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Chlorhexidine Gluconate Solution 의 殺園效果에 關한 寶驗的 硏f究
鄭文植(Moon Shik Zong),鄭圭寬(Kyu Kwan Chong),金泰植(Tae Shik Kim),金貞天(Chung Ock Kim) 한국환경보건학회 1987 한국환경보건학회지 Vol.13 No.1
Owing to the modification of testing methods of disinfectants or antiseptics, variations of bacteria according to characteristics of regions and resistance changes of bacteria, it is necessary that the bactericìdal activities of disinfectants or antiscptics should be reevaluated nowadays. This study was carried out to reevaluate in the vitro bactericidal activity of Chlorhexidine gluco. nate solution. The results of experiment were summarized as follows. 1. For Chlorhexidine gluconate solution, minimal inhibitory concentrations of total bacteria taken from sewage water and Legionella bozemanii were 2.0 x 10-3%, 1.0 x 10-2%, respectively and were comparatively high. Minimal inhibitory concentration of Shige/la flexneri was 1.6 x 10-4%, and was comparatively low. 2. For total bacteria taken from sewage water, it was killed within 15 minute in 0 .1 % Chlorhexidine gluc‘)nate solution w hen number of cells was 1 .6 x 107 fm1. 3. For 0.0125% Ch10rhexidine gluconate solution, decimal reduction times of Ps. aeruginosa. S. typhi. E. Coli were 45 sec, 25 sec, 18 sec repectively. For 1%, 0.125% Chlorhexidine gluconate solution, deciml!l reduction times of Legionella bozemanii were 10 sec, 45 sec respectively. 4. There was significantdifference in the bactericidal activity of Chlorhexidine gluconate solution according to temperature. 5. Phenol coefficient of Chlorhexidine gluconate solution as using Staph. aureus was 100 and comparatively rugher than that of other disinfectants. 6. In comparison with other disinfectants‘ Legionella bozemanii was killed witrun 5 minutes in 0.02% KMn04 and 0 .1 25% CWorhexidine gluconate solution but was not ki1Ied within 3 minutes in 1% O-cresoI. 1 % PhenoI.
전도성고분자-CNT 복합체를 활성물질로 사용한 빛을 일에너지로 바꾸는 동력장치 제작에 관한 연구
김세진 ( Sae Jin Kim ),김정보 ( Jeong Bo Kim ),박준호 ( Joon Ho Park ),임연주 ( Youn Joo Lim ),홍남정 ( Nam Jeong Hong ),정규관 ( Kyu Kwan Zong ) 전북대학교 과학교육연구소 2014 과학과 과학교육 논문지 Vol.39 No.1
In this study, new light dbsorbing CNT-polyprrole composites was synthesized by coating CNT with polypyrrole and driving devides was constructed by attaching the composites on the back side of PDMS based shuttle, The model shuttle was floated on the water and the concentrated light by a focusing lcns was irradiated on the surface of the composite of the shuttle which brought surface tension mediated conversion of light to work. The nano structure od the composites used as an active material was characterzed by SEM, Drving speeds the model shuttle were compared according to its shape size and content of superhydrophobic material. The model shuttle equipped with fish-shape, small size, and CNT-polyprrole composite Was found to move the fastest among them. Development of more energy-efficient light absorbing composite and control of steering the direction of the shuttle are needed for further improvement of thc mocel shuttle.