Results 71 to 80 of about 30,490 (251)
Aqueous azobenzene switching [PDF]
Science, 2017 Photoswitches Photoswitching molecules can enable targeted delivery of drugs in the body, but the body is best penetrated by near-infrared radiation (wavelengths between 700 and 900 nanometers). Most photoswitching processes in molecules require shorter wavelengths, and high light intensities are needed to trigger two-photon processes.
openaire +1 more source
Advanced Materials, EarlyView.We produce a new derivative of hydroxypropyl cellulose functionalized with arylazopyrazole side chains and demonstrate its photoswitchable behaviors in dilute and concentrated aqueous solutions, ultimately designing a series of photochromic cholesteric materials that can be photopatterned as write‐erase displays.
Simona G. Fine +5 more
wiley +1 more source
, 2016 Recent experiments have demonstrated that in a dense monolayer of photo-switchable dye Methyl-Red molecules the relaxation of an initial birefringence follows a power-law decay, typical for glass-like dynamics.
Charbonneau, Patrick +2 more
core +1 more source
Smart worm-like micelles responsive to CO₂/N₂ and light dual stimuli [PDF]
, 2017 CO₂/N₂ and light dual stimuli-reponsive worm-like micelles (WLMs) were obtained by addition of a relatively small amount of a switchable surfactant, 4-butyl-4´-(4-N,N-dimethylhexyloxy-amine) azobenzene bicarbonate (AZO-B6-CO₂), sensitive to the same ...
Binks, Bernard P. +4 more
core +1 more source
Photomodulation of Two-Dimensional Self-Assembly of Azobenzene–Hexa-peri-hexabenzocoronene–Azobenzene Triads [PDF]
Chemistry of Materials, 2019 Achieving exquisite control over self-assembly of functional polycyclic aromatic hydrocarbons (PAH) and nanographene (NG) is essential for their exploitation as active elements in (nano)technological applications. In the framework of our effort to leverage their functional complexity, we designed and synthesized two hexa-peri-hexabenzocoronene (HBC ...
Ian Cheng-Yi Hou +8 more
openaire +6 more sources
Multifunctional Oxadiazole‐Based Polycatenars: A Pathway to Polar Columnar Phases
Advanced Materials Interfaces, EarlyView.Aromatic core fluorination directs oxadiazole‐based polycatenars into ferroelectric and antiferroelectric columnar phases with supergelation and photo‐responsiveness. ABSTRACT Polar columnar liquid crystals (LCs) offer a promising pathway to nanostructured architectures for next‐generation ferroelectric devices.
Yu Cao +7 more
wiley +1 more source
Light‐Programmable Interfaces: From Molecular Photoswitching to Adaptive Membrane Separations
Advanced Materials Interfaces, EarlyView.This review advances an interface‐centered framework for light‐responsive membranes, linking molecular photoswitches (azobenzene (AZO), spiropyran (SP), diarylethene (DAE), donor–acceptor Stenhouse adducts (DASA), photoacid) to integration strategies in polymeric, porous, self‐assembled, and mixed‐matrix systems.
Liangliang Zhang +6 more
wiley +1 more source
Unusual photo-tunable mechanical transformation of azobenzene terminated aliphatic polycarbonate
Nature CommunicationsHuman substance needsśś have been enriched by the development of smart-responsive materials possessing unique responsiveness and mechanical variability.
Chaoxian Chen +4 more
doaj +1 more source
Structure dependence of photochromism and thermochromism of azobenzene-functionalized polythiophenes
eXPRESS Polymer Letters, 2007 Two novel azobenzene-functionalized polythiophenes, poly[4-((4-(phenyl)azo)phenoxy)butyl-3-thienylacetate] (P4) and the copolymer of 3-hexylthiophene and 4-((4-(phenyl)azo)phenoxy)butyl-3-thienylacetate (COP64) have been synthesized.
doaj +1 more source
Nonlocal communication with photoinduced structures at the surface of a polymer film
, 2005 Nonlocal communication between two laser light beams is experimented in a photochromic polymer thin films. Information exchange between the beams is mediated by the self-induction of a surface relief pattern.
Barille, R. +5 more
core +1 more source