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Eo, Young-Joo,Lee, Tae Ho,Kim, Se Yun,Kang, Jeung Ku,Han, Young Soo,Bae, Byeong-Soo Wiley Subscription Services, Inc., A Wiley Company 2005 Journal of polymer science Part B, Polymer physics Vol.43 No.7
<P>The molecular structures of methacryl-grafted polysiloxane resins from 3-(trimethoxysilyl)propyl methacrylate (MPTS) and diphenylsilanediol (DPSD) were determined by theoretical computation and experimental measurement. The molecular structures obtained from theoretical computation coincided well with those from experimental measurement, and we found that the structural changes in the resins could be controlled by precursor compositions. While molecular weights and polysiloxane chain lengths of the resins increase with DPSD contents, their molecular sizes do not vary significantly. In the present study, molecular sizes and shapes of the resins with various compositions are hypothesized theoretically and proven experimentally. © 2005 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 43: 827–836, 2005</P>
FABRICATION OF CuInSe₂(CIS) THIN FILM SOLAR CELL VIA A NON-VACUUM PROCESS
Young-Joo Eo,Wonha Lee,Kyunhwan Kim,SeJin Ahn,Ara Cho,Jihye Gwak,Kyunghoon Yoon,Keeshik Shin,Seung Kyu Ahn,Jun Sik Cho,Ju Hyung Park,Jin Su Yu,Kihwan Kim,Se Youn Moon,Hyo Rim Jung,Jin Hyeok Kim,Jae Ho 한국신재생에너지학회 2014 AFORE Vol.2014 No.-
( Mi-young Park ),( Min Hee Jung ),( Eun Young Eo ),( Seokjoong Kim ),( Sang Hoon Lee ),( Yeon Joo Lee ),( Jong Sun Park ),( Young Jae Cho ),( Jin Haeng Chung ),( Cheol Hyeon Kim ),( Ho Il Yoon ),( Ja 대한결핵 및 호흡기학회 2016 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.121 No.0
Tyrosine kinase inhibitors (TKIs) such as gefitinib and erlotinib are effective against lung adenocarcinomas harboring epidermal growth factor receptor (EGFR) mutations. However, cancer cells can develop resistance to these agents with prolonged ex-posure; in over 50% of cases, this is attributable to the EGFR T790M mutation. Moreover, additional resistance mutations can arise with the use of new drugs. Cancer cell lines with specific mutations can enable the study of resistance mechanisms. In this study, we introduced the EGFR T790M mutation into the PC9 human lung cancer cell line which has a deletion in exon 19 of the EGFR gene by the clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated (Cas)9-mediated genome editing. EGFR pyrosequencing revealed that PC9-EGFR T790M cell clones had a higher T790M muta-tion rate than PC9-G cells generated by long-term exposure to gefitinib; moreover, resistance in these clones was comparable to or higher than that in PC9-G cells. The clones were also highly sensitive to the 3rd-generation EGFR TKI (AZD9291), which is cytotoxic to lung cancer cells with EGFR T790M. The CRISPR/Cas9 programmable nuclease system can be used to generate various cancer cell lines with specific mutations that can facilitate studies on resistance mechanisms and drug efficacy.
어영주(Young Joo Eo),송수민(Soomin Song),이상민(Sang Min Lee),조아라(Ara Cho),안승규(Seung Kyu Ahn),안세진(SeJin Ahn),김기환(Kihwan Kim),윤재호(Jae Ho Yun),정인영(In Young Jeong),유진수(Jin Soo Yoo),조준식(Jun Sik Cho),박주형(Joo Hyung 한국신재생에너지학회 2021 한국신재생에너지학회 학술대회논문집 Vol.2021 No.7
유연 박막 태양전지 모듈은 유리 기판을 봉지재로 사용하는 기존의 결정질 실리콘 태양전지 모듈과는 달리 플라스틱 소재를 봉지재로 사용한다. 플라스틱 소재는 유리 기판에 비해 기밀 및 수밀 특성이 나쁘기 때문에 수분 침투에 의한 태양전지 모듈의 열화가 쉽게 발생한다. 그러나, 유연 박막 태양전지 모듈의 내열 내습 시험(Damp heat test)에 의한 고장 유형(Failure Mode)의 분석은 연구가 미흡한 실정이다. 본 연구에서는 먼저, 기존의 상용 유연 박막 태양 전지 모듈의 장기 안정성을 내열 내습 시험으로 평가하였다. 이후, 이를 바탕으로 실제 유연 박막 태양전지 모듈을 제작하여 내열 내습 시험을 진행함으로써 고장 유형을 분석하고 개선 방안을 도출하였다.
( Eo Gin Lee ),( Dong Joo Hyun ),( Jae Yang Park ),( Kyu Young Seo ),( Sang Eun Lee ),( Hee Jung Lee ),( Moon Soo Yoon ) 대한피부과학회 2013 대한피부과학회 학술발표대회집 Vol.65 No.2
Background: Microneedle fractional radiofrequency (RF) induces deep dermal heating and leaves the epidermis less affected, which showed therapeutic effects for wrinkle, pore and various scars. Sublative fractional RF induces not only superficial fractional ablation of upper epidermis but also upper dermal remodeling, which had been reported to show improvement of skin aging. Objectives: We evaluated efficacy and safety of combined microneedle fractional RF and sublative fractional RF for acne scars in Asian skin. Methods: 20 patients (mean age 23.65±2.94, skin phototype III-IV) received three consecutive combined microneedle fractional RF and sublative fractional RF at 4-week intervals over 12 weeks. Investigator`s global assessment and complications were assessed up to 2 months after last treatment by standardized photographs. Subjective improvement and pain score were also assessed. Results: Follow-up results revealed that 4 patients had clinical improvement of 76% to 100%, 10 had improvements of 51% to 75%, 6 had improvements of 26% to 50%. The mean duration of post-therapy crusting or scaling was 5.21 days and post-therapy erythema lasted 2.52 days. Conclusion: We suggest that combined microneedle fractional RF and sublative fractional RF may provide a new treatment algorithm for acne scars in Asians. The limitations are the small number of patients.
( Eo Gin Lee ),( Dong Joo Hyun ),( Jae Yang Park ),( Kyu Young Seo ),( Sang Eun Lee ),( Hee Jung Lee ),( Moon Soo Yoon ) 대한피부과학회 2013 대한피부과학회 학술발표대회집 Vol.65 No.2
Background: Presently, only few tests have been published for evaluating the efficacy of skin cleansers, and they are neither standardized nor widely-accepted. Objectives: We developed a new in-vivo test method for the semi-quantitative evaluation of the efficacy of cleansing products and evaluated its validity and reliability. Methods: Five different skin cleansers were tested on the forearms of 25 healthy volunteers according to the washing procedure using standard dirt. We evaluated the residual amount of standard dirt on the cyanoacrylate skin surface stripping sample using a dermoscopy and an image analysis program. We also graded the cleansing power through a pattern analysis of dermoscopic images. For the comparison regarding the validity, we obtained data according to other preexisting methods using a Chromameter, Mexameter and Glossymeter. Results: The cleansing efficacy of five skin cleansers which was assessed by our new method showed significant correlations with the results from other preexisting methods using a Chromameter and Mexameter (Pearson correlation coefficient 0.826 and 0.738, respectively, P<0.001). This new method also showed a high internal consistency reliability (Cronbach`s alpha=0.997). Conclusion: We presented a new in-vivo method for assessing the cleansing efficacy of skin cleansers which was shown to be reliable and valid. Further studies are required to establish a standardized method to objectify cleansing effectiveness of skin cleansers.