Nano Science and Technology Institute
Nanotech 2010 Vol. 1
Nanotech 2010 Vol. 1
Nanotechnology 2010: Advanced Materials, CNTs, Particles, Films and Composites
 
Chapter 3: Nanoparticle Synthesis & Applications
 

From Micro to Nano Magnetic Spheres: Size-Controllable Synthesis, Multilayer Coatings, and Biomedical Applications

Authors:K.C.F. Leung, S. Xuan
Affilation:The Chinese University of Hong Kong, HK
Pages:547 - 550
Keywords:nanoparticles, microparticles, magnetic, coating, MRI
Abstract:Magnetic material has become a particular important research area and is attracting a great deal of attentions because of their potential technological applications, such as in ferrofluids, colored pigments, high-density magnetic recording media, chemical sensors, electrophotographic developers, biological assays and magnetic resonance imaging (MRI). In our group, size-controllable monodispersed ferrite nano to microspheres have been synthesized with a range of sizes from 20 nm to 300 nm. Some of these spheres have been coated efficiently with silica, carbon, gold, poly(aniline), dendrimers, etc. to yield well-defined core-shell structures. These magnetic microspheres were functionalized successfully with organic moieties such as crown ethers, acting as a tool for the preparation and magnetic separation of monofunctional gold nanoparticles. Moreover, ultrasmall magnetic nanospheres have been employed as both in vitro and in vivo MRI contrast agents.
From Micro to Nano Magnetic Spheres: Size-Controllable Synthesis, Multilayer Coatings, and Biomedical ApplicationsView PDF of paper
ISBN:978-1-4398-3401-5
Pages:976
Hardcopy:$189.95
 
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