Results 41 to 50 of about 675 (151)

Numerical analysis of the effect of nitrogen and oxygen admixtures on the chemistry of an argon plasma jet operating at atmospheric pressure

New Journal of Physics, 2015
In this paper we study the cold atmospheric pressure plasma jet, called kinpen, operating in Ar with different admixture fractions up to 1% pure ${{{\rm N}}_{2}}$ , ${{{\rm O}}_{2}}$ and ${{{\rm N}}_{2}}$ + ${{{\rm O}}_{2}}$ .
W Van Gaens, S Iseni, A Schmidt-Bleker, K-D Weltmann, S Reuter, A Bogaerts   +5 more
doaj   +1 more source

Cold Physical Plasma-Mediated Fenretinide Prodrug Activation Confers Additive Cytotoxicity in Epithelial Cells

Antioxidants, 2023
Cold physical plasma is a partially ionized gas operated at body temperature and utilized for heat-sensitive technical and medical purposes. Physical plasma is a multi-component system consisting of, e.g., reactive species, ions and electrons, electric ...
Mohsen Ahmadi, Debora Singer, Felix Potlitz, Zahra Nasri, Thomas von Woedtke, Andreas Link, Sander Bekeschus, Kristian Wende   +7 more
doaj   +1 more source

The Hyaluronan Pericellular Coat and Cold Atmospheric Plasma Treatment of Cells

Applied Sciences, 2020
In different tumors, high amounts of hyaluronan (HA) are correlated with tumor progression. Therefore, new tumor therapy strategies are targeting HA production and degradation. In plasma medicine research, antiproliferative and apoptosis-inducing effects
Claudia Bergemann, Anna-Christin Waldner, Steffen Emmert, J. Barbara Nebe   +3 more
doaj   +1 more source

xCT (SLC7A11) expression confers intrinsic resistance to physical plasma treatment in tumor cells

Redox Biology, 2020
Cold physical plasma is a partially ionized gas investigated as a new anticancer tool in selectively targeting cancer cells in monotherapy or in combination with therapeutic agents. Here, we investigated the intrinsic resistance mechanisms of tumor cells
Sander Bekeschus, Sebastian Eisenmann, Sanjeev Kumar Sagwal, Yana Bodnar, Juliane Moritz, Broder Poschkamp, Ingo Stoffels, Steffen Emmert, Muniswamy Madesh, Klaus-Dieter Weltmann, Thomas von Woedtke, Rajesh Kumar Gandhirajan   +11 more
doaj   +1 more source

Plasma-Derived Reactive Species Shape a Differentiation Profile in Human Monocytes

Applied Sciences, 2019
Background: Monocyte-derived macrophages are key regulators and producers of reactive oxygen and nitrogen species (ROS/RNS). Pre-clinical and clinical studies suggest that cold physical plasma may be beneficial in the treatment of inflammatory conditions
Eric Freund, Juliane Moritz, Matthias Stope, Christian Seebauer, Anke Schmidt, Sander Bekeschus   +5 more
doaj   +1 more source

Activation of Murine Immune Cells upon Co-culture with Plasma-treated B16F10 Melanoma Cells

Applied Sciences, 2019
Recent advances in melanoma therapy increased median survival in patients. However, death rates are still high, motivating the need of novel avenues in melanoma treatment.
Katrin Rödder, Juliane Moritz, Vandana Miller, Klaus-Dieter Weltmann, Hans-Robert Metelmann, Rajesh Gandhirajan, Sander Bekeschus   +6 more
doaj   +1 more source

Decontaminative Properties of Cold Atmospheric Plasma Treatment on Collagen Membranes Used for Guided Bone Regeneration

Journal of Functional Biomaterials, 2023
Background cold atmospheric plasma (CAP) is known to be a surface-friendly yet antimicrobial and activating process for surfaces such as titanium. The aim of the present study was to describe the decontaminating effects of CAP on contaminated collagen ...
Aydin Gülses, Lina Dohrmann, Oral Cenk Aktas, Juliane Wagner, Salih Veziroglu, Tim Tjardts, Torge Hartig, Kim Rouven Liedtke, Jörg Wiltfang, Yahya Acil, Christian Flörke   +10 more
doaj   +1 more source

Nitric oxide density distributions in the effluent of an RF argon APPJ: effect of gas flow rate and substrate

New Journal of Physics, 2014
The effluent of an RF argon atmospheric pressure plasma jet, the so-called kinpen, is investigated with focus on the nitric-oxide (NO) distribution for laminar and turbulent flow regimes.
S Iseni, S Zhang, A F H van Gessel, S Hofmann, B T J van Ham, S Reuter, K-D Weltmann, P J Bruggeman   +7 more
doaj   +1 more source

On the Liquid Chemistry of the Reactive Nitrogen Species Peroxynitrite and Nitrogen Dioxide Generated by Physical Plasmas

Biomolecules, 2020
Cold physical plasmas modulate cellular redox signaling processes, leading to the evolution of a number of clinical applications in recent years. They are a source of small reactive species, including reactive nitrogen species (RNS).
Giuliana Bruno, Sebastian Wenske, Jan-Wilm Lackmann, Michael Lalk, Thomas von Woedtke, Kristian Wende   +5 more
doaj   +1 more source

Radiation Driven Chemistry in Biomolecules—is (V)UV Involved in the Bioactivity of Argon Jet Plasmas?

Frontiers in Physics, 2021
Cold physical plasmas, especially noble gas driven plasma jets, emit considerable amounts of ultraviolet radiation (UV). Given that a noble gas channel is present, even the energetic vacuum UV can reach the treated target.
G. Bruno, G. Bruno, S. Wenske, H. Mahdikia, T. Gerling, T. von Woedtke, T. von Woedtke, K. Wende   +7 more
doaj   +1 more source