维普中文期刊产品整合服务
5篇 您的检索式:作者名="Zhengxiu Luo"
    题名 作者 年代 出处 被引量
1Nebulized hypertonic saline/salbutamol solution treatment in hospitalized children with mild to moderate bronchiolitis 显示文摘Zhengxiu LUO 2010Pediatrics International2010,52,2:1
2Laser-induced damage of a 1064-nm ZnS/MgF2 narrow-band interference filter显示文摘Haiyang Hu Zhengxiu Fan Fu Luo 2001Applied Optics2001,40,12:1
3Laser-induced damage of a 1 064 nm ZnS/MgF2 narrow-band interference filter显示文摘Hu Haiyang Fan Zhengxiu Luo Fu 2001Appl Opt2001,40,12:1
4Analysis of Genomic Genetic Diversity of Cucurbit Aphidborne Yellows Virus显示文摘[Objectives]This study was conducted to investigate the molecular characteristics,genetic structure and evolutionary mechanism of cucurbit aphid-borne yellows virus(CABYV),which is of great significance for clarifying the epidemic laws of the disease in the field and formulating long-term sustainable control strategies.[Methods]120 melon leaves suspected to be infected with CABYV were randomly collected from Aksu City,Xinjiang.RT-PCR was used to detect the virus.MEGA 7.0 was used to construct a phylogenetic tree.DnaSP v5.10 was used to analyze the genetic diversity among different sequences,and RDP v.4.31 software was used to analyze possible recombination events of CABYV sequence.[Results]The detection rate of CABYV was 31.67%.A new CABYV-2 was isolated,sequenced and cloned from these positive samples.The length of the genome is 5497 bp,encoding six open reading frames.Compared with 23 CABYV strains isolated from different countries in NCBI database,CABYV-2 shared the highest homology with KR231942.1 and the lowest homology with JF939812.1.The results of evolutionary tree analysis showed that the 24 isolates were divided into two branches due to different geographical factors,including CABYV-2 and KR2319421,which were clustered together and belonged to branch 1.The results of genetic diversity and neutrality tests showed that CABYV was highly variable and the population was expanding.The results of recombination analysis showed that there were two recombinants,EU636992.1 and KR231949.1,which exacerbated the variation of CABYV.[Conclusions]The CABYV isolate from Aksu City,Xinjiang had the closest relationship with the Korean isolate KR231942.1,and the farthest relationship with the isolates from European countries.There were large genetic differences between the isolates of branch 1 and branch 2,and the recombination of CABYV in different hosts aggravated the variation of CABYV.Recombination and negative selection may be important reasons for the genetic variation of CABYV.Wei CHEN Lina NIU Zhengxiu CUI Yongping LUO Juan HE Min CHAI Maimaiti YUSHANJIANG 2022Agricultural Biotechnology2022,11,4:0
5Facile one-pot synthesis of superfine palladium nanoparticles on polydopamine-functionalized carbon nanotubes as a nanocatalyst for the Heck reaction显示文摘Heterogeneous Pd nanocatalysts are efficient catalysts for the Heck reaction but require multi-step,sophisticated procedures and harsh reaction conditions.In this work,a green and facile strategy has been developed to decorate Pd nanoparticles on polydopamine(PDA)-coated multi-walled carbon nanotubes(Pd/CNTs-PDA)via a one-pot method.The obtained nanoparticles were characterized by various techniques including transmission electron microscopy,X-ray diffraction,and X-ray photoelectron spectroscopy,which proved that Pd NPs are well-dispersed on the PDA and between the surfaces of the PDA and CNTs.The resultant Pd/CNTs-PDA catalysts exhibit excellent catalytic reactivity toward the Heck reaction at low temperatures.Moreover,by DFT simulation,we found that during the PDA polymerization process,a large number of unsaturated—N=and C=O species are more active than the groups on the PDA end product to anchor Pd NPs.The results provide evidence that the catalyst synthesized by the onepot method exhibited good activity because sufficient active sites could be created to effectively promote Pd NPs dispersion during the dopamine polymerization process.Additionally,the Pd/CNTs-PDA catalyst was successfully employed in Heck cross-coupling reactions with various functionalized substrates.This method opens a window for the fabrication of high-performance nanocomposite catalysts under mild conditions using simple methods and has several potential applications.Zhengxiu Luo Ning Wang Xiaoyan Pei Tao Dai Zhigang Zhao Congmei Chen Maofei Ran Wenjing Sun 2021Journal of Materials Science & Technology2021,,23:0
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费