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Use of a polyol liquid collection medium to obtain ultrasmall magnetic nanoparticles by laser pyrolysis.
MedLine Citation:
PMID:  23037862     Owner:  NLM     Status:  In-Data-Review    
The present work addresses the main bottleneck in the synthesis of magnetic nanoparticles by laser pyrolysis. Since the introduction of laser pyrolysis for the production of nanoparticles nearly three decades ago, this method has been repeatedly presented as a highly promising alternative, on account of two main characteristics: (i) its flexibility, since nanoparticles can be formed from a wide variety of precursors in both gas and liquid phase, and (ii) its continuous nature, avoiding the intrinsic variability of batch processing. However, the results reported to date invariably show considerable aggregation of the obtained nanoparticles, which strongly limits their application in most fields. In this work, we have been able to circumvent this problem by collecting the particles in a polyol liquid medium. This method prevents the formation of aggregates and renders a uniform distribution of well dispersed ultrasmall nanoparticles (<4 nm) in a water-compatible solvent. We consider that the effectiveness of this novel collection method for the production of well-dispersed magnetic nanoparticles will be of high interest to a wide range of scientists working in the nanoparticle synthesis field and may enable new applications wherever there is a strict requirement for non-agglomerated nanoparticles.
G Martínez; A Malumbres; R Mallada; J L Hueso; S Irusta; O Bomatí-Miguel; J Santamaría
Publication Detail:
Type:  Journal Article     Date:  2012-10-04
Journal Detail:
Title:  Nanotechnology     Volume:  23     ISSN:  1361-6528     ISO Abbreviation:  Nanotechnology     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-05     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101241272     Medline TA:  Nanotechnology     Country:  England    
Other Details:
Languages:  eng     Pagination:  425605     Citation Subset:  IM    
Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 50018-Zaragoza, Spain. Department of Chemical Engineering, Nanoscience Institute of Aragon (INA), Universidad de Zaragoza, 50018-Zaragoza, Spain.
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