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Yizao Wan,Jin Li,Zhiwei Yang,Haiyong Ao,Lingling Xiong,Honglin Luo 한국물리학회 2018 Current Applied Physics Vol.18 No.8
In this study, we report the construction of a ternary flexible nanocomposite of bacterial cellulose/graphene/polyaniline (BC/GE/PANI) via a facile two-step strategy. Bacterial cellulose/graphene (BC/GE) is first prepared by a novel in situ membrane-liquid-interface method, in which the three-dimensional continuous BC nanofibers can be maintained and the introduced GE can improve the mechanical properties mainly due to the uniform dispersion of GE in the BC matrix. To construct the effectively interconnected conductive paths between separated GE nanosheets, polyaniline (PANI) is simultaneously deposited on the surfaces of both BC nanofibers and GE nanosheets to obtain BC/GE/PANI with excellent electrical conductivity. It is found that the as-prepared BC/GE/PANI has an electrical conductivity of 1.7 ± 0.1 S cm−1, which is higher than most of PANI-based composites. It is believed that the BC/GE/PANI nanocomposite possesses great potential for applications in electromagnetic shielding and flexible electrodes.
정다정(Dahjung Chung),김홍림(Honglin Jin),최윤식(Yoonsik Choe) 한국방송·미디어공학회 2011 한국방송공학회 학술발표대회 논문집 Vol.2011 No.7
본 논문에서는 스테고 영상의 화질을 개선하기 위해 픽셀 값의 주변 통계적 특성을 고려한 보다 정확한 계수 값을 사용한 픽셀 변형 방법을 제안한다. 이와 같은 방법을 사용함으로써 기존 방법의 삽입 용량을 유지하면서도 스테고 영상의 왜곡 정도가 줄어 PNSR 수치가 기본 방법보다 높아지게 된다.
[6]-Gingerol Suppresses Colon Cancer Growth by Targeting Leukotriene A<sub>4</sub> Hydrolase
Jeong, Chul-Ho,Bode, Ann M.,Pugliese, Angelo,Cho, Yong-Yeon,Kim, Hong-Gyum,Shim, Jung-Hyun,Jeon, Young-Jin,Li, Honglin,Jiang, Hualiang,Dong, Zigang American Association for Cancer Research 2009 Cancer Research Vol.69 No.13
<P>[6]-Gingerol, a natural component of ginger, exhibits anti-inflammatory and antitumorigenic activities. Despite its potential efficacy in cancer, the mechanism by which [6]-gingerol exerts its chemopreventive effects remains elusive. The leukotriene A(4) hydrolase (LTA(4)H) protein is regarded as a relevant target for cancer therapy. Our in silico prediction using a reverse-docking approach revealed that LTA(4)H might be a potential target of [6]-gingerol. We supported our prediction by showing that [6]-gingerol suppresses anchorage-independent cancer cell growth by inhibiting LTA(4)H activity in HCT116 colorectal cancer cells. We showed that [6]-gingerol effectively suppressed tumor growth in vivo in nude mice, an effect that was mediated by inhibition of LTA(4)H activity. Collectively, these findings indicate a crucial role of LTA(4)H in cancer and also support the anticancer efficacy of [6]-gingerol targeting of LTA(4)H for the prevention of colorectal cancer.</P>