Linked Life Data

16592008

Source:http://linkedlifedata.com/resource/pubmed/id/16592008

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2010-6-29
pubmed:abstractText
When transfer of electronic excitation energy occurs between a donor-acceptor pair by the Förster mechanism, the decay of fluorescence of the donor follows first-order kinetics, with a rate constant that depends on the distance from donor to acceptor. In a system that contains donor-acceptor pairs of different separations, the fluorescence decay of the donors will not be exponential, but will depend on the distribution function of donor-acceptor distances, f(r). Various approaches are outlined for the extraction of information about f(r) from the decay curve of donor fluorescence. Specifically, if a plausible expression with adjustable parameters is assumed for f(r), numerical methods can be used to evaluate the parameters that yield the closest fit between the observed decay curve and that calculated from the assumed f(r). The technique of fluorescence decay may prove to be useful for determination of distribution functions of end-to-end distances of polymers to the edges of which suitable donor-acceptor chromophore pairs have been attached.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Aug
pubmed:issn
0027-8424
pubmed:author
pubmed:issnType
Print
pubmed:volume
69
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2273-7
pubmed:dateRevised
2010-9-15
pubmed:year
1972
pubmed:articleTitle
Evaluation of the distribution of distances between energy donors and acceptors by fluorescence decay.
pubmed:affiliation
The Weizmann Institute of Science, Rehovot, Israel.
pubmed:publicationType
Journal Article