Document Detail

Interfacial structuring in a phase-separating mixed biopolymer solution containing colloidal particles.
MedLine Citation:
PMID:  19138064     Owner:  NLM     Status:  MEDLINE    
We report confocal microscopy observations of the spatial distribution of monodisperse charge-stabilized colloidal particles (amphoteric polystyrene latex) incorporated within a spinodal-type phase-separating system of mixed biopolymers (gelatin + oxidized starch). Images from samples aged at 40 degrees C demonstrate a strong tendency for the added particles to accumulate at the liquid-liquid interface and to influence the rate of coarsening of the complex bicontinuous microstructure. Large variations in the local curvature of particle-rich interfacial regions are suggestive of a liquid-liquid boundary that is substantially viscoelastic.
Hassan Firoozmand; Brent S Murray; Eric Dickinson
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Langmuir : the ACS journal of surfaces and colloids     Volume:  25     ISSN:  0743-7463     ISO Abbreviation:  Langmuir     Publication Date:  2009 Feb 
Date Detail:
Created Date:  2009-01-27     Completed Date:  2009-03-05     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9882736     Medline TA:  Langmuir     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1300-5     Citation Subset:  IM    
Procter Department of Food Science, University of Leeds, Leeds LS2 9JT, UK.
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MeSH Terms
Biopolymers / chemistry*
Microscopy, Confocal
Particle Size
Reg. No./Substance:
0/Biopolymers; 0/Colloids; 0/Solutions

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