Exploring the Photochemistry of an Ethyl Sinapate Dimer: An Attempt Toward a Better Ultraviolet Filter
| Autor: | Jack S. Peters, Matthieu M. Mention, Florent Allais, Amandine L. Flourat, Matthew A. P. Turner, Michael D. Horbury, Vasilios G. Stavros, Nicholas D. M. Hine |
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| Přispěvatelé: | University of Leeds, Department of Chemistry [University of Warwick], University of Warwick [Coventry], University of Oxford [Oxford], Agro-Biotechnologies Industrielles (ABI), AgroParisTech, Centre Européen de Biotechnologies et Bioéconomie (CEBB), University of Oxford, ANR-17-CE07-0046,SINAPUV,(Bio)synthèse et étude des propriétés physico-chimiques et biologiques d'analogues du malate de sinapoyl: de nouvelles molécules anti-UV non-toxiques et biosourcées pour l'industrie cosmétique(2017), European Project: 828753,BoostCrop |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
spectroscopy
Materials science UV filter 02 engineering and technology 010402 general chemistry Photochemistry medicine.disease_cause 01 natural sciences lcsh:Chemistry medicine Irradiation Spectroscopy Absorption (electromagnetic radiation) femtosecond Original Research photochemistry sinapates General Chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry Chemistry photoprotection lcsh:QD1-999 Picosecond Excited state Femtosecond Astrophysics::Earth and Planetary Astrophysics 0210 nano-technology Ultraviolet |
| Zdroj: | Frontiers in Chemistry Frontiers in Chemistry, Frontiers Media, 2020, 8, pp.633. ⟨10.3389/fchem.2020.00633⟩ Frontiers in Chemistry, Vol 8 (2020) Frontiers in Chemistry, 2020, 8, pp.633. ⟨10.3389/fchem.2020.00633⟩ |
| ISSN: | 2296-2646 |
| DOI: | 10.3389/fchem.2020.00633⟩ |
| Popis: | International audience; The photochemistry and photostability of a potential ultraviolet (UV) radiation filter, dehydrodiethylsinapate, with a broad absorption in the UVA region, is explored utilizing a combination of femtosecond time-resolved spectroscopy and steady-state irradiation studies. The time-resolved measurements show that this UV filter candidate undergoes excited state relaxation after UV absorption on a timescale of ∼10 picoseconds, suggesting efficient relaxation. However, steady-state irradiation measurements show degradation under prolonged UV exposure. From a photochemical standpoint, this highlights the importance of considering both the ultrafast and "ultraslow" timescales when designing new potential UV filters. |
| Databáze: | OpenAIRE |
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