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浏览/检索结果: 共11条，第1-10条 帮助 限定条件 内容类型：会议论文     条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择提交时间升序提交时间降序发表日期升序发表日期降序题名升序题名降序作者升序作者降序 Wheat germ agglutinin nanocage stabilized drug nanocrystals cross intestinal epithelium barrier via goblet cells 会议论文  OAI收割 作者:  Xia, Dengning;  Tao, Jinsong;  He, Yuan;  Zhu, Quanlei;  Yu, Miaorong   |  收藏  |  浏览/下载：16/0  |  提交时间：2019/01/08 nanocrystals  oral absorption  nanocage  WGA  intestinal epithelium   Effect of Reaction Temperature on the Shape of FePt Nanoparticles 会议论文  OAI收割 MAY 04-08, 2014 作者:  Du, J.;  Du, J;  Yan, A. R.;  Guo, Z. H.;  Li, W.   |  收藏  |  浏览/下载：17/0  |  提交时间：2018/01/12 Fept Nanocrystals  Growth Mechanism  Magnetic Properties  Shape-control   Effect of H-2 on the Formation Mechanism and Magnetic Properties of FePt Nanocrystals 会议论文  OAI收割 JAN 14-18, 2013 作者:  Bian, B. R.;  Xia, W. X.;  Du, J.;  Zhang, J.;  Liu, J. P.   |  收藏  |  浏览/下载：11/0  |  提交时间：2018/01/12 Fept Nanocrystals  Growth Mechanism  Magnetic Properties  Shape-control   Surfactant-free Hydrothermal Synthesis and Sensitivity Characterization of Pd-doped SnO2 Nano Crystals on Multiwalled Carbon Nanotubes 会议论文  OAI收割 DEC 05-08, 2011 作者:  Tan, Ruiqin;  Guo, Yanqun;  Shen, Wenfeng;  Jiang, Kemin;  Xu, Tiefeng   |  收藏  |  浏览/下载：5/0  |  提交时间：2021/12/02 GAS  COMPOSITE  SENSOR  NANOCRYSTALS  PALLADIUM  GROWTH  ANODE   Synthesis and luminescence properties of Eu3+-doped silicate nanomaterial (EI CONFERENCE) 会议论文  OAI收割 17th International Conference on Dynamical Processes in Excited States of Solids, DPC'10, June 20, 2010 - June 25, 2010, Argonne, IL, United states 作者:  Zhang J.;  Zhang J.;  Zhang J. 收藏  |  浏览/下载：23/0  |  提交时间：2013/03/25 In this paper  we introduce a sol-gel process for preparing Y 2Si2O7: Eu3+ nanocrystals. The rare earth compounds were dispersed in the SiO2 colloids and the monodisperse nano-scale composite materials were prepared. The reactant mass fraction and heat treatment temperatures could affect the structures and emission spectrum properties of as-synthesized samples. The samples emit the strong red light upon excitation under the ultraviolet. The main peaks originate from 5D0-7F2 electric dipole transition of Eu3+. With regard to the samples treated at different temperatures  the emission spectra obtained under 266 nm excitation show different shapes of spectra lines and relative intensities  indicating that the Eu3+ ions have been located in different local environments. 2011 Published by Elsevier B.V.   Two-dimensional graphene bridges enhanced photoinduced charge transport in dye-sensitized solar cells 会议论文  OAI收割 作者:  Yang, Nailiang;  Zhai, Jin;  Wang, Dan;  Chen, Yongsheng;  Jiang, Lei   |  收藏  |  浏览/下载：0/0  |  提交时间：2023/06/16 Light scattering - Electrodes - Nanostructured materials - Titanium dioxide - Graphene - Open circuit voltage - Nanocrystals - Electron transport properties   Preparation of Fe3O4-chitosan nanoparticles used for hyperthermia 会议论文  OAI收割 CHEMECA 2009 Conference, Perth, AUSTRALIA, SEP 27-30, 2009 作者:  Qu, J. M.;  Liu, G.;  Wang, Y. M.;  Hong, R. Y. 收藏  |  浏览/下载：16/0  |  提交时间：2014/08/28 Fe3O4  Chitosan  Nanoparticle  Hyperthermia  IRON-OXIDE NANOPARTICLES  MONODISPERSE MAGNETITE NANOPARTICLES  SUPERPARAMAGNETIC NANOPARTICLES  COMPOSITE NANOPARTICLES  POLYMERIC  MICELLES  CANCER-CELLS  IN-VITRO  CHITOSAN  NANOCOMPOSITES  NANOCRYSTALS   Optical characterization of bare CdSe and CdSe/CdS core/shell nanocrystals (EI CONFERENCE) 会议论文  OAI收割 ICO20: Biomedical Optics, August 21, 2005 - August 26, 2005, Changchun, China 作者:  Liu L.;  Yu B.;  Liu L. 收藏  |  浏览/下载：7/0  |  提交时间：2013/03/25 Thiol-capped CdSe/CdS core/shell nanocrystals (NCs) which show high luminescence quantum yield are synthesized in an aqueous solution. UV-Vis absorption spectroscopy and photoluminescence (PL) spectroscopy are employed to analyze optical characters and stabilities of NCs. Furthermore  PL properties are studied in a temperature range between 77K and 300K. The PL peak position of bare CdSe NCs shifts toward shorter wavelengths and the band becomes sharper with decreasing temperature. On the same condition  the PL peak position of CdSe/CdS core/shell NCs keeps unconverted nearly with the variation of temperature. Photostability of bare CdSe NCs and CdSe/CdS core/shell NCs are compared under the 325nm laser irradiation. It takes 78 seconds that the PL intensity declines to the half for CdSe NCs  but 442 seconds for CdSe/CdS core/shell NCs. The fluorescence decay lifetime increases about six times after overcoating. The results indicate that the CdS shell can improve the low temperature PL stability and photostability of CdSe NCs effectively.   Upconversion luminescence properties of Y2O3:Yb 3+, Er3+ nanostructures (EI CONFERENCE) 会议论文  OAI收割 作者:  Cui Y.;  Wang Y.;  Wang Y.;  Wang Y.;  Wang Y. 收藏  |  浏览/下载：15/0  |  提交时间：2013/03/25 Cubic Y2O3 nanostructures doped with Yb3+ and Er3+ ions were synthesized by a facile hydrothermal method. Three distinct shapes such as nanotubes  nanospheres and nanoflakes formed in the products by adjusting the pH value of reacting solution. Powder X-ray diffraction analyses indicate that all the three nanostructures are pure cubic phase  while electron microscopy measurements confirm the formation of different morphologies. These nanostructures exhibit strong visible upconversion luminescence under the excitation of a 978-nm diode laser. In Yb3+- and Er3+- codoped Y2O3 nanocrystals  the relative intensity of green emission became stronger as the size and morphology of sample changed from tubes to flakes. 2006 Elsevier B.V. All rights reserved.   Synthesis and luminescence of CdS/ZnS core/shell nanocrystals 会议论文  OAI收割 2nd asian symposium on organized molecular films for electronics and photomics (asomf 2), beijing, peoples r china, nov 01-03, 1998 作者:  Liu SM 收藏  |  浏览/下载：9/0  |  提交时间：2010/11/15 core/shell nanocrystals  photoluminescence  CdS  ZnS