Two-dimensional concentration distribution of reactive oxygen species transported through a tissue phantom by atmospheric-pressure plasma-jet irradiation

Toshiyuki Kawasaki, Akihiro Sato, Shota Kusumegi, Akihiro Kudo, Tomohiro Sakanoshita, Takuya Tsurumaru, Giichiro Uchida, Kazunori Koga, Masaharu Shiratani

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

The two-dimensional concentration distribution of reactive oxygen species (ROSs) transported through an agarose-film tissue phantom by atmospheric-pressure plasma-jet irradiation is visualized using a KI-starch gel reagent. Oxygen addition to helium enhances ROS transportation through the film. A radial ROS distribution pattern at the plasma-irradiated film surface changes into a doughnut-shaped pattern after passing through the film. The ROS transportation speed is 0.14-0.2mm/min. We suggest that there are two types of ROS transportation pathways in the plasma-irradiated film: linear and circular. The majority of ROSs are transported through the circular pathway. ROS concentration distributions changed markedly with irradiation distance. Diffusive ROS transportation due to a concentration gradient is negligible in plasma-irradiated films.

Original languageEnglish
Article number076202
JournalApplied Physics Express
Volume9
Issue number7
DOIs
Publication statusPublished - Jul 2016

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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