NDLI: Feed gas humidity versus ambient humidity — What matters more in plasma medicine and what makes cells care?

Content Provider	IEEE Xplore Digital Library
Author	Winter, J. Hammer, M.U. Dunnbier, M. Tresp, H. Wende, K. Iseni, S. Masur, K. Weltmann, K. Reuter, S.
Copyright Year	2013
Description	Author affiliation: INP Greifswald e.V. & Center for Innovation Competence plasmatis, Greifswald, Germany (Winter, J.; Hammer, M.U.; Dunnbier, M.; Tresp, H.; Wende, K.; Iseni, S.; Masur, K.; Weltmann, K.; Reuter, S.)
Abstract	Summary form only given. Humidity plays an important role in plasma chemistry and influences the production of a variety of reactive species like OH, $H_{2}O_{2}$ or $O_{3}.$ This is especially true in the fast growing field of plasma medicine where patients are supposed to be treated under ambient conditions with changing humidity concentrations. Also when humidity is present in the feed gas of the plasma source - unwanted or intended - a change in the plasma produced active species is obtained. In this paper the influence of ambient humidity and feed gas humidity on the effluent of an atmospheric pressure argon plasma jet is investigated by means of optical emission spectroscopy, Fourier transformed infrared spectroscopy inside a white cell with an effective absorption length of 19.2 m, as well as absorption spectroscopy in the UV and IR spectral range. With these techniques gas phase production rates of $H_{2}O_{2},$ $O_{3}$ and $NO_{2}$ as well as spatial distributions of excited plasma species like Ar, O, $N_{2}$ and OH are determined in dependence of the humidity concentration. On basis of the presented results it is shown that feed gas humidity is more relevant to consider than ambient humidity. However, when constant feed gas humidity concentrations are experimentally provided changes in ambient humidity become relevant again. In order to give an impression of how crucial feed gas humidity influence is on indirect plasma treated human skin cells results of a viability assay are $presented^{1}.$ These results are correlated to the liquid phase production of $H_{2}O_{2}$ molecules as well as $O_{2}and$ OH radicals in liquid cell growth medium. Applied measurement techniques are colorimetric assays for determination of the $H_{2}O_{2}$ density and electron spin resonance spectroscopy for $O_{2}and$ OH radical densities. A remarkable correlation of the cell viability with $H_{2}O_{2}$ concentration was found whereas $O_{2}$ and OH do not seem to have a direct effect.
Starting Page	1
Ending Page	1
File Size	116205
Page Count	1
File Format	PDF
ISBN	9781467351713
ISSN	07309244
DOI	10.1109/PLASMA.2013.6633321
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Humidity Plasmas Feeds Spectroscopy Production Argon Absorption
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

The Influence of Feed Gas Humidity Versus Ambient Humidity on Atmospheric Pressure Plasma Jet-Effluent Chemistry and Skin Cell Viability

Detection of various active species in Ar-diluted NH atmospheric-pressure plasma by ultraviolet absorption spectroscopy

Properties of Reactive Argon Plasmas at Atmospheric Pressure

X-ray absorption spectroscopy of X-pinch plasmas

Combination ambient gas plasma treatment and chemotherapy

Production of Carbon Nanotubes by Microwave Plasma-Torch at Atmospheric Pressure

Plasma Characteristics Due to Helium and Oxygen Mixing in Argon-Based Atmospheric Plasmas

Optical emission spectroscopy diagnosis of acetone species in atmospheric pressure argon plasma

The Effects of Multidimensional Structures on the Radiative Emission and Absorption Characteristics of Argon Gas-Puff Z Pinches

Feed gas humidity versus ambient humidity — What matters more in plasma medicine and what makes cells care?

Similar Documents

The Influence of Feed Gas Humidity Versus Ambient Humidity on Atmospheric Pressure Plasma Jet-Effluent Chemistry and Skin Cell Viability

Detection of various active species in Ar-diluted NH atmospheric-pressure plasma by ultraviolet absorption spectroscopy

Properties of Reactive Argon Plasmas at Atmospheric Pressure

X-ray absorption spectroscopy of X-pinch plasmas

Combination ambient gas plasma treatment and chemotherapy

Production of Carbon Nanotubes by Microwave Plasma-Torch at Atmospheric Pressure

Plasma Characteristics Due to Helium and Oxygen Mixing in Argon-Based Atmospheric Plasmas

Optical emission spectroscopy diagnosis of acetone species in atmospheric pressure argon plasma

The Effects of Multidimensional Structures on the Radiative Emission and Absorption Characteristics of Argon Gas-Puff Z Pinches

Feed gas humidity versus ambient humidity — What matters more in plasma medicine and what makes cells care?