Jozef Stefan Institute

Tokai National Higher Education and Research System

University of Ljubljana

National Institute of Biology

Joz̃stefan Institute

National University Corporation Tokai National Higher Education and Research System

Univerza V Ljubljani

Institut Jozef Stefan

Tomas Bata University in Zlín

Rok Zaplotnik

Miran Mozetic

Gregor Primc

Alenka Vesel

Masaru Hori

Martin Petkovsek

Matevz Dular

Metka Bencina

Katja Lakota

Snezna Sodin-Semrl

Ita Junkar

David Dobnik

Arijana Filipic

Nina Recek

Ion Gutierrez Aguirre

Veronika Kralj-Iglic

Ales Iglic

Osamu Oda

Roman Stukelj

Petr Stloukal

Vladimír Sedlarík

Marián Lehocký

Petr Humpolícek

A method for deposition of nitrogen-doped nanocarbon comprises disposing molten polymer and a heated substrate in a plasma reactor; providing dense nitrogen-containing plasma in the plasma reactor in a space between the molten polymer and the heated substrate; and allowing the dense nitrogen-containing plasma to interact with both the molten polymer and the heated substrate to form a film of nitrogen-containing nanocarbon on the heated substrate.

Method for producing N-doped carbon nanomesh

An energy-efficient disinfection or sterilisation of contaminated liquid, such as water contaminated with viruses or microbes includes an asymmetric configuration of a cavitation nozzle made from dielectric material that enables the formation of a single, stable cavitation bubble of a large volume. A low-pressure gaseous plasma is continuously formed inside the cavitation bubble by electrodes to prevent contact of the metallic electrode with liquid water and Ohmic heating of the contaminated water. The electrodes are connected to a high voltage power supply. The power supply enables formation of a continuous stable gaseous discharge inside the cavitation bubble and radicals and radiation useful for destruction of viruses to the levels below the current US EPA standard in few minutes, while the temperature of liquid water remains practically unchanged. Use is not only for hospitals and pharmaceutical companies but the food industry and agriculture as well.

Method and device for disinfection of liquid

The present disclosure relates to methods for depositing vertically oriented carbon nanowalls (CNWs) using non-equilibrium gases such as gaseous plasma. Methods are disclosed for rapid deposition of uniformly distributed nanowalls on large surfaces of substrates using ablation of bulk carbon materials by reactive gaseous species, formation of oxidized carbon-containing gaseous molecules, ionization of said molecules and interacting said molecules, neutral or positively charged, with a substrate. The CNWs prepared are useful in different applications such as fuel cells, lithium ion batteries, photovoltaic devices and sensors of specific gaseous molecules.

Carbon nanostructured materials and methods for forming carbon nanostructured materials

Methods for modification of surface wettability of fluorine-containing polymers by sequential treatments first with gaseous plasma rich in ultraviolet radiation, and then oxidation using neutral reactive oxidative species. The methods are rapid and permit treatment of fluorine-containing polymers of any shape and size including 'infinite' materials such as foils. A surface layer of an object made from a fluorine-containing polymer is depleted of fluorine upon interaction with gaseous plasma rich in ultraviolet radiation. The depleted surface layer is then exposed to reactive oxygen species such as neutral oxygen atoms in the ground state. The wettability of objects made from or containing fluorine-containing polymers treated according to the methods of the present disclosure is close to the theoretical limit for smooth polymers well functionalized with polar functional groups. Unlike conventional treatment of fluorine-containing polymers with oxygen plasma, the methods of the present disclosure do not produce hazardous gases such as oxy or peroxy fluorinated carbon compounds.

Method of increasing the hydrophilicity of a fluorine-containing polymer

The present invention improves the surface modification of NiTi alloys used for instance in medical devices through treatment with hydrogen particles in a suitable gaseous discharge and with oxygen atoms. The technique according to the present invention provides the formation of biocompatible solely titanium oxide layer thus preventing nickel to be present in the top surface layer. Furthermore this enables nanostructuring of the surface which depends on the treatment conditions. Devices made from NiTi alloys treated with the method according to the present invention have improved biocompatibility; platelets do not readily attach and activate on such surfaces and the thrombus formation rate is reduced in comparison with extensively used untreated NiTi alloys.

Method for treatment medical devices made from nickel-titanium (NiTi) alloys

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Ljubljana, Slovenia

Rok Zaplotnik