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Jeon, Min Ji,Kim, Won Gu,Choi, Yun Mi,Kwon, Hyemi,Song, Dong Eun,Lee, Yu-Mi,Sung, Tae-Yon,Yoon, Jong Ho,Hong, Suck Joon,Baek, Jung Hwan,Lee, Jeong Hyun,Ryu, Jin-Sook,Kim, Tae Yong,Shong, Young Kee,Chu Issued for the Endocrine Society by the Williams & 2015 The Journal of clinical endocrinology & metabolism Vol.100 No.9
<P>The prognosis of papillary thyroid cancer (PTC) with cervical lymph node (LN) metastasis has changed with increased detection of subclinical metastatic LNs. The number and size of metastatic LNs were proposed as new prognostic factors in PTC with cervical LN metastasis (N1).</P>
Effect of HAM-12 Treatment on Cellular Morphology of Bovine Ovary in In Vitro
Sung Jai Park,Jun Kyu Son,Kwang Soo Baek,Soo Bong Park,Byeong Soon Jeon,Hyeon Shup Kim,Tai Young Her,Byoung Ho Park,Seok Jin Kang,Joong Hui Lee,Wang Shik Lee,You Lim Choi 한국동물생명공학회(구 한국동물번식학회) 2008 발생공학 국제심포지엄 및 학술대회 Vol.2008 No.1
Sang Un Park,Deok-Jong Ahn,Hyeon-Jeong Jeon,Tae Ryong Kwon,Hyoun-Sub Lim,Bo-Seong Choi,Kwang-Hyun Baek,Hanhong Bae 고려인삼학회 2012 Journal of Ginseng Research Vol.36 No.2
An light-emitting diode (LED)-based light source was used as a monochromatic light source to determine the responses of raw ginseng roots (Panax ginseng Meyer) to specifi c emission spectra with respect to the production of ginsenosides. The ginsenoside content in the ginseng roots changed in response to the LED light treatments at 25℃ relative to the levels in the control roots that were treated in the dark or at 4℃ for 7 d. Ginseng roots were exposed to LEDs with four different peak emission wavelengths, 380, 450, 470, and 660 ㎚, in closed compartments. Compared with the control 4℃-treated roots, roots that were treated with 450 and 470 ㎚ light showed a signifi cantly increased production of ginsenosides (p<0.05), with increases of 64.9% and 74.1%, respectively. The contents of the ginsenosides Rb2, Rc, and Rg₁ were signifi cantly higher (p<0.05) in the 450 and 470 ㎚-treated root samples. The ratio of protopanaxadiol ginsenosides (Rb₁, Rb₂, Rc, and Rd) to protopanaxatriol ginsenosides (Rg₁, Rg₂, Re, and Rf) was signifi cantly higher (p<0.05) in the 450 and 470 ㎚-treated root samples than in the control 4℃-treated roots. This is the fi rst report that demonstrates the increase and conversion of ginsenosides in raw ginseng roots in response to exposure to LED light.
Jeon, In-Yup,Kang, Sang-Wook,Tan, Loon-Seng,Baek, Jong-Beom Wiley Subscription Services, Inc., A Wiley Company 2010 Journal of polymer science Part A, Polymer chemist Vol.48 No.14
<P>Polyaniline (PANi)-grafted multiwalled carbon nanotube (MWNT) composite is prepared by a two-step reaction sequence. MWNT is first functionalized with 4-aminobenzoic acid in polyphosphoric acid/phosphorous pentoxide as a “direct” Friedel-Crafts acylation reaction medium. The resultant 4-aminobenzoyl-functionalized MWNT is then treated with aniline using ammonium persulfate/aqueous hydrochloric acid to promote a chemical oxidative polymerization, leading to PANi-grafted MWNT composite. The resultant composite is characterized by elemental analysis, Fourier-transform infrared spectroscopy, wide-angle X-ray diffraction, scanning electron microscopy, transmission electron microscopy, thermogravimetric analysis, UV–vis absorption spectroscopy, fluorescence spectroscopy, cyclic voltammetry, and electrical conductivity measurement. The thermooxidative stability and electrical conductivity of PANi-grafted MWNT composite are improved compared to those of PANi. Specifically, the electrical conductivity of PANi-grafted MWNT is improved 10–900 times depending upon the level of doping. The capacitance of the composite is also greatly enhanced. © 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 3103–3112, 2010</P> <B>Graphic Abstract</B> <P>Polyaniline was grafted on the surface of 4-aminobenzoyl-functionalized multiwalled carbon nanotube. The resultant polyaniline-grafted multiwalled carbon nanotube composite displayed improved thermooxidative stability and electrical conductivity compared to those of polyaniline. Specifically, the electrical conductivity was improved 10–900 times depending upon the level of doping. The capacitance of the composite is also greatly enhanced. <img src='wiley_img_2010/0887624X-2010-48-14-POLA24091-gra001.gif' alt='wiley_img_2010/0887624X-2010-48-14-POLA24091-gra001'> </P>
Baek, Youn‐,Kyoung,Yoo, Seung Min,Kang, Taejoon,Jeon, Hwan‐,Jin,Kim, Kyounghwan,Lee, Ji‐,Sun,Lee, Sang Yup,Kim, Bongsoo,Jung, Hee‐,Tae WILEY‐VCH Verlag 2010 Advanced functional materials Vol.20 No.24
<P><B>Abstract</B></P><P>A new strategy for fabricating highly ordered chitosan–Au core–shell nanopatterns with tunable surface plasmon resonance (SPR) properties is developed. This strategy combines fabrication of a chitosan nanopattern by using a soft‐nanoimprint technique with selective deposition of Au nanoparticles onto the patterned chitosan surface. The SPR response can be tuned by controlling the features of the resulting Au shell/polymer hybrid pattern, which makes these materials potentially useful in ultrasensitive optical sensors for molecular detection.</P>