Journal ArticleDOI
Photoisomerization in different classes of azobenzene
TLDR
This critical review details the studies completed to date on the 3 main classes of azobenzene derivatives and explains the mechanism behind the isomerization mechanism.Abstract:
Azobenzene undergoes trans → cisisomerization when irradiated with light tuned to an appropriate wavelength. The reverse cis →transisomerization can be driven by light or occurs thermally in the dark. Azobenzene's photochromatic properties make it an ideal component of numerous molecular devices and functional materials. Despite the abundance of application-driven research, azobenzene photochemistry and the isomerization mechanism remain topics of investigation. Additional substituents on the azobenzene ring system change the spectroscopic properties and isomerization mechanism. This critical review details the studies completed to date on the 3 main classes of azobenzene derivatives. Understanding the differences in photochemistry, which originate from substitution, is imperative in exploiting azobenzene in the desired applications.read more
Citations
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Journal ArticleDOI
An Optimized Glutamate Receptor Photoswitch with Sensitized Azobenzene Isomerization.
Marta Gascón-Moya,Arnau Pejoan,Mercè Izquierdo-Serra,Silvia Pittolo,Gisela Cabré,Jordi Hernando,Ramon Alibés,Pau Gorostiza,Félix Busqué +8 more
TL;DR: The molecular system developed herein is a very promising candidate for evoking large photoinduced biological responses during the multiphoton operation of neuronal glutamate receptors with NIR light, which require accumulation of the protein-bound cis state of the switch upon repeated illumination.
Journal ArticleDOI
Visible and near-infrared light activated azo dyes
Huijuan Chen,Huijuan Chen,Weijie Chen,Weijie Chen,Yan Lin,Yuan Xie,Sheng Hua Liu,Sheng Hua Liu,Jun Yin,Jun Yin +9 more
TL;DR: In this paper, a summary of molecular design strategies for driving the isomerization of azo derivatives with visible light and near-infrared light is provided, including smart design directly excited by visible light, the addition of upconversion nanoparticles, the employment of two-photon absorption, indirect excitation in combination with metal sensitizer.
Journal ArticleDOI
Surface with Reversible Green-Light-Switched Wettability by Donor–Acceptor Stenhouse Adducts
TL;DR: In this article, the authors designed surfaces with reversible green-light-switched wettability via donor-acceptor Stenhouse adducts (DASAs), which were prepared by coating the surfaces of silica micro/nanoparticles with polydopamine and postmodifying with DASA molecules.
Journal ArticleDOI
Characterization of a photoswitching chelator with light-modulated geometric, electronic, and metal-binding properties.
TL;DR: This work introduces HAPI as the prototype for a class of molecules with properties that may be optimized for a variety of experimental applications that take advantage of phototriggered molecular changes.
Journal ArticleDOI
Thermal Isomerization of Hydroxyazobenzenes as a Platform for Vapor Sensing.
TL;DR: It is demonstrated that thin polymer films containing hydroxyazobenzenes offer a conceptually novel platform for sensing hydrogen-bonding vapors in the environment and Employing isomerization kinetics of azobenzees for vapor sensing opens new intriguing possibilities for using azobenzene molecules in the future.
References
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Journal ArticleDOI
Photomechanics: directed bending of a polymer film by light.
TL;DR: It is shown that a single film of a liquid-crystal network containing an azobenzene chromophore can be repeatedly and precisely bent along any chosen direction by using linearly polarized light.
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Light-driven motion of liquids on a photoresponsive surface
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Journal ArticleDOI
Design and synthesis of chromophores and polymers for electro-optic and photorefractive applications
TL;DR: The ability of nonlinear optical materials to transmit, process and store information forms the basis of emerging optoelectronic and photonic technologies as discussed by the authors, where organic chromophore-containing polymers, in which the refractive index can be controlled by light or an electric field, are expected to play an important role.
Journal ArticleDOI
Ultrafast Dynamics of Photochromic Systems.
Naoto Tamai,Hiroshi Miyasaka +1 more
TL;DR: Reaction dynamics of the photochromic systems such as spiropyran, flugide and diarylethene derivatives in femto- to nano-second time region was reviewed and mechanisms of rapid reaction channels in various phases were discussed.