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A photoswitchable solvatochromic dye for probing membrane ordering by RESOLFT super-resolution microscopy

Abstract:
A switchable solvatochromic fluorescent dyad can be used to map ordering of lipids in vesicle membranes at a resolution better than the diffraction limit. Combining a Nile Red fluorophore with a photochromic spironaphthoxazine quencher allows the fluorescence to be controlled using visible light, via photoswitching and FRET quenching. Synthetic lipid vesicles of varying composition were imaged with an average 2.5-fold resolution enhancement, compared to the confocal images. Ratiometric detection was used to probe the membrane polarity, and domains of different lipid ordering were distinguished within the same membrane.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1002/cphc.202300125

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Chemistry Research Laboratory
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Chemistry Research Laboratory
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Chemistry Research Laboratory
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MSD
Department:
RDM
Sub department:
Weatherall Insti. of Molecular Medicine
Research group:
MRC Human Immunology Unit
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MSD
Department:
RDM
Sub department:
Weatherall Insti. of Molecular Medicine
Research group:
MRC Human Immunology Unit
Role:
Author


Publisher:
Wiley
Journal:
ChemPhysChem More from this journal
Volume:
24
Issue:
12
Article number:
e202300125
Publication date:
2023-04-19
Acceptance date:
2023-03-22
DOI:
EISSN:
1439-7641
ISSN:
1439-4235


Language:
English
Keywords:
Pubs id:
1334085
Local pid:
pubs:1334085
Deposit date:
2023-04-11

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