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RISS 인기검색어
- 검색키워드
- 저자 : Huifang Shao (검색결과 3 건)
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The Soft Material Obtained from an Europium (III)-Containing Ionic Liquid
Shao, Huifang,Wang, Yige,Li, Dan Korean Chemical Society 2011 Bulletin of the Korean Chemical Society Vol.32 No.3
The addition of organic ligand (${\beta}$-diketone or heterocyclic compound) to the europium (III)-containing ionic liquid resulted in bright luminescent soft materials with the molar ratio of europium/ionic liquid (IL)/ligand being 1:3:1 that exhibit bright red light under UV lamp. The luminescent properties such as emission features and lifetime of $^5D_0$ $Eu^{3+}$ excited level are dependent on the organic ligands. The materials were characterized by FT-IR and luminescence spectroscopy. The data shows that at least parts of the ILs (carboxylic acid) are replaced with ${\beta}$-diketone ligand rather than the formation of europium complex with the molar ratio of $Eu^{3+}$:IL: ligand being 1:3:1, while no ILs could be replaced by the heterocyclic ligand such as Bpy and Phen.
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The Soft Material Obtained from an Europium (III)-Containing Ionic Liquid
Huifang Shao,Yige Wang,Dan Li 대한화학회 2011 Bulletin of the Korean Chemical Society Vol.32 No.3
The addition of organic ligand (β-diketone or heterocyclic compound) to the europium (III)-containing ionic liquid resulted in bright luminescent soft materials with the molar ratio of europium/ionic liquid (IL)/ligand being 1:3:1 that exhibit bright red light under UV lamp. The luminescent properties such as emission features and lifetime of ^(5)D_0 Eu^(3+) excited level are dependent on the organic ligands. The materials were characterized by FT-IR and luminescence spectroscopy. The data shows that at least parts of the ILs (carboxylic acid) are replaced with β-diketone ligand rather than the formation of europium complex with the molar ratio of Eu^(3+):IL: ligand being 1:3:1, while no ILs could be replaced by the heterocyclic ligand such as Bpy and Phen.
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Potential Antitumor Activity of SIM-89 in Non-Small Cell Lung Cancer Cells
Jun Pei,Baohui Han,Tianqing Chu,Minhua Shao,Jiajun Teng,Huifang Sha,Aiqing Gu,Rong Li,Jialin Qian,Weifeng Mao,Ying Li 연세대학교의과대학 2017 Yonsei medical journal Vol.58 No.3
Purpose: c-Met and its ligand, hepatocyte growth factor (HGF), play a critical role in oncogenesis and metastatic progression. The aim of this study was to identify inhibited enzymogram and to test the antitumor activity of SIM-89 (a c-Met receptor tyrosine kinaseinhibitor) in non-small cell lung cancer. Materials and Methods: Z’-LYTE kinase assay was employed to screen the kinase enzymogram, and mechanism of action (MOA) analysis was used to identify the inhibited kinases. Cell proliferation was then analyzed by CCK8 assay, and cell migration was determinedby transwell assay. The gene expression and the phosphorylation of c-Met were examined by realtime-PCR and western blotting, respectively. Finally, the secretion of HGF was detected by ELISA assay. Results: c-Met, activated protein kinase (AMPK), and tyrosine kinase A (TRKA) were inhibited by SIM-89 with the IC50 values of 297 nmol/L, 1.31 μmol/L, and 150.2 nmol/L, respectively. SIM-89 exerted adenosine triphosphate (ATP) competitive inhibition on c-Met. Moreover, the expressions of STAT1, JAK1, and c-Met in H460 cells were decreased by SIM-89 treatment, and c-Met phosphorylationwas suppressed in A549, H441, H1299, and B16F10 cells by the treatment. In addition, SIM-89 treatment significantly decreased the level of HGF, which accounted for the activation of c-Met receptor tyrosine kinase. Finally, we showed cell proliferationinhibition and cell migration suppression in H460 and H1299 cells after SIM-89 treatment. Conclusion: In conclusion, SIM-89 inhibits tumor cell proliferation, migration and HGF autocrine, suggesting it’s potential antitumoractivity.
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