title: Atmospheric-Pressure Plasma Interaction with Soft Materials as Fundamental Processes in Plasma Medicine.
abstract: Molecular-structure variation of organic materials irradiated with atmospheric pressure He plasma jet have been investigated. Optical emission spectrum in the atmospheric-pressure He plasma jet has been measured. The spectrum shows considerable emissions of He lines, and the emission of O and N radicals attributed to air. Variation in molecular structure of Polyethylene terephthalate (PET) film surface irradiated with the atmospheric-pressure He plasma jet has been observed via X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FT-IR). These results via XPS and FT-IR indicate that the PET surface irradiated with the atmospheric-pressure He plasma jet was oxidized by chemical and/or physical effect due to irradiation of active species.
authors.forename: Kosuke
authors.initials: K
authors.lastname: Takenaka
authors.forename: Atsushi
authors.initials: A
authors.lastname: Miyazaki
authors.forename: Giichiro
authors.initials: G
authors.lastname: Uchida
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Setsuhara
mesh_terms: D001274:Atmospheric Pressure; D006371:Helium / Q000737:chemistry / Q000627:therapeutic use; D058626:Plasma Gases / Q000737:chemistry* / Q000627:therapeutic use; D011093:Polyethylene Terephthalates / Q000737:chemistry*
chemical_list: D058626:Plasma Gases; D011093:Polyethylene Terephthalates; D006371:Helium