The Library
Data for Insights into the photoprotection mechanism of the UV filter homosalate
Tools
Turner, Matthew A. P., Holt, Emily L. and Krokidi, Konstantina (2020) Data for Insights into the photoprotection mechanism of the UV filter homosalate. [Dataset]
Research output not available from this repository.
Request-a-Copy directly from author or use local Library Get it For Me service.
Official URL: http://doi.org/10.5281/zenodo.3698070
Abstract
Homosalate (HMS) is a salicylate molecule that is commonly included within commercial sunscreen formulations to provide protection from the adverse effects of ultraviolet (UV) radiation exposure. In the present work, the mechanisms by which HMS provides UV photoprotection are unravelled, using a multi-pronged approach involving a combination of time-resolved ultrafast laser spectroscopy in the gas-phase and in solution, laser-induced fluorescence, steady-state absorption spectroscopy, and computational methods. The unique combination of these techniques allow us to show that the enol tautomer of HMS undergoes ultrafast excited state intramolecular proton transfer (ESIPT) upon photoexcitation in the UVB (290–320 nm) region; once in the keto tautomer, the excess energy is predominantly dissipated non-radiatively. Sharp transitions are observed in the LIF spectrum at close-to-origin excitation energies, which points towards the potential presence of a second conformer that does not undergo ESIPT. These studies demonstrate that, overall, HMS exhibits mostly favourable photophysical characteristics of a UV filter for inclusion in sunscreen formulations.
Item Type: | Dataset | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Subjects: | Q Science > QD Chemistry | ||||||||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||||||||||||||||
Type of Data: | Experimental data | ||||||||||||||||||
Library of Congress Subject Headings (LCSH): | Salicylates, Sunscreens (Cosmetics), Ultraviolet radiation | ||||||||||||||||||
Publisher: | University of Warwick, Department of Chemistry | ||||||||||||||||||
Official Date: | 5 March 2020 | ||||||||||||||||||
Dates: |
|
||||||||||||||||||
Status: | Not Peer Reviewed | ||||||||||||||||||
Publication Status: | Published | ||||||||||||||||||
Media of Output (format): | .nw .nw.out .xyz | ||||||||||||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||||||||||||
Copyright Holders: | University of Warwick | ||||||||||||||||||
Description: | Data record consists of a zip file, organised into subfolders according to data, accompanied by a corresponding README file. |
||||||||||||||||||
RIOXX Funder/Project Grant: |
|
||||||||||||||||||
Related URLs: | |||||||||||||||||||
Contributors: |
|
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |