Macák, Jan (Elsevier, 2023-06-01)
    One-dimensional TiO2 nanotube (TNT) layers are a promising candidate for UV detection due to their distinctive anisotropic geometry which is effective for light harvesting and rapid carrier transport. Here, the photosensitivity ...