ArticleJournal of fluorescence2011
Activation energy of light induced isomerization of resveratrol.
Article in Journal of fluorescence, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed, 70 citations in OpenAlex.
- Understanding the Effect of Zein-Resveratrol Interactions on the Mechanical and Functional Properties of Zein Gels.Gels (Basel, Switzerland) · 2026Article
- Identification of a polyphenol O-methyltransferase with broad substrate flexibility in Streptomyces albidoflavus J1074.Microbial cell factories · 2024Article
- Exploring the molecular solvatochromism, stability, reactivity, and non-linear optical response of resveratrol.Journal of molecular modeling · 2024Article
- Inhibition of ANO1 byInternational journal of molecular sciences · 2023Article
- Molecular Switches-Tools for Imparting Control in Drug Delivery Systems.Frontiers in chemistry · 2022Review
- Drug Delivery Strategies for Curcumin and Other Natural Nrf2 Modulators of Oxidative Stress-Related Diseases.Pharmaceutics · 2021Review
- Cytotoxic and Proapoptotic Effects of Resveratrol in In Vitro Studies on Selected Types of Gastrointestinal Cancers.Molecules (Basel, Switzerland) · 2021Review
- Role of Resveratrol in Prevention and Control of Cardiovascular Disorders and Cardiovascular Complications Related to COVID-19 Disease: Mode of Action and Approaches Explored to Increase Its Bioavailability.Molecules (Basel, Switzerland) · 2021Review
- Molecular characterization ofSaudi journal of biological sciences · 2021Article
- Inclusion of the PhytoalexinMolecules (Basel, Switzerland) · 2020Article
- The effect of salt stress on resveratrol and piceid accumulation in twoPhysiology and molecular biology of plants : an international journal of functional plant biology · 2019Article
- Review
- Identification and functional characterization of a p-coumaroyl CoA 2'-hydroxylase involved in the biosynthesis of coumarin skeleton from Peucedanum praeruptorum Dunn.Plant molecular biology · 2017Article
- Resveratrol (3,5,4'-trihydroxystilbene) and its properties in oral diseases.Experimental and therapeutic medicine · 2017Article
- Nanoscale Delivery of Resveratrol towards Enhancement of Supplements and Nutraceuticals.Nutrients · 2016Article
- Photoswitchable anticancer activity via trans-cis isomerization of a combretastatin A-4 analog.Organic & biomolecular chemistry · 2016Article
- Article
- Pre-formulation studies of resveratrol.Drug development and industrial pharmacy · 2015Article
- Resveratrol exacerbates both autoimmune and viral models of multiple sclerosis.The American journal of pathology · 2013Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Isomerization of trans-stilbenes is known to be induced by light. The two isomers have distinct absorption, fluorescence excitation and emission spectra. Resveratrol, 3,4',5-trihydroxystilbene, is a member of the stilbene family. The interest of the scientific community in resveratrol has increased over the last years due to its biomedical properties. Whereas there is a growing confidence that trans-resveratrol is non-toxic, very little is known about the pharmacology of cis-resveratrol. Of this very reason there is considerable interest in knowing the energetics of the trans-cis conversion. Cis-resveratrol is characterized by a large fluorescence quantum yield when compared to trans-resveratrol. In the present paper we report a detailed analysis of the spectral changes induced in trans-resveratrol upon 260 nm excitation for different time periods. Spectral changes have been monitored with UV-visible absorption and steady-state fluorescence spectroscopy at pH 4 at 20, 25, 30, 35, 40, 45 and 50 °C. Continuous 260 nm excitation induces a blue shift in the absorption and fluorescence excitation spectra of resveratrol and a 14 nm blue shift in its fluorescence emission. The photoisomerization yield is reported as a function of 260 nm excitation time. 330 min continuous excitation led to ~60% isomerization yield. The kinetics of trans-cis isomerization has been monitored following the increase in fluorescence quantum yield upon continuous 260 nm excitation of trans-resveratrol. The study was carried out at the above mentioned temperatures in order to obtain the Arrhenius activation energy of photoisomerization. Activation energy and pre-exponential factor were 3.7 ± 0.3 kcal.mol(-1) and 10.6 ± 1.6 s(-1), respectively. The activation energy is comparable with previously reported values for the photoisomerization of other stilbenes.
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