Results 61 to 70 of about 20,971 (273)
Molecules, 2011 Optically active binaphthyl-azobenezene cyclic dyads were synthesized to develop a photochromic switching molecule. Azobenezene moieties were cis-trans isomerized by photoirradiation.
Masuki Kawamoto, Kazuto Takaishi
doaj +1 more source
Azobenzene‐Oxindole Photochromic Dyads
Angewandte ChemieAbstract Manipulation of molecular geometry using photoresponsive units is a powerful tool in supramolecular chemistry, smart materials, and photopharmacology. Current synthetic chemistry offers many responsive molecules that perform such a task.
Ovalle, Marco +2 more
openaire +3 more sources
Spatial Homeotropic and Planar Liquid Crystal Alignment Patterning
Advanced Materials Interfaces, EarlyView.A voltage‐assisted two‐step photoalignment methodology achieves precise micro‐patterning of alternating planar and homeotropic liquid crystal domains. Applying an AC electric field during in situ laser illumination minimizes phase retardation, reducing the required exposure dose. This cooperative mechanism enables high‐resolution spatial patterning and
Mingye Li, Inge Nys, Jeroen Beeckman
wiley +1 more source
Monitoring cis-to-trans isomerization of azobenzene using Brillouin microscopy
JPhys PhotonicsBrillouin spectroscopy is commonly used to study the acoustic properties of materials. Here we explored its feasibility in studying the photoinduced isomerization of azobenzene.
Zhe Wang +5 more
doaj +1 more source
3D‐Printed Actuator Powered by Liquid Crystal Elastomer Muscles at the Water–Air Interface
Advanced Materials Technologies, EarlyView.Soft robots for unstructured environments require responsive, durable actuators. Liquid crystal elastomers (LCEs) provide large reversible deformations under thermal or optical stimuli. Direct ink writing enables fabrication of LCE actuators integrated with silicone, with mesogen chemistry and oligomers optimized for printable inks.
Cecilie Ryberg +5 more
wiley +1 more source
Photocontrolled DNA minor groove interactions of imidazole/pyrrole polyamides
Beilstein Journal of Organic Chemistry, 2020 Azobenzenes are photoswitchable molecules capable of generating significant structural changes upon E-to-Z photoisomerization in peptides or small molecules, thereby controlling geometry and functionality.
Sabrina Müller +5 more
doaj +1 more source
Advanced Optical Materials, EarlyView.Naphthopyran–benzophenone compounds can act simultaneously as photoinitiators and photochromic molecules for two‐photon polymerization. Using a single‐step process, liquid photoresist is encapsulated within polymerized 3D microstructures, preserving reversible UV–vis photochromism after fabrication.
João P. Leote +5 more
wiley +1 more source
Azobenzene-Based Light-Responsive Hydrogel System
, 2016 A deoxycholic acid-modified β-cyclodextrin derivative (2) and an azobenzene-branched poly(acrylic acid) copolymer (3) were prepared, and the association and dissociation of 2 with the trans/cis-azobenzene units in 3 were characterized by UV/vis ...
Yan-Li Zhao (752360) +1 more
core +2 more sources
Advanced Optical Materials, EarlyView.A maskless, SLM‐driven approach enables the deterministic inscription of arbitrary topographical features in azopolymer films by mapping complex vectorial light fields onto local viscoplastic stress. This platform allows for the rapid generation and dynamic erasure of high‐aspect‐ratio micro‐spikes, offering a versatile tool for reconfigurable flat ...
Jonas Strobelt +3 more
wiley +1 more source
Hydrophilic Polymers in Gels and Solutions: Surface Properties and Structure [PDF]
, 2008 Changes in the wetting properties of thin films of polyethyleneglycol (PEG) end-capped with fluoroalkyl groups are measured when the films are equilibrated at various relative humidity (RH).
Mackel, Michael John
core +1 more source