Source:http://linkedlifedata.com/resource/pubmed/id/12381171
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
42
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pubmed:dateCreated |
2002-10-16
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pubmed:abstractText |
Cryo-etch-HRSEM is introduced as a useful method for exploring colloidal systems. The method fast freezes an aqueous sample (to -105 degrees C in 6-7 ms), removes some or all of the surface water by sublimation (etching), and magnifies the resulting colloidal structure by up to a million. Three new structurally similar gemini surfactants served to illustrate the technique. One gemini formed a gel whose delicate fractal-like molecular web could be observed after 10-min etching. A second formed a coacervate with a more hydrated porous structure. The third displayed a "bumpy" surface consistent with spherical vesicles projecting from the vitreous ice. The information-content of cryo-etch-HRSEM is pictorial but distinctive in nature.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0002-7863
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
23
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pubmed:volume |
124
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
12408-9
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pubmed:dateRevised |
2008-1-17
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pubmed:meshHeading | |
pubmed:year |
2002
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pubmed:articleTitle |
Colloidal assemblies of branched geminis studied by cryo-etch-HRSEM. High-resolution scanning electron microscopy.
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pubmed:affiliation |
Department of Chemistry, Emory University, Atlanta, Georgia 30322, USA. menger@emory.edu
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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