Results 111 to 120 of about 6,678 (238)

Cis‐urocanic acid formation following far‐UVC exposure and associated signaling responses in keratinocytes

Photochemistry and Photobiology, EarlyView.
Far‐UVC (200–235 nm) has emerged as a safe and effective indoor disinfection tool, but effects on skin immunomodulation remain unclear. This study demonstrates that 222 nm far‐UVC converts trans‐urocanic acid (UCA) to its biologically active cis isomer at levels comparable with solar radiation. In keratinocytes, far‐UVC alone caused modest increases in
Lizzie Thomas, Gareth Hazell, Katarzyna Baczynska, Jinkang Zhang, Paul O'Mahoney   +4 more
wiley   +1 more source

Wet Transfer of In Situ Grown Azo‐Containing Two‐Dimensional Conjugated Covalent Organic Framework Films for Photoswitchable Electronic Devices

Angewandte Chemie, Volume 138, Issue 32, 3 August 2026.
Wet transfer of an atomically flat azo‐functionalized 2D covalent organic framework film onto monolayer MoS2 enables clean van der Waals heterostructure devices with reversible photoswitching and multilevel nonvolatile memory. ABSTRACT Two‐dimensional π‐conjugated covalent organic frameworks (2D π‐COFs) combine in‐plane π‐delocalization with periodic ...
Kexin Wang, Bin Han, Fan Qiu, Yeonsu Jeong, Yusheng Chen, Yubin Fu, Christos Gatsios, Marco Vittorio Nardi, Melanie Timpel, Yang Hou, Shun‐Qi Xu, Paolo Samorì   +11 more
wiley   +2 more sources

Harnessing light energy with molecules. [PDF]

Beilstein J Org Chem
Han GGD, Nielsen MB, Wegner HA.
europepmc   +1 more source

Development of chalcones structure‐related to avobenzone: Photoprotection, photostability, and safety evaluation

Photochemistry and Photobiology, EarlyView.
Scaffold hopping strategy used to develop chalcones structure‐related to the avobenzone tautomer. Positive aspects of 2‐hydroxychalcones are highlighted. Abstract Chalcones are α,β‐unsaturated ketones with extended π‐conjugation, making them promising scaffolds for the development of organic UV filters.
Gabriela Zanella Marcon, Taíne de Bastos Brum, Nayara Fernanda Tokashike de Araujo, Gabriela Lascala Ramos, Bruna Cogo Borin, Ruth Barin, Aline Ferreira Ourique, André Passaglia Schuch, Andréa Inês Horn Adams, Lorena Rigo Gaspar Cordeiro, Letícia Cruz, Fernando Fumagalli   +11 more
wiley   +1 more source

Thermally Bistable Stiff Stilbene Photoswitches and Polymer Applications. [PDF]

Chem Rec
Imato K.
europepmc   +1 more source

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

Photoswitchable Silver(I) Complex with Anticancer and Antimicrobial Potential. [PDF]

ACS Omega
Kręcigłowa A, Stolarek-Sipior M, Jagielska P, Kamiński K, Skóra M, Gryl M, Sikorski A, Rak J, Nowakowska M, Szczubiałka K.   +9 more
europepmc   +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

Characterization of Grape Cane Stilbenoids and Their Photo‐Degradation Products by HPLC‐DAD Coupled With Trapped Ion Mobility Spectrometry and High‐Resolution Tandem Mass Spectrometry

Rapid Communications in Mass Spectrometry, Volume 40, Issue 15, 15 August 2026.
ABSTRACT Rationale Bioactive (E)‐stilbenoids in vine extracts are prone to light‐induced transformation into the respective (Z)‐isomers and further degradation products, often resulting in a loss of bioactivity. We sought to study stilbenoid degradation beyond that of the well‐researched resveratrol due to the high diversity of stilbenoids in nature ...
Paul Besrukow, Friederike A. Schnitker, Ralf Schweiggert, Christof B. Steingass   +3 more
wiley   +1 more source

Photochromic Cholesteric Liquid Crystals via Arylazopyrazole Functionalization of Hydroxypropyl Cellulose. [PDF]

Adv Mater
Fine SG, Hildenhagen N, Linke WR, Hansen MR, Ravoo BJ, Chazot CAC.   +5 more
europepmc   +1 more source