Results 51 to 60 of about 4,387 (184)

Hemiphosphoindigos as a platform for chiroptical or water soluble photoswitching

Nature Communications
Photoswitches are important molecular tools to precisely control the behavior of matter by using light irradiation. They have found application in virtually all applied chemical fields from chemical biology to material sciences. However, great challenges
Fabien Kohl, Theresa Vogl, Frank Hampel, Henry Dube   +3 more
doaj   +1 more source

On–off conduction photoswitching in modelled spiropyran-based metal-organic frameworks

Communications Chemistry, 2023
Materials with photoswitchable electronic properties and conductance values that can be reversibly changed over many orders of magnitude are highly desirable.
Mersad Mostaghimi, Helmy Pacheco Hernandez, Yunzhe Jiang, Wolfgang Wenzel, Lars Heinke, Mariana Kozlowska   +5 more
doaj   +1 more source

Greener Solvents for the Photoisomerization and Catalytic Heat Release of a Norbornadiene‐Based Molecular Solar Thermal Energy Storage System

Advanced Science, EarlyView.
A Molecular Solar Thermal (MOST) system combining a scalable norbornadiene–quadricyclane photoswitch, a biodegradable solvent, propylene carbonate, and noble and first‐row metal catalysts, is presented. Propylene carbonate boosts photoisomerization quantum yield by 25% compared to toluene, prolongs energy storage by an additional 15 days, and enables ...
Lucien Magson, Helen Hölzel, Rebecca J. Salthouse, Liang Fei, Pedro Ferreira, Vitor A. S. Almodovar, Kasper Moth‐Poulsen, Ignacio Funes‐Ardoiz, Diego Sampedro   +8 more
wiley   +1 more source

Chemical Switching Between B2N and B2C Homoaromaticity

Angewandte Chemie, EarlyView.
We report the synthesis of homoaromatic 1‐aza‐2,4‐diazadiboretane with a bicyclic four‐membered NB2C motif and demonstrate experimentally and theoretically that the homoaromatic delocalization can also be chemically shifted from the B2N to the B2C moiety by deprotonation of the ring carbon atom.
Tim Wiesmeier, Philipp Grewelinger, Carsten Präsang, Bernd Morgenstern, Diego M. Andrada, David Scheschkewitz   +5 more
wiley   +2 more sources

Non‐Covalent Reversibly Photoconvertible Fluorescent Tags for Wash‐Free Protein Labeling

Advanced Science, EarlyView.
FAST proteins combined with one or two fluorogens undergo reversible fluorescence switching or photoconversion through photoisomerization. At low fluorogen concentration and high light intensity, they act as negative or positive photoswitchers and photoconvertible tags, which are promising for discriminating FAST variants.
Mrinal Mandal, Yuriy Shpinov, Aliénor Lahlou, Fivos Pham, Lina El Hajji, Ian Coghill, Eve Laureau, Marie‐Aude Plamont, Franck Perez, Thomas Le Saux, Isabelle Aujard, Arnaud Gautier, Ludovic Jullien   +12 more
wiley   +1 more source

Influence of Substitution on the Interplay of Photochemical Switching and Phase Transitions in Azobenzene‐Based Molecular Materials

Angewandte Chemie, EarlyView.
This study investigates the influence of several substituents at different positions on photochemical and thermal properties of azobenzene‐based materials to provide valuable structure‐property relationships for the specific design of azobenzene‐based materials for future energy storage and phase change materials. ABSTRACT Understanding and translating
Conrad Averdunk, Hermann A. Wegner
wiley   +2 more sources

Decoding Biomolecular Phase Separation: From Physiological Roles to Pathological Mechanisms and Therapeutic Biomaterials Design

Advanced Science, EarlyView.
This review systematically elaborates on the mechanisms underlying physiological regulation and pathological dysregulation of biomolecular phase separation. It also summarizes advances in phase‑separation‑targeted therapeutic strategies and the design of functional biomaterials inspired by this process.
Jiawei Zhu, Jingbo Dong, Qiufang Gong, Xuejiao Song, Zhifa Shen, Chao Liang   +5 more
wiley   +1 more source

Chiroptical Switching by Stereoselective Photochemical Sigmatropic Rearrangements: Experimental Realization of Calderoselectivity

Angewandte Chemie, EarlyView.
Calderoselectivity is established as a stereochemical principle for sigmatropic rearrangements. A homoannulene‐based chiroptical photoswitch undergoes a photochemical [1,11] sigmatropic rearrangement with control of the acyl movement on top of the cyclic π system.
Anne Krenkel, Frederike Beyer, Malte Feßner, Trung Tran Ngoc, Tobias Rüffer, Dominik Hornig, Martin Breugst, Christian Merten, Johannes F. Teichert   +8 more
wiley   +2 more sources

Reversible photoswitching of the DNA-binding properties of styrylquinolizinium derivatives through photochromic [2 + 2] cycloaddition and cycloreversion

Beilstein Journal of Organic Chemistry, 2020
It was demonstrated that styrylquinolizinium derivatives may be applied as photoswitchable DNA ligands. At lower ligand:DNA ratios (≤1.5), these compounds bind to duplex DNA by intercalation, with binding constants ranging from Kb = 4.1 × 104 M to 2.6 ...
Sarah Kölsch, Heiko Ihmels, Jochen Mattay, Norbert Sewald, Brian O. Patrick   +4 more
doaj   +1 more source

Multidimensionally Programming Photoswitching via Orthogonal Covalent‐Noncovalent Chemistry for Dual‐Track Time‐Resolved Optical Encryption

Advanced Science, EarlyView.
A dual‐track time‐resolved encryption strategy with independent information display during photo‐bleaching and thermal‐recovery stages has been realized through multiple temporal encoding units derived from orthogonal covalent‐noncovalent programming of donor–acceptor Stenhouse adduct photoswitching.
Qi Guo, Lewei Li, Meihui Yan, Yuzhao Yang, Dengchong Feng, Shaolin Lu, Cheng Wang, Min Cao, Haiqiang Wu, Zhongke Yuan, Dingshan Yu, Xudong Chen   +11 more
wiley   +1 more source