Ultrafast Photoprotecting Sunscreens in Natural Plants

被引：97

作者：

Baker, Lewis A. ^{[1
,2
]}

Horbury, Michael D. ^{[1
]}

Greenough, Simon E. ^{[1
]}

Allais, Florent ^{[3
,4
,5
]}

Walsh, Patrick S. ^{[6
]}

Habershon, Scott ^{[1
,2
]}

Stavros, Vasilios G. ^{[1
]}

机构：

[1] Univ Warwick, Dept Chem, Coventry CV4 7AL, W Midlands, England

[2] Univ Warwick, Ctr Comp Sci, Coventry CV4 7AL, W Midlands, England

[3] AgroParisTech, Chaire AgroBiotechnol Ind ABI, F-51100 Reims, France

[4] INRA, AgroParisTech, UMR GMPA, F-78850 Thiverval Grignon, France

[5] INRA, AgroParisTech, UMR IJPB, F-78026 Versailles, France

[6] Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2016年 / 7卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

PHOTOACTIVE YELLOW PROTEIN; STATE DYNAMICS; CHROMOPHORE; RADIATION; ACID; PHOTOISOMERIZATION; ACCUMULATION; SPECTROSCOPY; OXYBENZONE; RESOLUTION;

D O I：

10.1021/acs.jpclett.5b02474

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 1(1) pi pi* 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.

引用

页码：56 / 61

页数：6

共 44 条

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