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| 1 | Thiol-stabilized atomically precise, superatomic silver nanoparticles for catalysing cycloisomerization of alkynyl amines显示文摘Both the electronic and surface structures of metal nanomaterials play critical roles in determining their chemical properties. However, the non-molecular nature of conventional nanoparticles makes it extremely challenging to understand the molecular mechanism behind many of their unique electronic and surface properties. In this work, we report the synthesis, molecular and electronic structures of an atomically precise nanoparticle, [Ag206 L72]~q(L = thiolate, halide; q = charge). With a four-shell Ag7@Ag32@Ag77@Ag90 Ino-decahedral structure having a nearly perfect D_(5h) symmetry, the metal core of the nanoparticle is co-stabilized by 68 thiolate and 4 halide ligands. Both electrochemistry and plasmonic absorption reveal the metallic nature of the nanoparticles, which is explained by density functional theory calculations.Electronically, the nanoparticle can be considered as a superatom, just short of a major electron shell closing of 138 electrons(q = –4). More importantly, many of ligands capping on the nanoparticle are labile due to their low-coordination modes, leading to high surface reactivity for catalysing the synthesis of indoles from 2-ethynylaniline derivatives. The results exemplify the power of the atomic-precision nanocluster approach to catalysis in probing reaction mechanisms and in revealing the interplay of heterogeneous reactivities,electronic and surface structural dynamics, thereby providing ways for optimization. | Juanzhu Yan Jun Zhang Xumao Chen Sami Malola Bo Zhou Elli Selenius Xiaomin Zhang Peng Yuan Guocheng Deng Kunlong Liu Haifeng Su Boon K.Teo Hannu Hakkinen Lansun Zheng Nanfeng Zheng | 2018 | National Science Review2018，5，5： | 3 |
| 2 | Expression profilesof thioredoxin family proteins in human lung cancer tissue:correlation with proliferation and differen- tiation 显示文摘 | Fernandes AP Capitanio A Selenius M | 2009 | Histopathology2009，55，3： | 1 |
| 3 | Effect of marathon run on serum IGF-I and IGF binding protein-1 and 3 levels显示文摘 | Koistinen H Koistinen R Selenius L | 1996 | J Appl Physiol1996，80，： | 1 |
| 4 | Ectopic expression of macrophage scavenger receptor MARCO in synovial membranelike interface tissue in aseptic loosening of total hip replacement implants显示文摘 | Zhao D S Ma G F Selenius M | 2010 | Journal of Biomedical Materials Research Part A2010，92，2： | 1 |
| 5 | Selenium and the Selenoprotein Thioredoxin Reductase in the Prevention,Treatment and Diagnos- tics of Cancer 显示文摘 | Selenius AK Rundlof E Olm | 2010 | Antioxidants & Redox Signaling2010，7，12： | 1 |
| 6 | Expression profiles of thioredoxin family proteins in human lung cancer tissue: correlation with proliferation and differentiation显示文摘 | Fernandes A P Capitanio A Selenius M Brodin O Rundlof AK Bjornsledt M | 2009 | Histopathology2009，55，： | 1 |
| 7 | Expression profiles of thioredoxin family proteins in human lung cancer tissue: correlation with proliferation and differentiation 显示文摘 | Fernandes AP Capitanio A Selenius M | 2009 | Histopathology2009，55，3： | 1 |
| 8 | Expression profilesof thioredoxin family proteins in human lung cancer tissue: correlation with proliferation and differen- tiation 显示文摘 | Fernandes AP Capitanio A Selenius M | 2009 | Histopathology2009，55，3： | 1 |
| 9 | Selenium and the selenoprotein thioredoxin reductase in the prevention, treat- ment and diagnostics of cancer 显示文摘 | SELENIUS M RUNDLOF A K OLM E | 2010 | Antioxid Redox Signal2010，12，7： | 1 |
| 10 | Treatment of lung cancer cells with cytotoxie levels of sodium selenite: Effects on the thioredoxin system 显示文摘 | Selenius M Fernandes AP Brodin O | 2008 | Biochem Pharmacol2008，75，： | 1 |
| 11 | Ectopic expression of macrophage scavenger receptor MARCO in synovial mem- brane-like interface tissue in aseptic loosening of total hip replacement implants 显示文摘 | Zhao DS Ma GF Selenius M | 2010 | Journal of Biomedical Materials Research Part A2010，92，2： | 1 |
| 12 | Treatment of lung cancer cells with cytotoxic levels of sodium selenite: effects on the thioredoxin system 显示文摘 | Selenius M Fernandes AP Brodin O | 2008 | Biochem Pharrnacol2008，75，11： | 1 |
| 13 | Deposition behaviour of molten alkali-rich fly ashes-development of a submodel for CFD applications显示文摘 | Mueller C Selenius M Theis M | 2005 | Proceedings of the Combustion Institute2005，30，2： | 1 |
| 14 | Deposition behaviour of molten alkali-rich fly ashes-Develop- ment of a submode显示文摘 | Mueller C Selenius M Theis M | 2005 | Pro- ceedings of the Combustion Institute2005，30，2： | 1 |
| 15 | Morphological alterations and redox changes associated with hepatic warm ischemia-reperfusion injury显示文摘AIM To study the effects of warm ischemia-reperfusion(I/R) injury on hepatic morphology at the ultrastructural level and to analyze the expression of the thioredoxin(TRX)and glutaredoxin(GRX) systems.METHODS Eleven patients undergoing liver resection were subjected to portal triad clamping(PTC). Liver biopsies were collected at three time points; first prior to PTC(baseline), 20 min after PTC(post-ischemia) and 20 min after reperfusion(post-reperfusion). Electron microscopy and morphometry were used to study and quantify ultrastructural changes, respectively. Additionally, gene expression analysis of TRX and GRX isoforms was performed by quantitative PCR. For further validation of redox protein status, immunogold staining was performed for the isoforms GRX1 and TRX1.RESULTS Post-ischemia, a significant loss of the liver sinusoidal endothelial cell(LSEC) lining was observed(P = 0.0003) accompanied by a decrease of hepatocyte microvilli in the space of Disse. Hepatocellular morphology was well preserved apart from the appearance of crystalline mitochondrial inclusions in 7 out of 11 patients. Postreperfusion biopsies had similar features as post-ischemia with the exception of signs of a reactivation of the LSECs. No changes in the expression of redox-regulatory genes could be observed at mR NA level of the isoforms of the TRX family but immunoelectron microscopy indicated a redistribution of TRX1 within the cell.CONCLUSION At the ultrastructural level, the major impact of hepatic warm I/R injury after PTC was borne by the LSECs with detachment and reactivation at ischemia and reperfusion, respectively. Hepatocytes morphology were well preserved. Crystalline inclusions in mitochondria were observed in the hepatocyte after ischemia. | Rim Jawad Melroy D'souza Lisa Arodin Selenius Marita Wallenberg Lundgren Olof Danielsson Greg Nowak Mikael Bjornstedt Bengt Isaksson | 2017 | World Journal of Hepatology2017，9，34： | 1 |
| 16 | reduction of wear in total h/p replacement prostheaes by amorphous diamond coating显示文摘 | R Lappalainen M Selenius A Anttila | 2003 | J-Bio-Mater-Res (Br)2003，66，1： | 1 |
| 17 | Effect of marathon run on serum ICF-Ⅰ and ICF-binding protein 1 and 3 levels显示文摘 | Koistinen H Koistinen R Selenius L | 1996 | J Appl Physiol1996，80，： | 1 |
| 18 | Expression profiles of thioredoxin family proteins in human lung cancer tissue: correlation with proliferation and differentiation 显示文摘 | Fernandes AP Capitanio A Selenius M | 2009 | Histopathology2009，55，3： | 1 |
| 19 | Reduction of wear in total hip replacement prostheses by amorphous diamond coatings显示文摘 | LAPPALAINEN R1 SELENIUS M ANTTILA A | 2003 | J Biomed Mater Res B Appl Biomater2003，66，1： | 1 |
| 20 | Selenium and the selenopro- rein thioredoxin reductase in the prevention, treatment amt diagnostics of cancer 显示文摘 | Selenius M Rundlof AK Olm E | 2010 | Antioxid Redox Signal2010，12，7： | 1 |
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