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- Svensson, Frida,1980Chalmers tekniska högskola,Chalmers University of Technology (author)
Ruthenium(II) Complex Enantiomers as Cellular Probes for Diastereomeric Interactions in Confocal and Fluorescence Lifetime Imaging Microscopy
- Article/chapterEnglish2011
Publisher, publication year, extent ...
- 2011-02-07
- American Chemical Society (ACS),2011
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- LIBRIS-ID:oai:gup.ub.gu.se/138836
- https://gup.ub.gu.se/publication/138836URI
- https://doi.org/10.1021/jz101580eDOI
- https://research.chalmers.se/publication/138836URI
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- Language:English
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- Ruthenium dipyridophenazine (dppz) complexes are sensitive luminescent probes for hydrophobic environments. Here, we apply multi-frequency fluorescence lifetime imaging microscopy (FLLM) to Delta and Lambda enantiomers of lipophilic ruthenium dppz complexes in live and fixed cells, and their different lifetime staining patterns are related to conventional intensity-based microscopy. Excited-state lifetimes of the enantiomers determined from FLIM measurements correspond well with spectroscopically measured emission decay curves in pure microenvironments of DNA, phospholipid membranes, or a model protein. We show that FLIM can be applied to monitor the long-lived excited states of ruthenium complex enantiomers and, combined with confocal microscopy, give new insight into their biomolecular binding and reveal differences in the microenvironment probed by the complexes.
Subject headings and genre
- NATURVETENSKAP Kemi Fysikalisk kemi hsv//swe
- NATURAL SCIENCES Chemical Sciences Physical Chemistry hsv//eng
- dna-binding geometries
- light-switch
- dipyridophenazine complexes
- polypyridyl complex
- linear dichroism
- membrane
- picosecond
- mechanism
- solvents
- dipyridophenazine complexes
Added entries (persons, corporate bodies, meetings, titles ...)
- Abrahamsson, Maria,1975Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)abmaria (author)
- Stromberg, N.SP Sveriges Tekniska Forskningsinstitut AB (author)
- Ewing, Andrew G,1957Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry,University of Gothenburg(Swepub:cth)andrewe (author)
- Lincoln, Per,1958Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)lincoln (author)
- SP Sveriges Tekniska Forskningsinstitut ABChalmers tekniska högskola (creator_code:org_t)
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- In:Journal of Physical Chemistry Letters: American Chemical Society (ACS)2:5, s. 397-4011948-7185
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