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Tailored BiVO_(4)/In_(2)O_(3)nanostructures with boosted charge separation ability toward unassisted water splitting

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Carbon Energy 2023年第6期5卷 45-59页

作者： Mi Gyoung Lee Jin Wook Yang Ik Jae Park Tae Hyung Lee Hoonkee Park Woo Seok Cheon Sol ALee Hyungsoo Lee Su Geun Ji jun min suh.jooho moon Jin Young Kim Ho Won Jang Department of Materials Science and Engineering Research Institute of Advanced MaterialsSeoul National UniversitySeoulRepublic of Korea Country Department of Applied Physics Sookmyung Women's UniversitySeoulRepublic of Korea Department of Materials Science and Engineering Yonsei UniversitySeoulRepublic of Korea Advanced Institute of Convergence Technology Seoul National UniversitySuwonRepublic of Korea

The development of new heterostructures with high photoactivity is a breakthrough for the limitation of solar-driven water ***,we first introduce indium oxide(In_(2)O_(3))nanorods(NRs)as a novel electron transport layer for bismuth vanadate(BiVO_(4))with a short charge diffusion ***_(2)O_(3)NRs reinforce the electron transport and hole blocking of BiVO_(4),surpassing the state-of-the-art photoelectrochemical performances of BiVO_(4)-based ***,a tannin-nickel-iron complex(TANF)is used as an oxygen evolution catalyst to speed up the reaction *** final TANF/BiVO_(4)/In_(2)O_(3)NR photoanode generates photocurrent densities of 7.1 mAcm^(−2) in sulfite oxidation and 4.2 mA cm^(−2) in water oxidation at 1.23 V versus the reversible hydrogen ***,the“artificial leaf,”which is a tandem cell with a perovskite/silicon solar cell,shows a solar-to-hydrogen conversion efficiency of 6.2%for unbiased solar water *** reveal significant advances in the photoactivity of TANF/BiVO_(4)/In_(2)O_(3)NRs from the tailored nanostructure and band structure for charge dynamics.

关键词： bismuth vanadate heterojunction indium oxide nanostructure photoelectrochemical water splitting

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Tc-99m ciprofloxacin imaging in diagnosis of chronic bacterial prostatitis

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Asian Journal of Andrology 2003年第3期5卷 179-183页

作者： Ji-Kan Ryu Seong-min Lee Do-Whan Seong jun-Kyu suh Sungeun Kim Wonsick Choe Yeonsook moon Soo-Hwan Pai Department of Urology Inha University School of MedicineJncheon 400103Korea Department of Nuclear Medicine Inha University School of MedicineIncheon 400103Korea Department of Clinical Patholgy Inha University School of MedicineJncheon 400103Korea

Aim: To investigate the value of Tc-99m ciprofloxacin imaging in the differential diagnosis of chronic bacterial prostatitis. Methods: The study included 4 normal subjects as the negative controls, 2 patients with acute prostatitis or cystourethritis as the positive controls and 59 patients diagnosed as chronic bacterial prostatitis or chronic pelvic pain syndrome by traditional laboratory tests. In every subject, the single photon emission computerized tomography images were obtained 3 h after intravenous injection of Tc-99m Ciprofloxacin. The results of the imaging were compared with those of laboratory tests. Results: On the images, negative uptake was observed in all normal subjects, while strong hot uptake, in the whole prostate of acute prostatitis patients and in the whole urethra of acute cystourethritis patients. In 13 (68 %) of 19 patients categorized as chronic bacterial prostatitis by standard laboratory tests, hot uptake with less intensity than that of acute prostatitis was observed in the prostate area around the prostatic urethra. Negative uptake in the prostate was observed in 6 of 19 patients (32 %) categorized as chronic bacterial prostatitis. Interestingly, hot uptake in the prostate was exhibited in 28 (70 %) of the 40 patients categorized as chronic pelvic pain syndrome. Conclusion: Tc-99m ciprofloxacin imaging is helpful in the differential diagnosis of prostatitis syndrome.

关键词： prostate prostatitis pelvic pain syndrome urinary tract infections radioisotope diagnostic techniques

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Effect of SMAD7 gene overexpression on TGF-β1-induced profibrotic responses in fibroblasts derived from Peyronie＇s plaque

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Asian Journal of Andrology 2015年第3期17卷 487-492页

作者： min Ji Choi Kang-moon Song Jin-Mi Park Mi-Hye Kwon Ki-Dong Kwon Soo-Hwan Park Dong-Soo Ryu Ji-Kan Ryu jun-Kyu suh Department of Urology National Research Center for Sexual Medicine Inha University School of Medicine Incheon 400-711 Korea Department of Urology Changwon Samsung Medical Center Changwon 630-522 Korea Inha Research Institute for Medical Sciences Inha University School of Medicine Incheon 400-711 Korea

Transforming growth factor-β1 （TGF-β1） has been identified as one of the most important fibrogenic cytokines associated with Peyronie＇s disease （PD）. The mothers against decapentaplegic homolog 7 （SMAD7） is an inhibitory Smad protein that blocks TGF-J3 signaling pathway. The aim of this study was to examine the anti-fibrotic effect of the SMAD7 gene in primary fibroblasts derived from human PD plaques. PD fibroblasts were pretreated with the SMAD7 gene and then stimulated with TGF-β1. Treated fibroblasts were used for Western blotting, fluorescent immunocytochemistry, hydroxyproline determination, and terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick-end labeling assays. Overexpression of the SMAD7 gene inhibited TGF-β1-induced phosphorylation and nuclear translocation of SMAD2 and SMAD3, transdifferentiation of fibroblasts into myofibroblasts, and quashed TGF-β1-induced production of extracellular matrix protein and hydroxyproline. Overexpression of the SMAD7 gene decreased the expression of cyclin D1 （a positive cell cycle regulator） and induced the expression of poly （ADP-ribose） polymerase 1, which is known to terminate Smad-mediated transcription, in PD fibroblasts. These findings suggest that the blocking of the TGF-β pathway by use of SMAD7 may be a promising therapeutic strategy for the treatment of PD.

关键词： cell culture decapentaplegic homolog 7 fibrosis Peyronie's disease transforming growth factor-beta

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Inhibition of histone deacetylase 2 mitigates profibrotic TGF-β1 responses in fibroblasts derived from Peyronie＇s plaque

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Asian Journal of Andrology 2013年第5期15卷 640-645页

作者： Ji-Kan Ryu Woo-Jean Kim min-Ji Choi Jin-Mi Park Kang-moon Song Mi-Hye Kwon Nando-Dulal Das Ki-Dong Kwon Dulguun Batbold Guo-Nan Yin jun-Kyu suh National Research Center for Sexual Medicine and Department of Urology Inha University School of Medicine Incheon 400-711 Korea

Epigenetic modifications, such as histone acetylation/deacetylation, have been shown to play a role in the pathogenesis of fibrotic disease. Peyronie＇s disease （PD） is a localized fibrotic process of the tunica albuginea, which leads to penile deformity. This study was undertaken to determine the anti-fibrotic effect of small interfering RNA （siRNA）-mediated silencing of histone deacetylase 2 （HDAC2） in primary fibroblasts derived from human PD plaque. PD fibroblasts were pre-treated with HDAC2 siRNA and then stimulated with transforming growth factor-p1 （TGF-β1）. Protein was extracted from treated fibroblasts for Western blotting and the membranes were probed with antibody to phospho-Smad2/Smad2, phospho-Smad3/Smad3, smooth muscle α-actin and extracellular matrix proteins, including plasminogen activator inhibitor-β 1, fibronectin, collagen I and collagen IV. We also performed immunocytochemistry to detect the expression of extracellular matrix proteins and to examine the effect of HDAC2 siRNA on the TGF-β1-induced nuclear translocation of Smad2/3 in fibroblasts. Knockdown of HDAC2 in PD fibroblasts abrogated TGF-β1-induced extracellular matrix production by blocking TGF-β1-induced phosphorylation and nuclear translocation of Smad2 and Smad3, and by inhibiting TGF-β1-induced transdifferentiation of fibroblasts into myofibroblasts. Decoding the individual function of the HDAC isoforms by use of siRNA technology, preferably siRNA for HDAC2, may lead to the development of specific and safe epigenetic therapies for PD.

关键词： cell culture fibrosis histone deacetylase Peyronie's disease transforming growth factor-beta

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