Reactive Oxygen Species-Responsive Pillararene-Embedded Covalent Organic Frameworks with Amplified Antimicrobial Photodynamic Therapy for the Targeted Elimination of Periodontitis Pathogens
Shuang Liang, Meng-Hao Li, Man-Lin Qi, Hui Hui, Hong-Pu Zhang, Jing Zhou, Lin Wang, Ying-Wei Yang
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引用次数: 0
Abstract
Reactive oxygen species (ROS)-responsive drug delivery systems possess immense potential for targeted delivery and controlled release of therapeutics. However, the rapid responsiveness to ROS and sustained release of antibacterial drugs are often limited by the challenging microenvironment of periodontitis. Integrating ROS-responsive drug delivery systems with photocatalytic technologies presents a strategic approach to overcome these limitations. Herein, a pillararene-embedded covalent organic framework (PCOF) incorporating the antibacterial prodrug thioacetal (TA) has been developed to treat periodontitis. This drug-loaded nanoplatform, namely TA-loaded PCOF, utilizes the self-amplifying ROS property to enhance therapeutic efficacy. PCOFs demonstrate exceptional photosensitivity and ROS generation capabilities when employed as drug carriers. When exposed to ROS, TA within the nanoplatform was activated and cleaved into cinnamaldehyde (CA), a highly potent antibacterial compound. By leveraging visible light to activate the site-specific infection targeting, TA-loaded PCOF effectively alleviated periodontitis, thereby advancing the field of antibacterial drug delivery systems.
期刊介绍:
Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including:
- Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale
- Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies
- Modeling and simulation of synthetic, assembly, and interaction processes
- Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance
- Applications of nanoscale materials in living and environmental systems
Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.