Document Detail


Manganese-Induced Triplet Blinking and Photobleaching of Single Molecule Cyanine Dyes.
MedLine Citation:
PMID:  24039065     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Irradiation of solutions of the cyanine dyes Cy3, Cy3B, and Cy5 in the presence of Mn(2+) causes an increase in the yield of formation of the triplet state of the dye. This results in increased photobleaching and triplet blinking. Experiments with other divalent ions and paramagnetic molecules suggest that the enhancement in the intersystem-crossing rate is related to the paramagnetic nature of the Mn(2+) cation. The results are consistent with a model in which the formation of a weak collisional complex between the dye and the ion results in mixing of the singlet and triplet states of the dye. These findings are particularly significant in single-molecule spectroscopy and super-resolution imaging methods, in which photobleaching and blinking play an important role.
Authors:
Monika A Ciuba; Marcia Levitus
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-9-3
Journal Detail:
Title:  Chemphyschem : a European journal of chemical physics and physical chemistry     Volume:  -     ISSN:  1439-7641     ISO Abbreviation:  Chemphyschem     Publication Date:  2013 Sep 
Date Detail:
Created Date:  2013-9-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100954211     Medline TA:  Chemphyschem     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Affiliation:
Department of Chemistry and Biochemistry and The Biodesign Institute, Arizona State University, PO BOX 875601, Tempe AZ, 85287-5601 (USA), Fax: (+1) 480-727-2378.
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