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Ionized Gas Plasmas under Ambient Conditions and their Interactions with Biological Matters

Event Date: January 15, 2014
Speaker: Dr. Michael Kong
Speaker Affiliation: Batten Endowed Chair in Bioelectrics and Professor of Electrical Engineering
Old Dominion University
Type: Joint Seminar
Time: 3;30 p.m.
Location: EE 170



Gas plasmas sustained at reduced pressure in a vacuum enclosure have been a key basic enabling technology for microelectronics, polymer and nanoscale science, coating and surface modification, optoelectronics, and light sources. The considerable practical advantage of achieving a similar gas plasma technology without the need for a vacuum enclosure is obvious, but this has been challenging due to much greater probability of plasma instabilities at the elevated gas pressure under ambient conditions. This presentation provides an overview of the considerable progress of the ambient pressure gas plasma technology over the past 20 years or so, from an initial struggle of containing plasma instabilities in electronegative gases (e.g. oxygen and water vapor), through development of many novel plasma sources including long plasmas in an endoscopic channel and an array of many plasma jets, to precision control of plasma chemistry delivered to a downstream sample.  The technology capability and its underpinning plasma physics illustrated in these examples have opened up exciting opportunities in many areas including environment, energy and healthcare.  As an illustration, this presentation discusses examples of how ambient pressure plasmas interact with mammalian and bacterial cells, biomolecules such as proteins, and the implications for infection control and wound healing. 



Brief Bio 

Michael Kong currently holds Batten Endowed Chair in Bioelectrics, Old Dominion University and is also a professor of Electrical Engineering at Department of Electrical and Computer Engineering of Old Dominion University.  Upong joining ODU towards the end of 2012, he established a Plasma Biomedicine group with an integrated laboratory facility blending plasma physics and chemistry, plasma sources engineering, neuroscience and cell biology, and molecular microbiology.  Prior to his move to the US, he held a Chair in Bioelectrics and was an associate Dean at Loughborough University, UK, where he established a 20-member strong Plasma and Pulsed Power Group and co-founded a campus-wide Centre for Biological Engineering with a research portfolio in plasma biomedicine, cell therapy and regenerative medicine.

Dr Kong is a founding director of the International Society for Plasma Medicine, a senior editor of IEEE Transactions on Plasma Science, and an editorial member for Plasma Sources Science and Technology, Plasma Chemistry and Plasma Processing, and Plasma Medicine Journal. He served as the general chair for the 2012 IEEE International Conference of Plasma Science in Scotland. He has published some 145 journal papers with an h-index of 39, and given more than 70 plenary/invited talks at international conferences and symposiums.  Dr Kong was a recipient of the inaugural International Society for Plasma Medicine Award in 2010, and is a Fellow of IEEE.