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Ultrafast photoprotective properties of the sunscreening agent octocrylene
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Baker, Lewis A., Horbury, Michael D. and Stavros, Vasilios G. (2016) Ultrafast photoprotective properties of the sunscreening agent octocrylene. Optics Express, 24 (10). pp. 10700-10709. doi:10.1364/OE.24.010700 ISSN 1094-4087.
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Official URL: https://doi.org/10.1364/OE.24.010700
Abstract
Today octocrylene is one of the most common molecules included in commercially available sunscreens. It provides broadband photoprotection for the skin from incident UV-A and UV-B radiation of the solar spectrum. In order to understand how octocrylene fulfils its role as a sunscreening agent, femtosecond pump-probe transient electronic UV-visible absorption spectroscopy is utilised to investigate the ultrafast nonradiative relaxation mechanism of octocrylene in cyclohexane or methanol after UV-B photoexcitation. The data presented clearly shows that UV-B photoexcited octocrylene exhibits ultrafast-nonradiative relaxation mechanisms to repopulate its initial ground state within a few picoseconds, which, at the very least, photophysically justifies its wide spread inclusion in commercial sunscreens.
Item Type: | Journal Article | ||||||||
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Subjects: | Q Science > Q Science (General) Q Science > QD Chemistry |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry Faculty of Science, Engineering and Medicine > Research Centres > Molecular Organisation and Assembly in Cells (MOAC) |
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Journal or Publication Title: | Optics Express | ||||||||
Publisher: | Optical Society of America | ||||||||
ISSN: | 1094-4087 | ||||||||
Official Date: | 6 May 2016 | ||||||||
Dates: |
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Volume: | 24 | ||||||||
Number: | 10 | ||||||||
Page Range: | pp. 10700-10709 | ||||||||
DOI: | 10.1364/OE.24.010700 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Copyright Holders: | Optical Society of America | ||||||||
Date of first compliant deposit: | 26 October 2016 | ||||||||
Funder: | Engineering and Physical Sciences Research Council (EPSRC), Royal Society (Great Britain) | ||||||||
Grant number: | EP/F500378/1; EP/J007153 |
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