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Plasma Processing of Soft Materials for Development of Inorganic/Organic Hybrid Devices
Yuichi Setsuhara,Ken Cho,Kosuke Takenaka 한국표면공학회 2010 한국표면공학회 학술발표회 초록집 Vol.2010 No.11
Plasma generation and control technologies for development of inorganic/organic hybrid devices have been developed with multiple low-inductance antenna (LIA) modules, as a promising candidate of ultra-large-area and high-density plasma sources for next-generation processing of hybrid flexible devices. Properties of argon-oxygen mixture plasmas sustained with multiple LIA units have been investigated and surface modifications of polymer substrates using the plasmas have been carried out. Ion energy distribution at the sheath edge of the argon-oxygen mixture plasmas showed considerable suppression of ion energies as small as or less than 10 eV. Effects of plasma exposure on surface modification and/or degradation of polymers have been examined using hard x-ray photoelectron spectroscopy (HXPES) in terms of chemical bonding states of the polymer surface.
Bispectral index-guided propofol sedation during endoscopic ultrasonography
Ayana Okamoto,Ken Kamata,Takeshi Miyata,Tomoe Yoshikawa,Rei Ishikawa,Tomohiro Yamazaki,Atsushi Nakai,Shunsuke Omoto,Kosuke Minaga,Kentaro Yamao,Mamoru Takenaka,Yasutaka Chiba,Toshiharu Sakurai,Naoshi 대한소화기내시경학회 2022 Clinical Endoscopy Vol.55 No.4
Background/Aims: Bispectral index (BIS) monitors process and display electroencephalographic data are used to assess the depth ofanesthesia. This study retrospectively evaluated the usefulness of BIS monitoring during endoscopic ultrasonography (EUS). Methods: This study included 725 consecutive patients who underwent EUS under sedation with propofol. BIS monitoring was usedin 364 patients and was not used in 361. The following parameters were evaluated: (1) median dose of propofol; (2) respiratory and circulatorydepression; (3) occurrence of body movements; (4) awakening score >8 at the time; and (5) awakening score 2 hours afterleaving the endoscopy room. Results: The BIS group received a significantly lower median dose of propofol than the non-BIS group (159.2 mg vs. 167.5 mg;p=0.015) in all age groups. For patients aged ≥75 years, the reduction in heart rate was significantly lower in the BIS group than in thenon-BIS group (1.2% vs. 9.1%; p=0.023). Moreover, the occurrence of body movements was markedly lower in the BIS group than inthe non-BIS group (8.5% vs. 39.4%; p<0.001). Conclusions: During EUS examination, BIS monitoring is useful for maintaining a constant depth of anesthesia, especially in patients75 years of age or older.