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Kim, Soo,Kim, Chunjoong,Jhon, Young-In,Noh, Jae-Kyo,Vemuri, Sesha Hari,Smith, Robert,Chung, Kyung Yoon,Jhon, Myung S.,Cho, Byung-Won The Royal Society of Chemistry 2012 Journal of materials chemistry Vol.22 No.48
<P>Li<SUB>2</SUB>MnO<SUB>3</SUB>-stabilized LiCoO<SUB>2</SUB> electrode materials were synthesized using the method of mechanochemical process. Li<SUB>2</SUB>MnO<SUB>3</SUB> was prepared and the mechanochemical process was carried out with LiCoO<SUB>2</SUB>, which yielded the layered–layered integrated structure nanocomposites. X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, and high-resolution transmission electron microscopy studies confirmed the structural integration of 0.5Li<SUB>2</SUB>MnO<SUB>3</SUB>·0.5LiCoO<SUB>2</SUB> electrode materials. We also performed the high temperature heat treatment, where our 0.5Li<SUB>2</SUB>MnO<SUB>3</SUB>·0.5LiCoO<SUB>2</SUB> electrode materials showed improvement in the discharge capacity (∼180 mA h g<SUP>−1</SUP>) with good cycleability. To obtain a physical insight into the performance of the nanocomposite structure, we carried out first principles calculations to obtain activation energy barriers of Li<SUP>+</SUP> de-/intercalation, which suggested that utilizing both Li<SUB>2</SUB>MnO<SUB>3</SUB> and LiCoO<SUB>2</SUB> components can enhance the Li<SUP>+</SUP> diffusion for the layered–layered integrated structure.</P> <P>Graphic Abstract</P><P>Li<SUB>2</SUB>MnO<SUB>3</SUB>-stabilized LiCoO<SUB>2</SUB> electrode materials were synthesized using the method of mechanochemical process. First principles calculations were carried out to further obtain the physical insight of the layered-layered system. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c2jm35654f'> </P>
Krishnan, Hari B.,Kang, Beom Ryong,Hari Krishnan, Ammulu,Kim, Kil Yong,Kim, Young Cheol American Society for Microbiology 2007 Applied and environmental microbiology Vol.73 No.1
<B>ABSTRACT</B><P>Phenazine production was engineered in <I>Rhizobium etli</I> USDA9032 by the introduction of the <I>phz</I> locus of <I>Pseudomonas chlororaphis</I> O6. Phenazine-producing <I>R. etli</I> was able to inhibit the growth of <I>Botrytis cinerea</I> and <I>Fusarium oxysporum</I> in vitro. Black bean inoculated with phenazine-producing <I>R. etli</I> produced brownish Fix<SUP>−</SUP> nodules.</P>
Biflavones and Furanone Glucosides from <i>Zabelia tyaihyonii</i>
Jang, Hari,Lee, Jin Woo,Jin, Qinghao,Kim, Soo‐,Young,Lee, Dongho,Hong, Jin Tae,Kim, Youngsoo,Lee, Mi Kyeong,Hwang, Bang Yeon WILEY‐VCH Verlag 2015 Helvetica chimica acta Vol.98 No.10
<P><B>Abstract</B></P><P>Two new biflavones, (a<I>R</I>)‐3′‐methoxycupressuflavone (<B>1</B>) and (a<I>R</I>)‐3′,3′′′‐dimethoxycupressuflavone (<B>2</B>), and two new furanone glucosides, zabeliosides A and B (<B>3</B> and <B>4</B>, resp.), along with two known biflavones, cupressuflavone (<B>5</B>) and amentoflavone (<B>6</B>), were isolated from the leaves of <I>Zabelia tyaihyonii.</I> The structures of the new compounds were elucidated by 1D‐ and 2D‐NMR, HR‐ESI‐MS, and circular dichroism.</P>
Evaluation of Skin Permeation and Accumulation Profiles of a Highly Lipophilic Fatty Ester
Bhandari, Krishna Hari,Lee, Dong-Xun,Newa, Madhuri,Yoon, Sung-Il,Kim, Jung-Sun,Kim, Dae-Duk,Kim, Jung-Ae,Yoo, Bong-Kyo,Woo, Jong-Soo,Lyoo, Won-Seok,Lee, Jae-Hwi,Choi, Han-Gon,Yong, Chul-Soon 대한약학회 2008 Archives of Pharmacal Research Vol.31 No.2
The aim was to evaluate the skin permeation and accumulation profiles of a highly lipophilic fatty ester using the combination of various permeation enhancing techniques to study the potential of highly lipophilic fatty esters as local topical agents. Permeation and accumulation profiles of ketorolac stearate (C18:0) were studied using solubility improved formulation, supersaturated solution of permeant in enhancer vehicle, lipophilic receptor solution, enhancer pretreatment, and the removal of stratum corneum and delipidization of skins. Impermeability and minimal skin accumulation of ketorolac stearate could delineate a preliminary possibility for designing safer topical agents without systemic absorption.
Bhandari, Krishna Hari,Newa, Madhuri,Yoon, Sung II,Kim, Jung Sun,Jang, Ki Young,Kim, Jung-Ae,Yoo, Bong Kyo,Woo, Jong Soo,Lee, Jae Hwi,Kim, Dae Duk,Choi, Hang Gon,Yong, Chul Soon Pharmaceutical Society of Japan 2007 BIOLOGICAL & PHARMACEUTICAL BULLETIN Vol.30 No.11
<P>The purpose of this study was to evaluate the physicochemical properties, skin permeation and accumulation profiles of model lipophilic ketorolac fatty ester (esters) prodrugs. Ketorolac linoleate (C18:2), oleate (C18:1) and stearate (C18:0) were evaluated for their solubility, capacity factor, enzymatic hydrolysis, chemical stability, and skin permeation and accumulation profiles using the combination of common permeation enhancing techniques such as the use of supersaturated solution of permeants in the enhancer vehicle, lipophilic receptor solution, enhancer pretreatment of skins, removal of stratum corneum and delipidization of skins <I>etc</I>. Esters were highly lipophilic, chemically stable for the duration of observation, enzymatically unstable in hairless mouse skin/liver homogenates and plasma, and impermeable into the receptor solution. Absence of skin permeation, relative enzymatic stability during permeation and chemical stability of these esters could delineate preliminary possibilities for designing safer topical agents without systemic absorption.</P>