Results 161 to 170 of about 14,703 (275)

Geometrical isomerization of hydroxycinnamic acid under UV‐light: Structural plasticity as a driver of metabolite complexity

Photochemistry and Photobiology, EarlyView.
UV irradiation drives metabolite complexity through photoisomerization of hydroxycinnamic acid‐containing compounds in plants. The olefin functional group of hydroxycinnamic acid enables structural plasticity through trans/cis isomerization. Multiple chromophores within a molecule can amplify UV‐induced transformations.
Mailane Rose Sekgobela, Lutendo Michael Mathomu, Nakisani Babra Moyo, Rudzani Nemadzhilili, Mwadham Mwombeki Kabanda, Ntakadzeni Edwin Madala   +5 more
wiley   +1 more source

Programming Host-Guest Interactions in Covalent Organic Frameworks with Arylazopyrazole Photoswitches. [PDF]

Chem Mater
Yao X, Du M, Kobayashi T, Ruiz A, Chen H, Qi L, Liu Y.   +6 more
europepmc   +1 more source

Revisiting the action spectrum of DNA damage: Chemiexcitation and the expanded biological spectrum of cyclobutane pyrimidine dimer formation

Photochemistry and Photobiology, EarlyView.
UVB and UVA generate cyclobutane pyrimidine dimers (CPDs) during irradiation (purple). After exposure ends, chemiexcitation in pigmented melanocytes continues to generate delayed CPDs (yellow), even as repair removes some pre‐existing lesions. Consequently, total CPD burden can rise while visible erythema fades.
Jyoti Srivastava, Marcus S. Cooke, Sanjay Premi   +2 more
wiley   +1 more source

NORA: non-adiabatic dynamics with force-field based representation. Application to photoisomerization in biomimetic photoswitches

International audienceWe propose NORA, a surface hopping dynamics based on the Joyce quantum derived force field to study photoisomerization in biomimetic ...
Prampolini, Giacomo, Monari, Antonio, Losantos, Raúl   +2 more
core   +1 more source

Saturating mutagenesis on the Ser118 residue responsible for the spectral tuning mechanism of the orange/green‐reversible cyanobacteriochrome AM1_1499g1

Plant Biology, EarlyView.
This graphical abstract illustrates our systematic site‐saturation mutagenesis at the Ser118 position of the AM1_1499g1 GAF domain. By replacing this single residue, we generated a diverse array of variants with distinct spectral properties, demonstrating the remarkable molecular plasticity of cyanobacteriochromes and their customizability for ...
A. Yoneda, T. Suzuki, R. Narikawa
wiley   +1 more source

Molecular solar thermal energy storage in nitrone-oxaziridine pairs with widely tunable thermal half-lives. [PDF]

Chem Sci
Chakraborty S, Usuba J, Nguyen AH, Nguyen HPQ, Han GGD.   +4 more
europepmc   +1 more source

Nanofabrication of Topological Surface Relief Structures in Azopolymers With Tightly Focused Optical Skyrmions

Nanophotonics, Volume 15, Issue 21, 12 November 2026.
We demonstrate the nanofabrication of topological surface relief structures (surface reliefs with a shape like a Möbius strip) in azopolymers using longitudinal electric fields and nano‐scale circular polarization defects (C‐point polarization defect) created by tightly focused optical skyrmions.
Takashige Omatsu, Soki Hirayama, Andra Naresh Kumar Reddy, Masahito Okida, Atsushi Taguchi   +4 more
wiley   +1 more source

The Radical Chemistry of 2,3‐Diguanidinopyridines: Coordination and Visible‐Light Photochemistry

Chemistry – A European Journal, Volume 32, Issue 41, 3 November 2026.
Substitution at the pyridine core of 2,3‐diguanidinopyridines was used to develop novel redox‐active molecules with three interconvertible redox states. They are applied as redox‐active ligands in coordination chemistry. Visible‐light irradiation of the pyridine N‐benzylated molecules leads to photoconversion to a higher‐energetic isomer.
Hanna Koepcke, Etienne Engels, Elisabeth Kaifer, Hans‐Jörg Himmel   +3 more
wiley   +1 more source

Light-gated electro(de)wetting with photoswitchable amphiphiles. [PDF]

Eur Phys J E Soft Matter
Shakhayeva B, Hardt M, Braunschweig B.
europepmc   +1 more source

Molecular‐Level Modulation of Proton Transport via Electron‐Proton Coupling in Bio‐p‐n Junctions

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 6, November 2026.
We developed a pH‐sensing device capable of operating in biological environments. A biohybrid p–n junction was constructed using bacteriorhodopsin (bR) and the photoconductive polymer poly(3‐hexylthiophene) (P3HT). Under light illumination, the photocurrent exhibits distinct transitions across various pH gradients, demonstrating the system's high ...
Chen Song, Yujia Lv, Haotian Pang, Haoqi Fan, Jiayin Huang, Weibin Zhou, Dan Luo, Aochen Wang   +7 more
wiley   +1 more source