標題: Ar/O-2 Argon-Based Round Atmospheric-Pressure Plasma Jet on Sterilizing Bacteria and Endospores
作者: Lin, Z. -H.
Tschang, C. -Y. Tobias
Liao, K. -C.
Su, C. -F.
Wu, J. -S.
Ho, M. -T.
機械工程學系
Department of Mechanical Engineering
關鍵字: APPJ;sterilization;inactivation;bacteria;endospore
公開日期: 1-Dec-2016
摘要: In this paper, we want to develop and characterize a round argon-based nonthermal atmospheric-pressure plasma jet (APPJ) with an application of sterilization. We measured the basic properties of APPJ by an alcohol thermometer, an optical emission spectrometer (OES), a high-voltage probe and a Rogowski coil. The plasma jet temperature at the tube exit is lower than 37 degrees C, which will not induce damage to living tissue. The plasma absorbed power is about 2.7 W. The OES data indicate that this APPJ has a relatively high intensity of hydroxyl radicals (OH) in postdischarge region. Furthermore, we applied this device to inactivate the bacteria (E. coli and B. subtilis) and endospore (B. subtilis endospore). In addition, the trace amount of oxygen addition (0.04%) into working gas can not only enhance the OH radicals but also speed up the killing of bacteria and endospore. The results of D value and scanning electron microscope images show its great potential for the use of general sterilization in the future.
URI: http://dx.doi.org/10.1109/TPS.2016.2601940
http://hdl.handle.net/11536/145883
ISSN: 0093-3813
DOI: 10.1109/TPS.2016.2601940
期刊: IEEE TRANSACTIONS ON PLASMA SCIENCE
Volume: 44
起始頁: 3140
結束頁: 3147
Appears in Collections:Articles