Linked Life Data

6483570

Source:http://linkedlifedata.com/resource/pubmed/id/6483570

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1984-11-20
pubmed:abstractText
O/W creams with crystalline gel structures (Water Containing Hydrophilic Ointment DAB 8, Non-ionic Hydrophilic Ointment DAC and a stearate cream) were investigated by means of small angle X-ray diffraction, differential scanning calorimetry, thermogravimetry and freeze fracture technique in combination with Transmission Electron Microscopy (TEM). It was found that these bases are building up two different colloidal gel structures, a hydrophilic gel phase and a lipophilic gel phase, each of them forming a coherent network. The hydrophilic gel phase is characterized by an interlamellar water layer; this interlamellarly fixed water is in a dynamic equilibrium with the bulk water phase. The lipophilic gel phase immobilizes mainly the inner (dispersed) phase. So the O/W creams presented here are supposed to be four-phase systems. The ratio of interlamellarly fixed water and bulk water, which may be determined easily by means of thermogravimetry, is found to be an important quality criterion for these O/W creams. The desired properties of water release of such a cream may be chosen by shifting the ratio of interlamellarly fixed water and bulk water.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0167-6555
pubmed:author
pubmed:issnType
Print
pubmed:day
24
pubmed:volume
6
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
141-9
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
Colloidal structures of O/W creams.
pubmed:publicationType
Journal Article