Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
42
pubmed:dateCreated
2002-10-16
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.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0002-7863
pubmed:author
pubmed:issnType
Print
pubmed:day
23
pubmed:volume
124
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
12408-9
pubmed:dateRevised
2008-1-17
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Colloidal assemblies of branched geminis studied by cryo-etch-HRSEM. High-resolution scanning electron microscopy.
pubmed:affiliation
Department of Chemistry, Emory University, Atlanta, Georgia 30322, USA. menger@emory.edu
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.