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Kim, Jung Kyu,Shin, Kahee,Cho, Sung M.,Lee, Tae-Woo,Park, Jong Hyeok Royal Society of Chemistry 2011 ENERGY AND ENVIRONMENTAL SCIENCE Vol.4 No.4
<P>Tungsten trioxide (WO<SUB>3</SUB>) films with a mesoporous morphology, high transparency, and monoclinic phase crystallinity were prepared using polyethyleneglycol (PEG) as a surfactant and their photoelectrochemical properties were measured. By controlling the weight ratio of the tungsten precursor to PEG, a sphere-like WO<SUB>3</SUB> nanoparticle film with high transparency can be synthesized. The photocurrent responses of the films under 1 sun solar light illumination were measured. Due to the high transparency of the WO<SUB>3</SUB> photoanode, it is possible to fabricate a tandem cell composed of a WO<SUB>3</SUB>/Pt bipolar electrode connected with a dye-sensitized solar cell. Unassisted water splitting from the tandem cell was demonstrated but the maximum current density was exhibited at around +0.4 V (<I>vs.</I> Pt).</P> <P>Graphic Abstract</P><P>We report the fabrication of a tandem cell composed of a WO<SUB>3</SUB>/Pt bipolar electrode connected with a dye-sensitized solar cell and demonstrate unassisted water splitting from the tandem cell. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c0ee00469c'> </P>
Comparison of Methods for Determining ABO Blood Type in Cynomolgus Macaques (Macaca fascicularis)
Kim, Tae M.,Park, Hyojun,Cho, Kahee,Kim, Jong S.,Park, Mi K.,Choi, Ju Y.,Park, Jae B.,Park, Wan J.,Kim, Sung J. AMERICAN ASSOCIATION FOR LABORATORY ANIMAL SCIENCE 2015 Journal of the American Association for Laboratory Vol.54 No.3
No expression of porcine endogenous retrovirus after pig to monkey xenotransplantation
Seongsoo Hwang,Yi-Deun Jung,Kahee Cho,Sun-A Ock,Keon-Bong Oh,Heui-Soo Kim,Ik-Jin Yun,Curie Ahn,Jin-Ki Park,Seoki Im 한국실험동물학회 2014 Laboratory Animal Research Vol.30 No.2
This study was performed to investigate the expression of two porcine endogenous retrovirus (PERV) elements, PERV gag and full-length conserved PERV, in blood cells collected periodically from organrecipient monkeys that underwent pig to non-human primate xenotransplantation. The heart and kidney—respectively acquired from α-1,3-galactosyltransferase knockout (GT-KO) pigs that survived for24 and 25 days—were xenografted into cynomolgus monkeys. The two PERV elements expressed in the xenografted GT-KO pig organs were not present in the blood cells of the recipient monkeys. In the present study, we deduced that PERVs are not transmitted during GT-KO pig to monkey xenotransplantation.
Song, Keun Man,Kim, Do-Hyun,Kim, Jong-Min,Cho, Chu-Young,Choi, Jehyuk,Kim, Kahee,Park, Jinsup,Kim, Hogyoug IOP Pub 2017 Nanotechnology Vol.28 No.22
<P>We demonstrated an InGaN/GaN-based, monolithic, white light-emitting diode (LED) without phosphors by using morphology-controlled active layers formed on multi-facet GaN templates containing polar and semipolar surfaces. The nanostructured surface morphology was controlled by changing the growth time, and distinct multiple photoluminescence peaks were observed at 360, 460, and 560 nm; these features were caused by InGaN/GaN-based multiple quantum wells (MQWs) on the nanostructured facets. The origin of each multi-peak was related to the different indium (In) compositions in the different planes of the quantum wells grown on the nanostructured GaN. The emitting units of MQWs in the LED structures were continuously connected, which is different from other GaN-based nanorod or nanowire LEDs. Therefore, the suggested structure had a larger active area. From the electroluminescence spectrum of the fabricated LED, monolithic white light emission with CIE color coordinates of <I>x</I>?=?0.306 and <I>y</I>?=?0.333 was achieved via multi-facet control combined with morphology control of the metal organic chemical vapor deposition-selective area growth of InGaN/GaN MQWs.</P>