维普中文期刊产品整合服务
27篇 您的检索式:作者名="Keli Han"
    题名 作者 年代 出处 被引量
1An in vivo study of the biodistribution of gold nanoparticles after intervaginal space injection in the tarsal tunnel显示文摘金 nanoparticles (AuNPs ) 的 biodistribution 是仔细与毒物学的效果有关并且因为他们的潜在的申请,担心大。与为液体运输的新奇解剖、组织学的结构的发现,然而,内在的机制包含了在在里面 AuNPs 的 vivo 运输和 biodistribution 要求进一步深入的调查。在当前的学习,在腱,容器,和神经纤维的一个焦点的点可以最佳地与另外的遥远的结缔组织连接的地方,我们在跗骨的隧道在 intervaginal 空间注射(ISI ) 以后在老鼠调查了 10-nm AuNPs 的 biodistribution。AuNPs 的静脉内的注射(IVI ) 用作控制。血和机关与诱导地联合的血浆团 spectrometry (ICPMS ) 为 Au 分发的定量分析在注射以后在 5, 15,和 30 min 并且在 1, 4, 12,和 24 h 被收集。IVI 和 ISI 产出显著地不同的结果:在在 ISI 以后的血的 AuNP 内容在 IVI 以后是比那低得多的;在肺,心,和肠是类似的;并且在皮和肌肉是更高的。这些调查结果被 AuNP 内容和相对机关 AuNP 分发比例的比率支持。我们表明的结果一快,直接并且发行量无关的 AuNP 器官运输小径,它可以改进我们生理、病理学的 biodistribution 的理解在生物系统处理。而且,这些结果提供新奇卓见进在里面 vivo 运输和 AuNPs 的 biodistribution,它可以导致新奇、有效治疗学并且管理策略。Xiaoli Shi Yuting Zhu Wenda Hua Yinglu Ji Qing Ha Xinxiao Han Yang Liu Jingwei Gao Qiang Zhang Sidi Liu Keli Ren Xiaochun Wu Hongyi Li Dong Han 2016Nano Research2016,9,7:7
2Size effect of lead-free halide double perovskite on luminescence property显示文摘Lead-free halide double perovskites have gathered wide scientific interest since they are environmentally friendly and stable.However,compared to the lead perovskites,their optoelectronic properties are compromised.Herein we report a series of bulk lead-free mixed Bi-In halide double perovskites:Cs2AgBi1-xInxCl6(0Peigeng Han Xue Zhang Xin Mao Bin Yang Songqiu Yang Zha Zhochi Feng Donghui Wei Weiqiao Deng Tonu Pullerits Keli Han 2019Science China Chemistry2019,62,10:4
3Progress in octahedral spherical hohlraum study显示文摘In this paper,we give a review of our theoretical and experimental progress in octahedral spherical hohlraum study.From our theoretical study,the octahedral spherical hohlraums with 6 Laser Entrance Holes(LEHs)of octahedral symmetry have robust high symmetry during the capsule implosion at hohlraum-to-capsule radius ratio larger than 3.7.In addition,the octahedral spherical hohlraums also have potential superiority on low backscattering without supplementary technology.We studied the laser arrangement and constraints of the octahedral spherical hohlraums,and gave a design on the laser arrangement for ignition octahedral hohlraums.As a result,the injection angle of laser beams of 50°-60°was proposed as the optimum candidate range for the octahedral spherical hohlraums.We proposed a novel octahedral spherical hohlraum with cylindrical LEHs and LEH shields,in order to increase the laser coupling efficiency and improve the capsule symmetry and to mitigate the influence of the wall blowoff on laser transport.We studied on the sensitivity of the octahedral spherical hohlraums to random errors and compared the sensitivity among the octahedral spherical hohlraums,the rugby hohlraums and the cylindrical hohlraums,and the results show that the octahedral spherical hohlraums are robust to these random errors while the cylindrical hohlraums are the most sensitive.Up till to now,we have carried out three experiments on the spherical hohlraum with 2 LEHs on Shenguang(SG)laser facilities,including demonstration of improving laser transport by using the cylindrical LEHs in the spherical hohlraums,spherical hohlraum energetics on the SGIII prototype laser facility,and comparisons of laser plasma instabilities between the spherical hohlraums and the cylindrical hohlraums on the SGIII laser facility.Ke Lan Jie Liu Zhichao Li Xufei Xie Wenyi Huo Yaohua Chen Guoli Ren Chunyang Zheng Dong Yang Sanwei Li Zhiwen Yang Liang Guo Shu Li Mingyu Zhang Xiaoying Han Chuanlei Zhai Lifei Hou Yukun Li Keli Deng Zheng Yuan Xiayu Zhan Feng Wang Guanghui Yuan Haijun Zhang Bobin Jiang Lizhen Huang Wei Zhang Kai Du Runchang Zhao Ping Li Wei Wang Jingqin Su Xuewei Deng Dongxia Hu Wei Zhou Huaiting Jia Yongkun Ding Wanguo Zheng Xiantu He 2016Matter and Radiation at Extremes2016,1,1:2
4The effect of hydrogen-bond in alcoholic solvent on the solvation ultrafast dynamics of oxazine 750 dye显示文摘The ultrafast dynamics of oxazine 750 dye was studied in methanol,ethanol,1-propanol,1-butanol solvents using the femtosecond time-resolved stimulated emission pumping fluorescence depletion (FS TR SEP FD) technique. The faster decays on the hundreds of femtosecond time scale and the slower decays on the order of picosecond were found. The intramolecular vibrational redistribution (IVR) and the solute-solvent intermolecular photoinduced electron transfer (ET) should account for the faster decay,while the slower decay is attributable to the diffusive solvent relaxation. The results show that the intermolecular hydrogen-bonding network will hinder the rearrangement of the alcoholic molecules in the solvation process and the time constants of the slower diffusive solvent relaxation decays are found to increase with the hydrogen-bonding energy in alcoholic solvents.ZHOU LiChuan SHI Ying LIU JianYong HAN KeLi 2008Chinese Science Bulletin2008,53,13:2
5Bismuth doped lead-free two-dimensional tin based halide perovskite single crystals显示文摘Heterovalent-metal doping is an efficient tool to tune the optoelectronic properties of the famous halide perovskites.Previous studies have focused on the heterovalent-doping in three-dimensional(3D) halide perovskites.However, there is a lack of such doping in two-dimensional perovskites which possess unique optoelectronic properties and improved chemical stability as compared to 3D analogues.Here, we present successful doping of Bismuth into the lattice of lead-free, two-dimensional perovskite PEA2SnBr4 single crystals.Structural characterizations demonstrate that the doped crystals possess identical crystal structure and layered morphology with the pristine one.Intriguingly, we find the PL peak and spectral shape can be tailored by tuning the concentration of Bi dopants.Femtosecond transient absorption spectroscopy is performed to understand the underlying mechanism related to tunable PL behaviors, and a clear picture of the Bismuth-doping impact is provided.Ruiling Zhang Xin Mao Pengfei Cheng Yang Yang Songqiu Yang Tuerdi Wumaier Weiqiao Deng Keli Han 2019Journal of Energy Chemistry2019,28,9:2
6Rational design of a visible-light photochromic diarylethene:a simple strategy by extending conjugation with electron donating groups显示文摘Photochromic diarylethenes have been widely used in many fields. However, their cyclization process must be induced by UV light. In this article, a simple strategy is developed by extending π-conjugation with electron donating groups. The modified dirylethene derivative can photocyclolize under 405-nm light with a good photochromic efficiency. Meanwhile, its absorption and moderate fluorescence can be switched effectively in both directions by visible lights(405 and 520 nm, respectively) in different solutions and in living cells. We believe that this simple method will become a versatile strategy for developing various dirylethylenes with visible-light photochromism.Shanliang Tang Fengling Song Meiheng Lu Keli Han Xiaojun Peng 2019Science China Chemistry2019,62,4:2
7Doped all-inorganic cesium zirconium halide perovskites with high-efficiency and tunable emission显示文摘Doping enables manipulation of both the electrical and optical properties of halide perovskites.Herein,we incorporated Te^(4+) into Cs_(2)ZrCl_(6) single crystal,simultaneously preserving the vacancy-ordered structure,to obtain an efficient yellow-emitting perovskite with a near-unity photoluminescence quantum yield(PLQY≈97.6%).Te^(4+) doping modifies the hue and emission color of pristine Cs_(2)ZrCl_(6),generates new absorption channels,and successfully extends the excitation energy from<280 nm to 360-450 nm range.Detailed spectral characterizations,including ultrafast femtosecond transient absorption measurements,reveal that the bright yellow light is derived from triplet self-trapped excitons.Moreover,further tuning doping concentration enables Te-doped Cs_(2)ZrCl_(6) single crystals to exhibit efficient warm white light emission.This work provides a new perspective for the development and design of stable lead-free perovskites with highly efficient luminescence.Pengfei Cheng Daoyuan Zheng Lu Feng Yuefeng Liu Junxue Liu Juntao Li Yang Yang Guoxiong Wang Keli Han 2022Journal of Energy Chemistry2022,31,2:2
8ESIPT-based AIE luminogens:Design strategies,applications,and mechanisms显示文摘In this review,we present a systematic and comprehensive summary of the recent development and applications of excited-state intramolecular proton transfer-based(ESIPT-based)aggregation-induced emission luminogens(AIEgens),a type of promising materials that inherit the advantages of ESIPT and AIE,such as large Stokes shift,excellent photostability,and low self-quenching.We first summarize the backbones that have been used to construct the ESIPT-based AIEgens and classify the constructed ones based on the relation between ESIPT and AIE unit.According to the sensing mechanisms and design strategies,we have reviewed the applications of ESIPT-based AIEgens in bioimaging,drug delivery systems,organic lightemitting diodes,photo-patterning,liquid crystal,and the detection of metal cations,anions,small molecules,biothiols,biological enzymes,latent fingerprinting,and so on.We have also reviewed the recent advances in the development of new theoretical methods for investigating molecular photochemistry in crystals and their applications in ESIPT-based AIEgens.We discussed the remaining challenges in this field and the issues that need to be addressed.We anticipate that this review can provide a comprehensive picture of the current condition of research in this field,and promote researchers to make more efforts to develop novel ESIPT-based AIEgens with new applications.Panwang Zhou Keli Han 2022Aggregate2022,3,5:2
9Theoretical study of the stereodynamics of the reaction Cl+ C3H8→ C3H7+HCl显示文摘Yufang Liu Huiyan Meng Keli Han 2005Chem Phys2005,309,:1
10Explicit solvent model for spectral shift of acrolein and simulation with molecular dynamics显示文摘By introducing the concept of spring energy of permanent dipole and taking the conforma-tions of solvent molecules into account,the formulas of electrostatic solvation energy in equilibrium and nonequilibrium are derived from the explicit solvent scheme,with the spatial distribution of the discrete permanent charges and induced dipoles of the sol-vent molecules involved. The energy change of sol-ute due to the variation of wave function from the case of vacuum to that in solution is estimated by treating the solvent effect as external field in the it-eration cycles of the self-consistent field. The ex-pression for spectral shift is deduced and applied to the processes of light absorption and emission in solution. According to the new formulations,the av-eraged solvent electrostatic potential/molecular dy-namics program is modified and adopted to investi-gate the equilibrium solvation energy of water mole-cule and spectral shift of acrolein.ZHU Quan LIU Jifeng FU Kexiang HAN Keli LI Xiangyuan 2006Chinese Science Bulletin2006,51,24:1
11Theoretical study of the femtosecond-resolved photoelectron spectrum of the NO molecule显示文摘Qingtian Meng Guanghui Yang ailin Sun Keli Han and Nanquan Lou 2003Phys Rev A2003,67,6:1
12Time-dependent wavepacket approach to the influence of intense fields on the population of molecular excited states显示文摘Qingtian Meng Xinguo Liu Qinggang Zhang Keli Han 2005Chem Phys2005,316,13:1
13Effect of Location of Energy Barrier on the Product Alignment of Reaction A+BC显示文摘 He Guozhong Lou Nanquan 1996J Chem Phys1996,105,19:1
14Photochemistry of arylbalides : photodissociation dynamics 显示文摘Han Keli He Guozhong 2007J Photochem Photobiol C: Pho- tochem Reviews2007,8,2:1
15Knockdown of AGR2 induces cellular senescence in prostate cancer cells显示文摘Zhongyi Hu Yuanyuan Gu Bo Han Jinsan Zhang Zunling Li Keli Tian Charles Y.F. Young Huiqing Yuan 2012Carcinogenesis2012,,:1
16Effect of location of energy barrier on the product alignment of reaction A+BC显示文摘Han Keli He Guozhong Lou Nanquan 1996J Chem Phys1996,105,19:1
17Vector correlation in the H+D2 reaction and its isotopic variants:isotope effect on stereodynamics显示文摘Chen Maodu Han Keli Lou Nanquan 2002Chem Phys Lett2002,357,56:1
18The time-de- pendent quantum wave packet approach to the electroni- cally nonadiabatic processes in chemical reactions显示文摘CHU Tianshu ZHANG Yan HAN Keli 2006International Reviews in Physical Chemistry2006,25,12:1
19Theoretical studies of product polarization and state distributions of the H+HCl reaction显示文摘Chen Maodu Han Keli Lou Nanquan 2002Chem Phys2002,283,3:1
20Product rotational polarization in the photoinitiated bimolecular reaction A+BC→AB+C on attractive,mixed and repulsive surfaces显示文摘Wang Meishan Han Keli He Guozhong 1998J Chem Phys1998,109,13:1
返回顶部 每页显示:
共2页 首页 上一页 第1页 下一页 末页 /2 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