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| 1 | 3D-QSAR study on atmospheric half-lives of POPs using CoMFA and CoMSIA显示文摘3D-QSAR studies of persistent organic pollutants(POPs)screening for atmosphere persistence were performed by comparative molecular field analysis(CoMFA)and comparative molecular similarity index analysis(CoMSIA)methods.The mean and maximum half-life estimations for degradation in air of 49 UNEP POPs and possible POPs were modeled.Both groups’data have been modeled to obtain an average estimate and a predictive value for ranking and screening purposes.CoMFA and CoMSIA models have given cross-validation regression coeffcient(q2)values of more than 0.69 and correlation coeffcient(r2)value of more than 0.84,which validated for their prediction,could be applied to predict unavailable data. | Yuyin LV Chunsheng YIN Hongyan LIU Zhongsheng YI Yang WANG | 2008 | Journal of Environmental Sciences2008,20,12: | 7 |
| 2 | Defect-density control of platinum-based nanoframes with high-index facets for enhanced electrochemical properties显示文摘Structure-engineered platinum-based nanoframes(NFs)at the atomic level can effectively improve the catalytic performance for fuel cells and other heterogeneous catalytic fields.We report herein,a microwave-assisted wet-chemical method for the preparation of platinum-copper-cobalt NFs with tunable defect density and architecture,which exhibit enhanced activity and durability towards the electro-oxidation reactions of methanol(MOR)and formic acid(FAOR).By altering the reduction/capping agents and thus the nucleation/growth kinetics,trimetallic platinum-copper-cobalt hexapod NFs with different density high-index facets are achieved.Especially,the rough hexapod nanoframes(rh-NFs)exhibit excellent specific activities towards MOR and FAOR,7.25 and 5.20 times higher than those of benchmark Pt/C,respectively,along with prolonged durability.The excellent activities of the rh-NFs are assigned to a synergistic effect,including high density of defects and high-index facets,suitable d-band center,and open-framework structure.This synergistic working mechanism opens up a new way for enhancing their electrocatalytic performances by increasing defect density and high-index facets in open-framework platinum-based NFs. | Shaohan Yang Shuna Li Lianghao Song Yipin Lv Zhongyao Duan Chunsheng Li Raphael Francesco Praeg Daowei Gao Guozhu Chen | 2019 | Nano Research2019,12,11: | 3 |
| 3 | Effect of Sodium Chloride and Cadmium on the Growth, Oxidative Stress and Antioxidant Enzyme Activities of Zygosaccharomyces rouxii显示文摘Zygosaccharomyces rouxii is a salt-tolerant yeast species capable of removing cadmium(Cd) pollutant from aqueous solution. Presently, the physiological characteristics of Z. rouxii under the stress of sodium chloride(NaCl) and Cd are poorly understood. This study investigated the effects of NaCl and Cd on the growth, oxidative stress and antioxidant enzyme activities of Z. rouxii after stress treatment for 24 h. Results showed that NaCl or Cd alone negatively affected the growth of Z. rouxii, but the growth-inhibiting effect of Cd on Z. rouxii was reduced in the presence of NaCl. Flow cytometry assay showed that under Cd stress, NaCl significantly reduced the production of reactive oxygen species(ROS) and cell death of Z. rouxii compared with those in the absence of NaCl. The activities of superoxide dismutase(SOD), catalase(CAT), and peroxidase(POD) of Z. rouxii were significantly enhanced by 2%–6% NaCl, which likely contributed to the high salt tolerance of Z. rouxii. The POD activity was inhibited by 20 mg L-1Cd while the SOD and CAT activities were enhanced by 8 mg L-1 Cd and inhibited by 20 mg L-1 or 50 mg L-1 Cd. The inhibitory effect of high-level Cd on the antioxidant enzyme activities of Z. rouxii was counteracted by the combined use of NaCl, especially at 6%. This probably accounted for the decrease in Cd-induced ROS production and cell death of Z. rouxii after incubation with NaCl and Cd. Our work provided physiological clues as to the use of Z. rouxii as a biosorbent for Cd removal from seawater and liquid highly salty food. | LI Chunsheng XU Ying JIANG Wei LV Xin DONG Xiaoyan | 2014 | Journal of Ocean University of China2014,13,3: | 2 |
| 4 | MicroRNA-221 and -222 Regulate Radiation Sensitivity by Targeting the PTEN Pathway显示文摘 | Chunzhi Zhang Chunsheng Kang Ping Wang Yongzhen Cao Zhonghong Lv Shizhu Yu Guangxiu Wang Anling Zhang Zhifan Jia Lei Han Chunying Yang Hiromichi Ishiyama Bin S. Teh Bo Xu Peiyu Pu | 2011 | International Journal of Radiation Oncology Biology Physics2011,,1: | 1 |
| 5 | Recent progress in immobilization of late-transition-metal complexes with diimine ligands for olefin polymerization显示文摘Late-transition-metal(LTM) catalysts are a family of very flexible ethylene polymerization catalysts because their catalytic performance can be easily adjusted by modifying the ligand structure.Their less oxyphilicity character,which may promote the production of copolymers from ethylene and polar comonomers,is another aspect that attracts much attention in both academic and industrial fields.The immobilization of LTM catalysts on spherical supports is a crucial step prior to their use in the industrial processes of gas-phase or slurry polymerizations.This paper reviews recent developments in supported LTM catalysts for olefin polymerization,and summarizes loading methods and mechanisms of the immobilization of LTM catalysts on inorganic,organic,and inorganic-organic materials,and the effects of immobilization on catalytic activity,polymerization mechanism,and polymer morphology. | WU Wei JIANG Yan WU Hao LV ChunSheng LUO MingJian NING YingNan MAO GuoLiang | 2013 | Chinese Science Bulletin2013,58,15: | 1 |
| 6 | Constrained geometry tetramethylcyclopentadienyl- phenoxytitanium dichlorides: template synthesis, structures, andcatalytic properties for ethylene polymerization 显示文摘 | Zhang Yuetao Mu Ying Lv Chunsheng | 2004 | Organometallics2004,23,: | 1 |
| 7 | Nor- bornene polymerization and ethylene/norbornene copoly- merization catalyzed by constrained geometry cyclopenta- dienyl-phenoxytitanium catalysts 显示文摘 | Jianguo Ni Chunsheng LV Yuetao Zhang | 2008 | Polymer2008,49,: | 1 |
| 8 | Multifunctional polyeugenol-based nanoparticles with antioxidant and antibacterial properties显示文摘Over the past few decades,extensive scientific has been dedicated to polymer synthesis employing renewable resources.In this study,we devised and synthesized multifunctional polyeugenol-based nanoparticles,exhibiting remarkable antioxidant and antibacterial properties.The grafting of eugenol onto the nanoparticle surface was achieved via a thiol-ene chemical reaction with a grafting rate of 3.5%.To comprehend the properties of the synthesized nanoparticles,we employed Fourier transform infrared spectroscopy,X-ray photoelectron spectroscopy and pyrolysis-gas chromatography mass spectrometry.Subsequent scanning electron microscopic and transmission electron microscopic analyses revealed the presence of a crosslinked structure within the polyeugenol-based nanoparticles,as well as a heteroge-neous microsphere structure on the surface.Due to the inherent crosslinking structure,the polyeugenol-based nanoparticles demonstrated robust the resistance to solvents,as ascertained through thermog-ravimetric analysis and solvent resistance tests.Notably,nitrogen adsorption/desorption studies confirmed the adsorption capacity of the polyeugenol-based nanoparticles,rendering them potentially suitable for drug transport applications.Moreover,the assays for assessing cytocompatibility and reactive oxygen species scavenging activities demonstrated better performance of the eugenol-based nano-particles compared to eugenol.Furthermore,the polyeugenol-based nanoparticles exhibited certain bactericidal activities against Escherichia coli,Staphylococcus aureus,and Fusobacterium nucleatum.Consequently,these observations indicated the nontoxic nature and expansive application prospects of the polyeugenol-based nanoparticles in the domains of medicine and food preservation.This work presented a pioneering concept for the development of antioxidant and antibacterial multifunctional polymer materials derived from eugenol. | Qiaoqiao Lan Xuying Zhang Jiaming Liang Wei Wang Leili Lv Jiamin He Zefeng Wang Chunsheng Qu | 2024 | Particuology2024,87,4: | 0 |