Similar Publications

570 nm/770 nm light-excited deep-red fluorescence switch based on dithienylethene derived from BF-curcuminoid.

Chem Sci

December 2024

National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University Wuhan 430079 P. R. China

Developing dithienylethene (DTE)-based fluorescence switches triggered by biocompatible visible light has always been a long-term goal in view of their potential in numerous biological scenarios. However, their practical availability is severely limited by the short visible light (generally less than 500 nm) required for photocyclization, their inability to achieve red or near-infrared emission, and their short fluorescence lifetimes. Herein, we present a novel DTE derivative featuring a dimethylamine-functionalized BF-curcuminoid moiety (NBDC) by using an "acceptor synergistic conjugation system" strategy.

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Optical control of cardiac electrophysiology by the photochromic ligand azobupivacaine 2.

Br J Pharmacol

November 2024

Institute of Neural and Sensory Physiology, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany.

Article Synopsis
  • * The study explored the use of a light-sensitive compound called azobupivacaine (AB2) to control heart activity without genetic modification, showing promising results in mouse hearts.
  • * AB2 was found to effectively manage heart rhythms by blocking specific ion channels and converting arrhythmias to normal rhythm, suggesting new possibilities for developing light-based defibrillation methods.
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Recent Development of Photochromic Polymer Systems: Mechanism, Materials, and Applications.

Research (Wash D C)

June 2024

Frontiers Science Center for Flexible Electronics (FSCFE) and Xi'an Institute of Flexible Electronics (IFE), Northwestern Polytechnical University, Xi'an 710072, China.

Photochromic polymer is defined as a series of materials based on photochromic units in polymer chains, which produces reversible color changes under irradiation with a particular wavelength. Currently, as the research progresses, it shows increasing potential applications in various fields, such as anti-counterfeiting, information storage, super-resolution imaging, and logic gates. However, there is a paucity of published reviews on the topic of photochromic polymers.

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Active control of polariton-enabled long-range energy transfer.

Nanophotonics

June 2024

NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, I-56127 Pisa, Italy.

Optical control is achieved on the excited state energy transfer between spatially separated donor and acceptor molecules, both coupled to the same optical mode of a cavity. The energy transfer occurs through the formed hybrid polaritons and can be switched on and off by means of ultraviolet and visible light. The control mechanism relies on a photochromic component used as donor, whose absorption and emission properties can be varied reversibly through light irradiation, whereas in-cavity hybridization with acceptors through polariton states enables a 6-fold enhancement of acceptor/donor contribution to the emission intensity with respect to a reference multilayer.

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Article Synopsis
  • Researchers created a new type of photoswitchable ligand called azImBA by combining azobenzene with a unique imidazobenzoxazol-1-ylidene framework, allowing for precise control over metal coordination.
  • Gold(I) complexes using these ligands show efficient bidirectional isomerization when exposed to visible light, acting as a switch to modify the reactivity of gold compounds by up to 100 times.
  • The study highlights azImBA's potential as an adaptable and effective platform for creating multifunctional metal complexes, demonstrating its promise in catalysis and other applications.
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