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wuwt(½ð±Ò+2):·Ç³£¸ÐлÄúµÄ°ï棡 1-18 04:37
wuwt(½ð±Ò+2):·Ç³£¸ÐлÄúµÄ°ï棡 1-18 04:37
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Äã¿´¿´ÕâÁ½Æªpapers,Ï£ÍûÄÜÓеãÓô¦¡£ÁíÍâËïÀÏʦ×éÀïÒ»Ö±×ö´ÅÐÔÄÉÃײÄÁÏ£¬Äã¿ÉÒÔÔÙËÑË÷Ò»ÏÂËûÃǵÄpaper¡£ 1) He, Y.P.; Wang, S.Q.; Li, C.R.; Miao, Y.M.; Wu, Z.Y.; Zou, B.S.; Synthesis and characterization of functionalized silica-coated Fe3O4 superparamagnetic nanocrystals for biological applications, Journal of Physics D: Applied Physics, Volume 38, Number 9, 7 May 2005 , pp. 1342-1350(9)[ ±»ÒýÓôÎÊý£º11] Abstract: Superparamagnetic Fe3O4 nanocrystals were prepared by a chemical coprecipitation method with a thin thickness-adjustable silica layer coated on the surface by hydrolysis of tetraethyl orthosilicate. The silica-coated Fe3O4 nanocrystals were well dispersed and consisted of a 6¨C7 nm diameter magnetic core and a silica shell about 2 nm thick, according to transmission electron microscopy observations. Fourier transform infrared spectra revealed that amino (¨CNH2) groups were successfully covalently bonded to the silica-coated Fe3O4 and then carboxyl (¨CCOOH) groups were functionalized to the surface through the reaction of ¨CNH2 and glutaric anhydride. ............... 2)J. Xie, C. Xu, N. Kohler, Y. Hou, S. Sun, Controlled PEGylation of Monodisperse Fe3O4 Nanoparticles for Reduced Non-Specific Uptake by Macrophage Cells,Advanced Materials,Volume 19 Issue 20, Pages 3163 - 3166(Brown University,ËïÊØºâÀÏʦµÄpaper£© |

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