Document Detail


Synthesis and characterization of multifunctional silica core-shell nanocomposites with magnetic and fluorescent functionalities.
MedLine Citation:
PMID:  20336173     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Multifunctional core-shell nanocomposites with a magnetic core and a silica shell doped with lanthanide chelate have been prepared by a simple method. First, citric acid-modified magnetite nanoparticles were synthesized by a chemical coprecipitation method. Then the magnetite nanoparticles were coated with silica shells doped with terbium (Tb(3+)) complex by a modified Stöber method based on hydrolyzing and condensation of tetraethyl orthosilicate (TEOS) and a silane precursor. These multifunctional nanocomposites are potentially useful in a variety of biological areas such as bio-imaging, bio-labeling and bioassays because they can be simultaneously manipulated with an external magnetic field and exhibit unique phosphorescence properties.
Authors:
Zhiya Ma; Dosi Dosev; Mikaela Nichkova; Randy K Dumas; Shirley J Gee; Bruce D Hammock; Kai Liu; Ian M Kennedy
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Publication Detail:
Type:  JOURNAL ARTICLE    
Journal Detail:
Title:  Journal of magnetism and magnetic materials     Volume:  321     ISSN:  0304-8853     ISO Abbreviation:  -     Publication Date:  2009 May 
Date Detail:
Created Date:  2010-7-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101314425     Medline TA:  J Magn Magn Mater     Country:  -    
Other Details:
Languages:  ENG     Pagination:  1368-1371     Citation Subset:  -    
Affiliation:
Department of Mechanical and Aeronautical Engineering, University of California-Davis, One Shields Avenue, Davis CA 95616, USA.
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Descriptor/Qualifier:
Grant Support
ID/Acronym/Agency:
P42 ES004699-230016//NIEHS NIH HHS

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