Document Detail

A small-angle neutron scattering study of cholic acid-based organogel systems.
MedLine Citation:
PMID:  15835654     Owner:  NLM     Status:  MEDLINE    
Small-angle neutron scattering measurements were performed on some cholic acid-based gel systems in order to gain detailed information about the network structure. The presence of thin fibers with a radius of about 10-20 A was found for various gelators. Two types of interaction between different sorts of fibers were demonstrated, depending on the molecular structure of the gelator. The first type involves the presence of microcrystalline knots with a dimension of about 100-200 A between the fibers. Upon heating, this network gradually disintegrates. The second type involves loose entanglements between flattened fibers. The occurrence of these types of interaction is related to the length of the alkyl tail attached to cholic acid.
Hendra M Willemen; Antonius T M Marcelis; Ernst J R Sudhölter; Wim G Bouwman; Bruno Demé; Pierre Terech
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Langmuir : the ACS journal of surfaces and colloids     Volume:  20     ISSN:  0743-7463     ISO Abbreviation:  Langmuir     Publication Date:  2004 Mar 
Date Detail:
Created Date:  2005-04-19     Completed Date:  2005-12-12     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9882736     Medline TA:  Langmuir     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2075-80     Citation Subset:  IM    
Laboratory of Organic Chemistry, Wageningen University, Dreijenplein 8, 6703 HB, The Netherlands.
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MeSH Terms
Cholic Acids / chemistry*
Macromolecular Substances
Molecular Structure
Neutron Diffraction
Reg. No./Substance:
0/Cholic Acids; 0/Gels; 0/Macromolecular Substances

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