Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1981-3-17
pubmed:abstractText
Structural damage by 100 kV electron irradiation in hydrated and dehydrated lecithin bilayers of different acyl chain lengths were measured by the alteration of electron diffraction patterns. At temperatures below the transition temperatures (Tc), the total diffraction intensities of both hydrated and dehydrated bilayers decreased at similar exponential rates, starting at a cumulative dose of 2 x 10(-4) C/cm2. The intensity anisotropy along diffraction rings was not noticeably altered by radiation. At temperatures less than 6 degrees from Tc, the total diffraction intensity of hydrated bilayers increased initially with radiation, while the intensity anisotropy along diffraction rings was also changed by radiation. Unsupported and hydrated bilayers at temperatures well below Tc ruptured at a cumulative dose of 10(-3) C/cm2, whereas those near or above Tc were more resistant to radiation-induced rupture. The results are discussed in terms of molecular damage, bilayer movement and annealing.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0304-3991
pubmed:author
pubmed:issnType
Print
pubmed:volume
5
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
505-12
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1980
pubmed:articleTitle
Radiation damage of phosphatidylcholine bilayers effects of temperature and hydration.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't