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Ultrafast photoprotecting sunscreens in natural plants
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Baker, Lewis A., Horbury, Michael D., Greenough, Simon E., Allais, Florent, Walsh, Patrick S., Habershon, Scott and Stavros, Vasilios G. (2015) Ultrafast photoprotecting sunscreens in natural plants. The Journal of Physical Chemistry Letters, 7 (1). pp. 56-61. doi:10.1021/acs.jpclett.5b02474
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Official URL: http://dx.doi.org/10.1021/acs.jpclett.5b02474
Abstract
We explore the ultrafast photoprotective properties of a series of sinapic acid derivatives in a range of solvents, utilizing femtosecond transient electronic absorption spectroscopy. We find that a primary relaxation mechanism displayed by the plant sunscreen sinapoyl malate and other related molecular species may be understood as a multistep process involving internal conversion of the initially photoexcited 11ππ* state along a trans–cis photoisomerization coordinate, leading to the repopulation of the original trans ground-state isomer or the formation of a stable cis isomer.
| Item Type: | Journal Article | ||||||||
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| Subjects: | Q Science > QK Botany S Agriculture > SB Plant culture |
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| Divisions: | Faculty of Science > Chemistry Faculty of Science > Centre for Scientific Computing |
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| Library of Congress Subject Headings (LCSH): | Life sciences, Plants -- Metabolism, Photosynthesis, Ultraviolet radiation, Ecology, Plant ecology, Botany | ||||||||
| Journal or Publication Title: | The Journal of Physical Chemistry Letters | ||||||||
| Publisher: | American Chemical Society | ||||||||
| ISSN: | 1948-7185 | ||||||||
| Official Date: | 10 December 2015 | ||||||||
| Dates: |
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| Volume: | 7 | ||||||||
| Number: | 1 | ||||||||
| Page Range: | pp. 56-61 | ||||||||
| DOI: | 10.1021/acs.jpclett.5b02474 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Open Access | ||||||||
| Funder: | Engineering and Physical Sciences Research Council (EPSRC) | ||||||||
| Grant number: | EP/F500378/1, EP/J007153 |
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