Search: onr:"swepub:oai:lup.lub.lu.se:60868688-b870-42de-8b7b-254bffa34892" >
Light Responsivenes...
Light Responsiveness and Assembly of Arylazopyrazole-Based Surfactants in Neat and Mixed CTAB Micelles
-
- Tyagi, Gunjan (author)
- Imperial College London
-
- Greenfield, Jake L. (author)
- Imperial College London
-
- Jones, Beatrice E. (author)
- Diamond Light Source,University of Cambridge
-
show more...
-
- Sharratt, William N. (author)
- Imperial College London
-
- Khan, Kasim (author)
- Lund University,Lunds universitet,Molekylär cellbiologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Växtbiologi,Forskargrupper vid Lunds universitet,Molecular Cell Biology,Department of Biology,Faculty of Science,Plant Biology,Lund University Research Groups
-
- Seddon, Dale (author)
- Imperial College London
-
- Malone, Lorna A. (author)
- Diamond Light Source
-
- Cowieson, Nathan (author)
- Diamond Light Source
-
- Evans, Rachel C. (author)
- University of Cambridge
-
- Fuchter, Matthew J. (author)
- Imperial College London
-
- Cabral, João T. (author)
- Imperial College London
-
show less...
-
(creator_code:org_t)
- 2022-10-31
- 2022
- English.
-
In: Journal of the American Chemical Society. - : American Chemical Society (ACS). - 0002-7863. ; 2:12, s. 2670-2677
- Related links:
-
http://dx.doi.org/10... (free)
-
show more...
-
https://lup.lub.lu.s...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- The self-assembly of an arylazopyrazole-based photosurfactant (PS), based on cetyltrimethylammonium bromide (CTAB), and its mixed micelle formation with CTAB in aqueous solution was investigated by small angle neutron and X-ray scattering (SANS/SAXS) and UV-vis absorption spectroscopy. Upon UV light exposure, PS photoisomerizes from E-PS (trans) to Z-PS (cis), which transforms oblate ellipsoidal micelles into smaller, spherical micelles with larger shell thickness. Doping PS with CTAB resulted in mixed micelle formation at all stoichiometries and conditions investigated; employing selectively deuterated PS, a monotonic variation in scattering length density and dimensions of the micellar core and shell is observed for all contrasts. The concentration- and irradiance-dependence of the E to Z configurational transition was established in both neat and mixed micelles. A liposome dye release assay establishes the enhanced efficacy of photosurfactants at membrane disruption, with E-PS exhibiting a 4-fold and Z-PS a 10-fold increase in fluorescence signal with respect to pure CTAB. Our findings pave the way for external triggering and modulation of the wide range of CTAB-based biomedical and material applications.
Subject headings
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Keyword
- arylazopyrazole
- CTAB
- liposome
- micelle
- photosurfactant
- SANS
- SAXS
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database
- By the author/editor
-
Tyagi, Gunjan
-
Greenfield, Jake ...
-
Jones, Beatrice ...
-
Sharratt, Willia ...
-
Khan, Kasim
-
Seddon, Dale
-
show more...
-
Malone, Lorna A.
-
Cowieson, Nathan
-
Evans, Rachel C.
-
Fuchter, Matthew ...
-
Cabral, João T.
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Chemical Science ...
-
and Physical Chemist ...
- Articles in the publication
-
Journal of the A ...
-
JACS Au
- By the university
-
Lund University