Results 1 to 10 of about 6,678 (238)

Reshaping Antioxidant Activity via Photoisomerization: A Comparative Theoretical Study of Pterostilbene and Resveratrol [PDF]

Antioxidants
This study elucidates the regulatory mechanisms of methoxy substitution and photoexcitation on the antioxidant properties of pterostilbene (PTE) versus resveratrol (RES), employing a combined approach of multi-reference calculations, density functional ...
Lei Wang, Chaofan Sun
doaj   +2 more sources

Dramatic morphological changes in liposomes induced by peptide nanofibers reversibly polymerized and depolymerized by the photoisomerization of spiropyran

Frontiers in Molecular Biosciences, 2023
Cytoskeletons such as microtubules and actin filaments are natural protein assemblies, which dynamically control cellular morphology by reversible polymerization/depolymerization.
Yingbing Liang, Shigesaburo Ogawa, Hiroshi Inaba, Hiroshi Inaba, Kazunori Matsuura, Kazunori Matsuura   +5 more
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Coenzyme Q10 in the eye isomerizes by sunlight irradiation

Scientific Reports, 2022
Photoisomerization of lipids has been well studied. As for the eyes, photoisomerization from 11-cis isomer to all-trans-retinal is well-known as the first step of the visual transduction in the photoreceptors.
Md. Al Mamun, Md. Mahamodun Nabi, Tomohito Sato, Shuhei Aramaki, Yusuke Takanashi, Takumi Sakamoto, Kaito Hizume, Chikako Mori, Maiha Yasue, Masataka Ozaki, Ariful Islam, Tomoaki Kahyo, Makoto Horikawa, Yutaka Takahashi, Shigetoshi Okazaki, Kentaro Ohishi, Yu Nagashima, Keiji Seno, Yoshihiro Hotta, Mitsutoshi Setou   +19 more
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Noninvasive monitoring of bilirubin photoisomer excretion during phototherapy

Scientific Reports, 2022
Lumirubin is the most prevalently excreted hydrophilic bilirubin photoisomer in phototherapy for neonatal jaundice caused by excess hydrophobic unconjugated bilirubin (ZZ-bilirubin).
Yumiko Uchida, Yukihiro Takahashi, Yukihiro Morimoto, Peter Greimel, Asako Tosaki, Akiko Kumagai, Toshiya Nishikubo, Atsushi Miyawaki   +7 more
doaj   +1 more source

Optically Induced Ferroelectric Polarization Switching in a Molecular Ferroelectric with Reversible Photoisomerization

Advanced Science, 2021
Ferroelectrics usually exhibit temperature‐triggered structural changes, which play crucial roles in controlling their physical properties. However, although light is very striking as a non‐contact, non‐destructive, and remotely controlled external ...
Wei‐Qiang Liao, Bin‐Bin Deng, Zhong‐Xia Wang, Ting‐Ting Cheng, Yan‐Ting Hu, Shu‐Ping Cheng, Ren‐Gen Xiong   +6 more
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Controlling the LCST-Phase Transition in Azobenzene-Functionalized Poly (N-Isopropylacrlyamide) Hydrogels by Light

Gels, 2023
Poly(N-isopropylacrylamide) PNIPAAm hydrogels were modified with a new azobenzene-containing co-monomer. In this work, light responsiveness as an additional functionality, is conceptualized to induce two phase transitions in the same material, which can ...
Ruchira Colaco, Clement Appiah, Anne Staubitz   +2 more
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Role of Thr82 for the unique photochemistry of TAT rhodopsin

Biophysics and Physicobiology, 2021
Marine bacterial TAT rhodopsin possesses the pKa of the retinal Schiff base, the chromophore, at neutral pH, and photoexcitation of the visible protonated state forms the isomerized 13-cis state, but reverts to the original state within 10–5 sec.
Teppei Sugimoto, Kota Katayama, Hideki Kandori   +2 more
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Effect of Disperse Red 1 Azobenzene Dye Doping and Annealing on the Thermomechanical and Photomechanical Properties of PMMA Fibers

Applied Sciences, 2022
This work studies the effect of azobenzene dye Disperse Red 1 (DR1) doping and annealing on the thermomechanical and photomechanical properties of poly(methyl methacrylate) (PMMA) fibers.
Zoya Ghorbanishiadeh, Bojun Zhou, Morteza Sheibani Karkhaneh, Rebecca Oehler, Mark G. Kuzyk   +4 more
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Position of rhodopsin photoisomerization on the disk surface confers variability to the rising phase of the single photon response in vertebrate rod photoreceptors.

PLoS ONE, 2020
Retinal rods function as accurate photon counters to provide for vision under very dim light. To do so, rods must generate highly amplified, reproducible responses to single photons, yet outer segment architecture and randomness in the location of ...
Giovanni Caruso, Colin J Klaus, Heidi E Hamm, Vsevolod V Gurevich, Clint L Makino, Emmanuele DiBenedetto   +5 more
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A Theoretical Study of the N to O Linkage Photoisomerization Efficiency in a Series of Ruthenium Mononitrosyl Complexes

Molecules, 2017
Ruthenium nitrosyl complexes are fascinating versatile photoactive molecules that can either undergo NO linkage photoisomerization or NO photorelease.
Juan Sanz García, Francesco Talotta, Fabienne Alary, Isabelle M. Dixon, Jean-Louis Heully, Martial Boggio-Pasqua   +5 more
doaj   +1 more source