Journal
APPLIED PHYSICS LETTERS
Volume 96, Issue 10, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3352316
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Atmospheric pressure helium plasma treated human hepatocytes exhibit distinctive zones of necrotic and live cells separated by a void. We propose that plasma induced necrosis is attributed to plasma species such as oxygen radicals, charged particles, metastables and/or severe disruption of charged cytoskeletal proteins. Interestingly, uncharged cytoskeletal intermediate filaments are only minimally disturbed by plasma, elucidating the possibility of plasma induced electrostatic effects selectively destroying charged proteins. These bona fide plasma effects, which inflict alterations in specific subcellular structures leading to necrosis and cellular detachment, were not observed by application of helium flow or electric field alone. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3352316]
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