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In this study, we synthesized two new two-dimensional (2D) covalent organic frameworks (COFs), COF-TA and COF-DP, by combining 4-connected -symmetric and 2-connected non-centrosymmetric -symmetric building blocks. Unlike the typical sql topology, these COFs exhibit an unconventional topology characterized by a favorable anti-parallel stacking arrangement, which results in a lower energy configuration. Notably, COF-DP, with its unique D-A-D structural motif and photosensitive properties, demonstrates a narrow band gap and excellent photothermal conversion capabilities, making it a promising material for photothermal imaging applications.
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http://dx.doi.org/10.1039/d3cc04502a | DOI Listing |
Inorg Chem
September 2025
Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, India.
This study focuses on designing and developing a novel three-dimensional porphyrinic covalent organic framework (3D-Por-COF) to enhance anticancer sono-photodynamic therapy (SPDT). Leveraging the unique structural advantages of 3D COFs, this work addresses the limitations of traditional 2D-Por-COFs, particularly regarding reactive oxygen species (ROS) production and therapeutic efficacy. The newly developed 3D-Por-COF demonstrated significantly higher ROS generation under combined sonodynamic and photodynamic conditions, leading to an improved therapeutic effect against prostate cancer cells.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
September 2025
School of Integrated Circuits, State Key Laboratory of New Textile Materials and Advanced Processing, Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Huazhong University of Science and Technology, Wuhan, 430074, China.
Low-temperature rechargeable batteries face great challenges due to the sluggish reaction kinetics. Redox covalent organic frameworks (COFs) with porous structures provide a viable solution to accelerate the ionic diffusion and reaction kinetics at low temperatures. However, the applications of COFs in low-temperature batteries are still at their infancy stage.
View Article and Find Full Text PDFChem Commun (Camb)
September 2025
School of Chemical Sciences & Technology, School of Materials and Energy, Yunnan Provincial Center of Technology Innovation for New Materials and Equipment in Water Pollution Control, Yunnan Institute of Frontier Technologies in Water Treatment, Yunnan University, Kunming 650091, P. R. China. jqwang
In this work, a novel organic heterojunction of polydopamine (PDA)@covalent organic framework (COF) was efficiently synthesized the sonochemical method, leveraging the multifunctional properties of PDA as nucleation sites for COF shell (sonoTp-TAPB) growth. The as-prepared PDA@sonoTp-TAPB hierarchical structure delivers a photocatalytic HO production rate of 728.4 μmol g h in pure water.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
September 2025
Department of Chemistry, Korea University, Seoul, 02841, South Korea.
Chemodynamic therapy (CDT), leveraging Fenton reactions to generate hydroxyl radicals (•OH) from intracellular hydrogen peroxide (HO), offers a promising cancer treatment strategy due to its high specificity and low systemic toxicity. However, the targeted delivery of •OH-producing prodrugs using covalent organic frameworks (COFs) remains a significant challenge. Here, we report a mitochondria-targeted COF-based nano prodrug, COF-31@P, designed for enhanced CDT efficacy.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
September 2025
College of Smart Materials and Future Energy, Fudan University, Songhu Road 2005, Shanghai, 200438, P.R. China.
Solar-driven photocatalytic oxygen reduction reaction using covalent organic frameworks (COFs) offers a promising approach for sustainable hydrogen peroxide (HO) production. Despite their advantages, the reported COFs-based photocatalysts suffer insufficient photocatalytic HO efficiency due to the mismatched electron-proton dynamics. Herein, we report three one-dimensional (1D) COF photocatalysts for efficient HO production via the hydrogen radical (H•) mediated concerted electron-proton transfer (CEPT) process.
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