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| 1 | Ho/Ni作为催化剂合成单壁碳纳米管显示文摘利用直流电弧等离子体方法,以Ho/Ni作为催化剂合成了单壁碳纳米管,借助扫描电子显微镜、拉曼光谱和热重分析方法对所合成的单壁碳纳米管的形貌、结构以及含量进行了表征。电镜观察以及热重分析表明,收集到的大量网状物中单壁碳纳米管含量较高;不同激发波长拉曼测量表明碳纳米管直径分布比较集中,在1.35nm^1.69nm范围,且直径为1.5nm的碳纳米管占多数;与Ce/Ni等作为催化剂合成的单壁碳纳米管的直径分布不同。研究结果表明,Ho/Ni对于合成单壁碳纳米管具有很好的催化效果且影响管径分布,元素Ho对单壁碳纳米管的形成起到了重要的作用。 | 姚明光 刘冰冰 邹永刚 李冬妹 艾晓雷 王霖 于世丹 邹广田 B Sundqvist | 2006 | 新型炭材料2006，21，1： | 8 |
| 2 | Nitrite,a novel method to decrease ischemia/reperfusion injury in the rat liver显示文摘AIM:To investigate whether nitrite administered prior to ischemia/reperfusion(I/R)reduces liver injury.METHODS:Thirty-six male Sprague-Dawley rats were randomized to 3 groups,including sham operated(n=8),45-min segmental ischemia of the left liver lobe(IR,n=14)and ischemia/reperfusion(I/R)preceded by the administration of 480 nmol of nitrite(n=14).Serum transaminases were measured after 4 h of reperfusion.Liver microdialysate(MD)was sampled in 30-min intervals and analyzed for glucose,lactate,pyruvate and glycerol as well as the total nitrite and nitrate(NOx).The NOx was measured in serum.RESULTS:Aspartate aminotransferase(AST)at the end of reperfusion was higher in the IR group than in the nitrite group(40±6.8μkat/L vs 22±2.6μkat/L,P=0.022).Similarly,alanine aminotransferase(ALT)was also higher in the I/R group than in the nitrite group(34±6μkat vs 14±1.5μkat,P=0.0045).The NOx in MD was significantly higher in the nitrite group than in the I/R group(10.1±2.9μmol/L vs 3.2±0.9μmol/L,P=0.031)after the administration of nitrite.During ischemia,the levels decreased in both groups and then increased again during reperfusion.At the end of reperfusion,there was a tendency towards a higher NOx in the I/R group than in the nitrite group(11.6±0.7μmol/L vs 9.2±1.1μmol/L,P=0.067).Lactate in MD was significantly higher in the IR group than in the nitrite group(3.37±0.18 mmol/L vs 2.8±0.12 mmol/L,P=0.01)during ischemia and the first 30 min of reperfusion.During the same period,glycerol was also higher in the IRI group than in the nitrite group(464±38μmol/L vs 367±31μmol/L,P=0.049).With respect to histology,there were more signs of tissue damage in the I/R group than in the nitrite group,and29%of the animals in the I/R group exhibited necrosis compared with none in the nitrite group.Inducible nitric oxide synthase transcription increased between early ischemia(t=15)and the end of reperfusion in both groups.CONCLUSION:Nitrite administered before liver ischemia in the rat liver reduces anaerobic metabolism and cell necrosis,which could be important in the clinical setting. | Bergthor Bjrnsson Linda Bojmar Hans Olsson Tommy Sundqvist Per Sandstrm | 2015 | World Journal of Gastroenterology2015，21，6： | 8 |
| 3 | 单壁碳纳米管在不同材质基片银膜上的表面增强拉曼光谱显示文摘在玻璃、白宝石和石英基片上 ,利用化学沉积法和溶胶法制备了纳米结构活性银膜 ,系统地研究了两种不同方法制备的单壁碳纳米管 (SWNT)的表面增强拉曼光谱 (SERS)的 G带和 D带 .同一样品的 G带 ,在不同基片上的峰移量不同 ,在白宝石基片上移动更大 ,峰强更高 ,可以更敏感地反映 SERS效应 .D带的峰形随基片不同而改变 .金属性管的含量较高的样品 ,其 D带光谱的峰移较半导体性管含量较高的样品更显著 ,表明金属性碳纳米管与 SERS活性银膜的界面相互作用更强 . | 于淼 刘冰冰 李冬妹 李明辉 姚明光 王霖 王卉 邹广田 王旭 赵冰 Sundqvist B. | 2003 | 高等学校化学学报2003，24，7： | 6 |
| 4 | Conventional, but not remote ischemic preconditioning, reduces iNOS transcription in liver ischemia/reperfusion显示文摘AIM:To study the effects of preconditioning on inducible nitric oxide synthase(iNOS)and interleukin 1(IL-1)receptor transcription in rat liver ischemia/reperfusion injury(IRI).METHODS:Seventy-two male rats were randomized into 3 groups:the one-hour segmental ischemia(IRI,n=24)group,the ischemic preconditioning(IPC,n=24)group or the remote ischemic preconditioning(RIPC,n=24)group.The IPC and R-IPC were performed as 10 min of ischemia and 10 min of reperfusion.The iNOS and the IL-1 receptor mRNA in the liver tissue was analyzed with real time PCR.The total Nitrite and Nitrate(NOx)in continuously sampled microdialysate(MD)from the liver was analyzed.In addition,the NOx levels in the serum were analyzed.RESULTS:After 4 h of reperfusion,the iNOS mRNA was significantly higher in the R-IPC(ΔCt:3.44±0.57)group than in the IPC(ΔCt:5.86±0.82)group(P=0.025).The IL-1 receptor transcription activity was reduced in the IPC group(ΔCt:1.88±0.53 to 4.81±0.21),but not in the R-IPC group,during reperfusion(P=0.027).In the MD,a significant drop in the NOx levels was noted in the R-IPC group(12.3±2.2 to 4.7±1.2μmol/L)at the end of ischemia compared with the levels in early ischemia(P=0.008).A similar trend was observed in the IPC group(11.8±2.1 to 6.4±1.5μmol/L),although this difference was not statistically significant.The levels of NOx rose quickly during reperfusion in both groups.CONCLUSION:IPC,but not R-IPC,reduces iNOS and IL-1 receptor transcription during early reperfusion,indicating a lower inflammatory reaction.NOx is consumed in the ischemic liver lobe. | Bergthor Bjornsson Anders Winbladh Linda Bojmar Tommy Sundqvist Per Gullstrand Per Sandstrom | 2014 | World Journal of Gastroenterology2014，20，28： | 5 |
| 5 | High-temperature superconductivity in sulfur hydride evidenced by alternating-current magnetic susceptibility显示文摘The search for high-temperature superconductivity is one of the research frontiers in physics. In the sulfur hydride system, an extremely high T_c(~200 K) has been recently developed at pressure. However, the Meissner effect measurement above megabar pressures is still a great challenge. Here, we report the superconductivity identification of sulfur hydride at pressure, employing an in situ alternating-current magnetic susceptibility technique. We determine the superconducting phase diagram, finding that superconductivity suddenly appears at 117 GPa and Tcreaches 183 K at 149 GPa before decreasing monotonically with increasing pressure. By means of theoretical calculations, we elucidate the variation of T_c in the low-pressure region in terms of the changing stoichiometry of sulfur hydride and the further decrease in Tcowing to a drop in the electron–phonon interaction parameter λ. This work provides a new insight into clarifying superconducting phenomena and anchoring the superconducting phase diagram in the hydrides. | Xiaoli Huang Xin Wang Defang Duan Bertil Sundqvist Xin Li Yanping Huang Hongyu Yu Fangfei Li Qiang Zhou Bingbing Liu Tian Cui | 2019 | National Science Review2019，6，4： | 2 |
| 6 | Metastatic disease in the liver from colorectal cancer: An appraisal of liver surgery显示文摘 | Stig Bengmark M.D. Ph.D. Larsolof Hafstr?m M.D. Ph.D. Bengt Jeppsson M.D. Per-Ebbe J?nsson M.D. Ph.D. Stefan Rydén M.D. Kaj Sundqvist M.D. Ph.D | 1982 | World Journal of Surgery1982，，1： | 2 |
| 7 | Microbiologic analysis of teeth with failed cndodontic treatment and the outcome of conservative re-treatment 显示文摘 | SUNDQVIST G FIGDOR D PERSSON S | 1998 | Oral Surg Oral Med Oral Pathol Oral Radiol Endod1998，85，1： | 1 |
| 8 | Determination of formic-acid and acetic acid concentrations formed during hydrothermal of birch wood and its relation to colour, strength and hardness显示文摘 | Bror Sundqvist Olov Karlsson Una Westermark | 2006 | Wood Sci Technol2006，40，： | 1 |
| 9 | Magnetic carbon显示文摘 | Makarova T Sundqvist B H? hne R | 2001 | Nature(London)2001，413，： | 1 |
| 10 | Cellulose degradation during hydrothermal treatment of birch wood (betula pubescens ehrh) 显示文摘 | Sundqvist B Westermark U Erikkson G | 2006 | Cellulose Chemistry and Technology2006，40，34： | 1 |
| 11 | Investigation of multiple binding sites on ribonuclease A using nano-electrospray ionization mass spectrometry显示文摘 | SUNDQVIST G BENKESTOCK K ROERAADE J | 2005 | Rapid Communications in Mass Spectrometry2005，19，8： | 1 |
| 12 | Measuring inter - organizational trust - a critical review of the empirical research in 1990 -2003 显示文摘 | Seppanen R Blomqvist K Sundqvist S | 2007 | Industrial Marketing Management2007，36，2： | 1 |
| 13 | Factors affecting the long-term results of endodontic treatment显示文摘 | Sjogren U Hagglund B Sundqvist G | 1990 | J Endod1990，16，10： | 1 |
| 14 | Spontaneous lymphocyte proliferation during trauma and infection显示文摘 | Soop M Soop A Sundqvist KG | 1988 | Scand J Immunol1988，28，6： | 1 |
| 15 | Microbiologie analysis of teeth with failed endodontic treatment and the outeome of conservative re-treatment 显示文摘 | Sundqvist G Figdor D Persson S | 1998 | Oral Surg Oral Med Oral Pathol Oral Radiol Endod1998，85，1： | 1 |
| 16 | The antibacterial action of sodium hypochlorite and DETA in 60 cases of endodontic therapy 显示文摘 | Bystrom A Sundqvist G | 1985 | Int Ecdod J1985，18，： | 1 |
| 17 | Sputtering by Fast Ions Based a Sum of Impulses 显示文摘 | Sundqvist B U R Hedin A | 1989 | Phys Rev1989，40，： | 1 |
| 18 | Analysis of oestrogen regulation of alpha-,beta-and gamma-secretase gene and protein expression in cultured human neuronal and glial cells显示文摘 | Nord L C Sundqvist J Andersson E | 2010 | Neurodegener Dis2010，7，6： | 1 |
| 19 | Associations between microbial species in dental root canal infections显示文摘 | Sundqvist G | 1992 | Oral Microbiol Immunol1992，7，5： | 1 |
| 20 | Measuring inter-organizational trust : A critical review of the empirical research in 1990-2003 显示文摘 | Seppanen R Blomqvist K Sundqvist S | 2007 | Industrial Marketing Management2007，36，2： | 1 |
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