Search results
Download
FARKA Zdeněk CEITEC – Central European Institute of Technology, Masaryk University, 625 00 Brno, Czech Republic
Co-authors:
HLAVÁČEK Antonín
MICKERT Matthias J.
SKLÁDAL Petr
GORRIS Hans H.
Abstract:
Photon-upconverting nanoparticles (UCNPs) have become an attractive label in immunoassays because their anti-Stokes luminescence can be excited by the NIR laser and detected in the VIS region without optical background interference. Further advantages of UCNPs include good photostability, large anti-Stokes shifts, and multiple narrow emission bands that can be used for multiplexed detection. [..]
Read more
KROISOVA Dora Technical University of Liberec, Institute for Nanomaterials, Advanced Technologies and Innovation, Liberec, Czech Republic, EU
Abstract:
In nature, we can find a variety of systems by which plants and animals are defending against dangers coming from their surroundings. The aim of this contribution is to show three different types of nanostructures, which are one, two or three-dimensional and show their function in defense of objects in nature. [..]
Read more
KOUSAL Jaroslav Charles University, Faculty of Mathematics and Physics, Prague, Czech Republic, EU
Co-authors:
KOLÁŘOVÁ RAŠKOVÁ Zuzana
SEDLAŘÍKOVÁ Jana
STLOUKAL Petr
SOLAŘ Pavel
KRTOUŠ Zdeněk
CHOUKOUROV Andrei
SEDLAŘÍK Vladimír
LEHOCKÝ Marian
Abstract:
Classical “wet“ chemistry methods can produce polymers with well-defined molecular structure, but many types of polymers are difficult to prepare with significant degree of crosslinking without residues of the crosslinking agent. On the other hand, plasma polymers usually have very high degree of crosslinking but nearly random molecular structure.Plasma assisted vapour thermal deposition combines both methods. [..]
Read more
NEUHÖFEROVÁ Eva Institute of Microbiology, Czech Academy of Sciences, Czech Republic, EU
Co-authors:
PETRÁKOVÁ Vladimíra
VOCETKOVÁ Karolína
KINDERMANN Marek
KŘIVOHLAVÁ Romana
BENSON Veronika
Abstract:
Non-healing wounds are serious complication in diabetic patients and represent an attractive challenge for development of suitable carrier system possessing constant and localized release of therapeutic biomolecule into the wound without any undesired side effects. Given the fact that these non-healing wounds are result of impaired balance in metalloproteinases synthesized by immune cells residing the wounds, gene therapy offering knock down of such enzymes is of great interest.Here we challenged a development of functional and biocompatible wound dressing enabling controlled release of trackable carrier loaded with therapeutic siRNA. [..]
Read more
Bitti Giuseppe Charles University, Second Faculty of Medicine, V Úvalu 84, 150 06 Prague 5, Czech Republic, EU
Co-authors:
Abate Marianna
Neuhöferová Eva
Kindermann Marek
Petráková Vladimíra
Boccellino Mariarosaria
Quagliuolo Lucio
Filova Eva
Veronika Benson
Caraglia Michele
Amler Evzen
Abstract:
The microRNA(miRNA)-34a is an important regulator of tumor suppression. It controls the expression of several target proteins involved in cell cycle, differentiation and apoptosis, and antagonizes processes that are necessary for basic cancer cell viability as well as cancer stemness, metastasis, and chemoresistance. It is downregulated in numerous cancer types, including prostatic cancer, and inhibits malignant growth by repressing genes involved in various oncogenic signaling pathways. [..]
Read more
KELLNEROVÁ Eva University of Defence, Brno, Czech Republic, EU
Co-authors:
VEČEŘA Zbyněk
KELLNER Josef
ZEMAN Tomáš
HYLÁK Čestmír
Abstract:
Military filters introduced in the Army of the Czech Republic are most commonly used when working with combat equipment and weapons and in manoeuvring activities in the terrain with the use of explosives or chemical warfare agents. During such activities, a large number of pollutants in the form of nanoparticles are released. [..]
Read more
ROSSNER Pavel Jr. Institute of Experimental Medicine, Czech Academy of Sciences, Prague 4, Czech Republic, EU
Co-authors:
VRBOVA Kristyna
STRAPACOVA Simona
ROSSNEROVA Andrea
AMBROZ Antonin
BRZICOVA Tana
LIBALOVA Helena
JAVORKOVA Eliska
ZAJICOVA Alena
HOLAN Vladimir
KULICH Pavel
VECERA Zbynek
MIKUSKA Pavel
COUFALIK Pavel
KRUMAL Kamil
CAPKA Lukas
DOCEKAL Bohumil
SERY Omar
MISEK Ivan
MACHALA Miroslav
TOPINKA Jan
Abstract:
We analyzed gene expression changes in the lungs and the immunological response in splenocytes of mice exposed by inhalation of ZnO nanoparticles (NP). Adult female ICR mice were treated for three days and three months, respectively. [..]
Read more
SHELEMIN Artem Charles University, Faculty of Mathematics and Physics, Prague, Czech Republic, EU
Co-authors:
NIKITIN Daniil
KOUSAL Jaroslav
VAIDULYCH Mykhailo
PLESKUNOV Pavel
CHOUKOUROV Andrei
SLAVINSKA Danka
BIEDERMAN Hynek
Abstract:
This work investigates plasma instabilities occurring in a Gas Aggregation Cluster Source (GAS) and correlates them with the formation and growth of hydrocarbon nanoparticles (NPs). For this aim, special configuration of the GAS was employed, which allows for simultaneous measurements of the discharge voltage, the optical emission (OES) and the mass spectra (MS). [..]
Read more
HOUDEK Jakub University of Pardubice, Faculty of Chemical Technology, Department of General and Inorganic Chemistry, Pardubice, Czech Republic, jakub.houdek1@student.upce.cz
Co-authors:
VLCEK Miroslav
ZELENKA Jiri
Abstract:
Zinc oxide is multifunctional material used for decades in industrial scale due to its unique physical properties. By appropriately chosen morphology of particles, we can get additional value from this “traditional” material. [..]
Read more
ŠOLTÝS Ján lEE SAS – Institute of Electrical Engineering, Slovak Academy of Sciences, Bratislava, Slovak Republic, EU
Co-authors:
PRECNER Marián
FEDOR Ján
CAMBEL Vladimír
Abstract:
This work reports on two novel SPM methods which both use tailored dual AFM tips. The first method, so called dual-tip magnetic force microscopy (DT-MFM), is based on two-pass scanning with switching nonmagnetic and magnetic tip during the scan. [..]
Read more
TOMAN Jozef Department of Physical Electronics, Faculty of Science, Masaryk University, Kotlářská 2, 611 37, Brno, Czech Republic, jtoman@mail.muni.cz
Co-authors:
JAŠEK Ondřej
PRÁŠEK Jan
JURMANOVÁ Jana
Abstract:
In the present work, 2-dimensional graphene nanosheets were synthesized, characterized and subsequently modified for gas sensor and electrochemical measurements. We used microwave plasma torch discharge (2.45 GHz) operating at atmospheric pressure conditions. [..]
Read more
KRÁL Karel Institute of Physics, Academy of Sciences of Czech Republic, v.v.i., Prague, Czech Republic
Co-authors:
MENŠÍK Miroslav
Abstract:
The effect of negative differential resistance can be detected experimentally e.g. in some material systems based on polymers. [..]
Read more
OSIČKA Josef Centre of Polymer Systems, University Institute, Tomas Bata University in Zlin, Trida T. Bati 5678, 760 01 Zlin, Czech Republic EU
Co-authors:
MRLÍK Miroslav
ILČÍKOVÁ Markéta
MOSNÁČEK Jaroslav
Abstract:
Electrorheological (ER) suspension are special class of systems, those physical properties, such as viscosity can be tuned using external electric field strength. Generally, they are two-phase systems consisting of solid polarizable particles and liquid insulating medium. [..]
Read more
MRLÍK Miroslav Centre of Polymer Systems, University Institute, Tomas Bata University in Zlin, Trida T. Bati 5678, 760 01 Zlin, Czech Republic
Co-authors:
OSIČKA Josef
SEDLAČÍK Michal
MOSNÁČEK Jaroslav
Abstract:
This study is focused on the synthesis of core-shell type of magnetic particles, where magnetic core is carbonyl iron (CI) microparticles and conducting shell is poly(2-(1H-pyrrole-1-yl)ethyl methacrylate) (PPEMA) synthesized using atom transfer radical polymerization (ATRP) technique. In order to obtain core-shell particles the surface-initiated (SI)-ATRP is used, where both benefits, magnetic behaviour of core and conducting behaviour of shell, are advantages for their intended application as materials for electromagnetic shielding of piezo-resistors. [..]
Read more
TIAGULSKYI Stanislav Institute of Photonics and Electronics of the Czech Academy of Sciences, Chaberska 57, CZ-18251, Prague 8, Czech Republic
Co-authors:
YATSKIV Roman
GRYM Jan
SCHENK Antonín
ROESEL David
VANIŠ Jan
HAMPLOVA Marie
Abstract:
Vertical periodic arrays of ZnO nanorods are prepared by hydrothermal growth on GaN templates patterned by focused ion beam. Electro-physical properties of a single vertically-oriented ZnO nanorod are investigated by measuring the current-voltage characteristics using a nanoprobe in a scanning electron microscope. [..]
Read more
SHULGA Aleksandra RUDN University - Peoples’ Friendship University of Russia, Moscow, Russian Federation
Co-authors:
BUTUSOV Leonid
NAGOVITSYN Ilia
CHUDINOVA Galina
HAYRULLINA Indira
KURILKIN Vladimir
KOCHNEVA Margarita
Abstract:
Substrates containing zinc oxide and different amounts of gadolinium on the surface of the zinc oxide nano particles for biosensorics were obtained for the first time by the standard sol-gel technique. This is a new material has not yet been extensively studied.In this paper, we present the results of the photoluminescent response of the zinc oxide surface when it is modified by various amounts of gadolinium during the classical sol-gel method of the surface obtaining. [..]
Read more
VÁCHA Jan Technical university of Liberec, Studentská 2, Liberec 1, Czech Republic, jan.vacha@tul.cz, petr.lenfeld@tul.cz
Co-authors:
LENFELD Petr
Abstract:
This work examines possible correlation between electromagnetic shielding efficiency and resistivity of thermoplastic polymer nanocomposites with carbon nanotubes. Polyoxymethylen was used as basic matrix to which nanoparticles in the weight percentage ratio were added. [..]
Read more
KOPEL Pavel Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic, EU
Co-authors:
CERNEI Natalia
KLEJDUS Borivoj
ADAM Vojtech
Abstract:
In our study, we aimed to synthesize superparamagnetic nanoparticles (PMPs) able to isolate and immobilize and thus preconcentrate flavonoids for subsequent analysis. We report the optimal conditions such as different pH of Britton Robinson buffer, temperature and time of incubation on the isolation of different types of flavonoids, such as Genkwanin and Pratol from extracts of freshwater algae. [..]
Read more
CVEK Martin Centre of Polymer Systems, University Institute, Tomas Bata University in Zlin, Trida T. Bati 5678, 760 01 Zlin, Czech Republic, EU
Co-authors:
MRLIK Miroslav
ILCIKOVA Marketa
MOSNACEK Jaroslav
SEDLACIK Michal
Abstract:
Electrorheological (ER) fluids are fascinating materials with a wide range of potential applications. However, low performance in electric field and poor sedimentation stability are the most serious limitations for these applications. [..]
Read more
HAYRULLINA Indira RUDN University - Peoples’ Friendship University of Russia, Moscow, Russia
Co-authors:
BUTUSOV Leonid
NAGOVITSYN Ilia
CHUDINOVA Galina
SHULGA Aleksandra
KURILKIN Vladimir
KOCHNEVA Margarita
Abstract:
Novel ZnO – Gd3+ materials were prepared by sol-gel method and photoluminescence properties of their films were studied for biomedical application. Biosensor’s properties ZnO – Gd3+ films were investigated under the action of rabbit immunoglobulin G (IgG) in concentrations 10-9, 10-11 and 10-13 M in solution depositing on the surface of film. [..]
Read more