Dual Role of Hydrogen in Low Temperature Plasma Enhanced Carbon Nanotube Growth

2015 ◽  
Vol 119 (32) ◽  
pp. 18293-18302 ◽  
Author(s):  
Johannes Vanpaemel ◽  
Marleen H. van der Veen ◽  
Daire J. Cott ◽  
Masahito Sugiura ◽  
Inge Asselberghs ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Low Temperature ◽  
Dual Role ◽  
Low Temperature Plasma ◽  
Temperature Plasma ◽  
Carbon Nanotube Growth ◽  
Nanotube Growth

Atomic-Scale Analysis on the Role of Molybdenum in Iron-Catalyzed Carbon Nanotube Growth

Nano Letters ◽  
2009 ◽  
Vol 9 (11) ◽  
pp. 3810-3815 ◽  
Author(s):  
Hideto Yoshida ◽  
Takuma Shimizu ◽  
Tetsuya Uchiyama ◽  
Hideo Kohno ◽  
Yoshikazu Homma ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Atomic Scale ◽  
Scale Analysis ◽  
Carbon Nanotube Growth ◽  
Nanotube Growth

scholarly journals The Role of Mitochondria in the Dual Effect of Low-Temperature Plasma on Human Bone Marrow Stem Cells: From Apoptosis to Activation of Cell Proliferation

2020 ◽  
Vol 10 (24) ◽  
pp. 8971
Author(s):  
Sergej V. Belov ◽  
Yakov P. Lobachevsky ◽  
Yurij K. Danilejko ◽  
Aleksej B. Egorov ◽  
Alexander V. Simakin ◽  
...  
Keyword(s):  
Stem Cells ◽  
Bone Marrow ◽  
Low Temperature ◽  
Bone Marrow Stem Cells ◽  
Human Bone ◽  
Human Bone Marrow ◽  
Low Temperature Plasma ◽  
Dual Effect ◽  
Temperature Plasma

The potential use of low-temperature plasma (LTP) for therapeutic purposes has aroused the concern of many researchers. This paper examines the effect of LTP on the morphofunctional state of human bone marrow stem cells (BMSC). It has been established that LTP-induced oxidative stress has a dual effect on the state of stem cells. On the one hand, a cell culture exposed to LTP exhibits the progression of a destructive processes, which is manifested by the perturbation of the cell’s morphology, the initiation of lipid peroxidation and the accumulation of products of this process, like diene conjugates and malondialdehyde, as well as the induction of mitochondrial dysfunction, leading to cell death. On the other hand, the effect of LTP on BMSC located at a distance from the plasma is accompanied by the activation of proliferative processes, as evidenced by the tendency of the activity of mitochondrial biogenesis and fission/fusion processes to increase. The paper discusses the role of mitochondria and reactive oxygen species (ROS) in the cellular response to LTP.

Metal catalyst-free low-temperature carbon nanotube growth on SiGe islands

2005 ◽  
Vol 86 (23) ◽  
pp. 233110 ◽  
Author(s):  
T. Uchino ◽  
K. N. Bourdakos ◽  
C. H. de Groot ◽  
P. Ashburn ◽  
M. E. Kiziroglou ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Low Temperature ◽  
Metal Catalyst ◽  
Catalyst Free ◽  
Carbon Nanotube Growth ◽  
Nanotube Growth

Role of plasma activation in kinetics of carbon nanotube growth in plasma-enhanced chemical vapor deposition

2012 ◽  
Vol 111 (7) ◽  
pp. 074307 ◽  
Author(s):  
Irina V. Lebedeva ◽  
Andrey A. Knizhnik ◽  
Alexey V. Gavrikov ◽  
Alexey E. Baranov ◽  
Boris V. Potapkin ◽  
...  
Keyword(s):  
Chemical Vapor Deposition ◽  
Carbon Nanotube ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Plasma Activation ◽  
Carbon Nanotube Growth ◽  
Nanotube Growth ◽  
Kinetics Of

scholarly journals Investigation of the role of chemically active radicals in the antibacterial properties of a low-temperature plasma jet at ambient pressure mixed with argon and air

2021 ◽  
Vol 2064 (1) ◽  
pp. 012109
Author(s):  
N A Ashurbekov ◽  
Z M Isaeva ◽  
K M Rabadanov ◽  
G S Shakhsinov ◽  
A A Murtazaeva ◽  
...  
Keyword(s):  
Low Temperature ◽  
Plasma Torch ◽  
Ambient Pressure ◽  
Antibacterial Properties ◽  
Plasma Jet ◽  
Plasma Source ◽  
Biological Tissues ◽  
Low Temperature Plasma ◽  
Temperature Plasma

Abstract The work is devoted to the study of a low-temperature plasma jet of atmospheric pressure in a mixture of air with argon, used in plasma medicine. The intensities of the spectral emission bands of OH– (309 nm), N2 (337 nm), and N2 (356 nm) in different parts of the plasma jet were investigated depending on the argon flow rate and the amplitude of voltage pulses at the electrodes of the dielectric barrier discharge. The antibacterial effect of such a plasma jet on the surface of biological tissues has been experimentally investigated. Numerical simulation of ionization processes in the studied plasma source has been performed in the COMSOL Multiphysics software using. The dynamics of the distribution of excited molecules in the plasma torch as well as the kinetic plasma processes inside the plasma torch affecting the spatial distribution of its main characteristics have been analyzed.

scholarly journals Environmental Transmission Electron Microscopy Study on the Role of Impurities in Carbon Nanotube Growth

2010 ◽  
Vol 16 (S2) ◽  
pp. 1270-1271
Author(s):  
H Yoshida ◽  
T Shimizu ◽  
T Uchiyama ◽  
H Kohno ◽  
S Takeda
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Carbon Nanotube ◽  
Microscopy Study ◽  
Electron Microscopy Study ◽  
Transmission Electron Microscopy Study ◽  
Transmission Electron ◽  
Carbon Nanotube Growth ◽  
Nanotube Growth

Extended abstract of a paper presented at Microscopy and Microanalysis 2010 in Portland, Oregon, USA, August 1 – August 5, 2010.

Role of Transition Metal Catalysts in Single-Walled Carbon Nanotube Growth in Chemical Vapor Deposition

2003 ◽  
Vol 107 (44) ◽  
pp. 12161-12164 ◽  
Author(s):  
Yoshikazu Homma ◽  
Yoshiro Kobayashi ◽  
Toshio Ogino ◽  
Daisuke Takagi ◽  
Roichi Ito ◽  
...  
Keyword(s):  
Chemical Vapor Deposition ◽  
Carbon Nanotube ◽  
Transition Metal ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Transition Metal Catalysts ◽  
Single Walled Carbon Nanotube ◽  
Carbon Nanotube Growth ◽  
Nanotube Growth

The role of precursor gases on the surface restructuring of catalyst films during carbon nanotube growth

2007 ◽  
Vol 37 (1-2) ◽  
pp. 1-5 ◽  
Author(s):  
S. Pisana ◽  
M. Cantoro ◽  
A. Parvez ◽  
S. Hofmann ◽  
A.C. Ferrari ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Surface Restructuring ◽  
Carbon Nanotube Growth ◽  
Nanotube Growth
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