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Photoresponsive nitric oxide (NO)-releasing materials (NORMs) enable the spatiotemporal delivery of NO to facilitate their potential applications in physiological conditions. Here two novel metal-organic frameworks (MOFs)-based photoactive NORMs achieved by the incorporation of prefunctionalized NO donors into the photosensitive Fe-MOFs via a postmodification strategy is reported. The modified Fe-MOFs display superior photoactivity of NO release when exposed to visible light (up to 720 nm). Significantly, the visible-light-driven NO release properties are further corroborated by their efficient antibacterial performance.
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http://dx.doi.org/10.1002/smll.202305943 | DOI Listing |
ACS Omega
July 2025
Department of Physics and Astronomy, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan.
Poly-(heptazine imide) (PHI), a covalent organic framework containing metal ions, is a novel, visible-light-driven photocatalyst. The physical properties of PHI vary depending on the type of metal ion. The photoresponse current of Ag-PHI exhibits negative photoconductivity (NPC), in contrast to PHIs containing many other metals.
View Article and Find Full Text PDFAdv Mater
July 2025
State Key Laboratory of Precision and Intelligent Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China.
Photomanipulation of the environmental pH plays a crucial role in modulating the reaction kinetics and engineering material functionalities. While conventional merocyanine photoacids offer pH modulability, their practical implementation is fundamentally constrained by aqueous dissolution and laborious regeneration. Here, a transformative strategy is reported through the covalent integration of merocyanine photoacids into hydrophilic polymer networks to construct regenerative photoacid matrices, which stably retain protons in the dark and spatiotemporally liberate them upon illumination.
View Article and Find Full Text PDFMolecules
June 2025
Department of Chemistry, Jeonbuk National University, Jeonju 54896, Republic of Korea.
Efficient photocatalysts based on composite materials are essential for addressing environmental pollution and enhancing water purification. This study presents a novel BiOI/VO nanocomposite (BVNC) with a flower-like layered structure, synthesized via a low-temperature solvothermal process followed by high-pressure annealing for visible light (VL)-driven dye degradation and antibacterial activities. Compared to individual BiOI nanoparticles (BOINP) and VO nanoparticles (VONP), under VL, the BVNC demonstrated significantly enhanced photocatalytic and antibacterial activity.
View Article and Find Full Text PDFChem Commun (Camb)
April 2025
Institute of Organic Chemistry, Faculty of Chemistry and Pharmacy, University of Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany.
Visible light-driven proton transfer is crucial in nature and catalysis. Here, we report that protic merocyanine-based photoswitches act as efficient and recyclable homogeneous Brønsted acid catalysts under blue or green light irradiation. Photo-promoted proton release efficiently enables Friedel-Crafts reactions with easy catalyst recovery and reuse.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
April 2025
Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130021, P. R. China.
Photomechanically responsive dynamic molecular crystals are central to developing efficient, rapid, and robust materials capable of conversion of light energy to mechanical work. However, unlike some other, mainly photochromic molecular solar thermal energy storage (MOST) systems, solids that undergo photoinduced [2+2] cycloaddition have not been thoroughly explored for powering reversible actuation, despite that this reaction system carries potential in the heavily strained bonds of the cyclobutane ring. In this study, we propose that broadband-light-induced [2+2] cycloaddition can be used to store energy and actuate dynamic organic crystals by irradiation with visible light.
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