Facile Construction of Fully Conjugated Benzotristhiazole‐Based Covalent Organic Frameworks for Efficient Photocatalytic H2O2 Production DOI
Yuancheng Wang, Xin Zhao, Guangchao Han

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: June 1, 2025

Abstract Vinylene‐linked covalent organic frameworks (COFs) have garnered significant attention owing to their extensive π‐electron delocalization and inherent stability. However, the synthesis difficulty lack of functional monomers available for Aldol reaction greatly restrict structural diversity application. Herein, a novel benzotristhiazole‐based monomer (BTZ) featuring rigid π‐conjugated structure is synthesized. Using this monomer, three highly crystalline vinylene‐linked COFs are successfully synthesized via trace solvent‐assisted strategy. Benefiting from stable N, S‐codoped conjugated structures, these exhibited excellent photocatalytic performance H 2 O generation. The incorporation triazine units found significantly improve activity, with styryl‐substituted unit demonstrating superior efficiency in promoting production compared phenyl‐substituted counterpart. Notably, BTZ‐3 exhibit hydrogen peroxide generation rate 3267 µmol h −1 g when benzyl alcohol (BA) employed as sacrificial agent. This research provides new synthetic strategy will facilitate diversities applications COFs.

Language: Английский

Organic Radiosensitizer with Aggregation-Induced Emission Characteristics for Tumor Ablation through Synergistic Apoptosis and Immunogenic Cell Death DOI
Danni Xie,

Xueke Yan,

Shangping Wang

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: April 9, 2025

Inspired by the clinical application of thermotherapy to promote efficacy radiotherapy, this study demonstrates multimodal diagnostic pure organic nanoparticles in combined treatment tumors through imaging and photothermal properties. The developed demonstrated unique properties multiple functionalities, including excellent photostability thermostability, strong fluorescence emission near-infrared-II (NIR-II) region, extremely high conversion efficiency, good biocompatibility, significant radiosensitizing properties, effective tumor site accumulation. In vitro vivo evaluations that these are ideal candidates for synergistic radiotherapy guided NIR-II fluorescence, NIR-I photoacoustic, trimodal imaging. They act as radiosensitizers alleviating hypoxic microenvironment, modulating cell cycle, inducing apoptosis immunogenic death during which may provide a potential approach tumors.

Language: Английский

Citations

0
Facile Construction of Fully Conjugated Benzotristhiazole‐Based Covalent Organic Frameworks for Efficient Photocatalytic H2O2 Production DOI
Yuancheng Wang, Xin Zhao, Guangchao Han

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: June 1, 2025

Abstract Vinylene‐linked covalent organic frameworks (COFs) have garnered significant attention owing to their extensive π‐electron delocalization and inherent stability. However, the synthesis difficulty lack of functional monomers available for Aldol reaction greatly restrict structural diversity application. Herein, a novel benzotristhiazole‐based monomer (BTZ) featuring rigid π‐conjugated structure is synthesized. Using this monomer, three highly crystalline vinylene‐linked COFs are successfully synthesized via trace solvent‐assisted strategy. Benefiting from stable N, S‐codoped conjugated structures, these exhibited excellent photocatalytic performance H 2 O generation. The incorporation triazine units found significantly improve activity, with styryl‐substituted unit demonstrating superior efficiency in promoting production compared phenyl‐substituted counterpart. Notably, BTZ‐3 exhibit hydrogen peroxide generation rate 3267 µmol h −1 g when benzyl alcohol (BA) employed as sacrificial agent. This research provides new synthetic strategy will facilitate diversities applications COFs.

Language: Английский

Citations

0