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Covalent Organic Framework-Titanium Oxide Nanocomposite for Enhanced Sonodynamic Therapy
Lihan Cai1,2, Chunling Hu1,2, Sainan Liu1,2
1State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, P. R. China.
Bioconjugate Chemistry
|March 12, 2021
Summary
New covalent organic framework-titanium oxide nanoparticles (COF-TiO2 NPs) enhance sonodynamic therapy (SDT) by generating more reactive oxygen species (ROS). This improved SDT shows significant tumor inhibition in vitro and in vivo.
Area of Science:
- Nanotechnology
- Biomedical Engineering
- Materials Science
Background:
- Sonodynamic therapy (SDT) offers deep tissue penetration for cancer treatment.
- Developing effective sonosensitizers to generate reactive oxygen species (ROS) remains a critical challenge.
Purpose of the Study:
- To synthesize novel covalent organic framework-titanium oxide nanoparticles (COF-TiO2 NPs) as advanced sonosensitizers.
- To evaluate the enhanced ROS generation and sonodynamic therapeutic efficacy of COF-TiO2 NPs.
Main Methods:
- COF-TiO2 NPs were synthesized using covalent organic frameworks (COFs) as templates.
- ROS generation and SDT performance were assessed under ultrasound (US) irradiation.
- In vitro and in vivo studies were conducted to evaluate tumor inhibition.
Main Results:
- COF-TiO2 NPs demonstrated significantly improved ROS generation compared to pure TiO2 NPs.
- The narrower band gap of COF-TiO2 NPs contributed to enhanced SDT performance.
- Effective tumor growth inhibition was observed in both in vitro and in vivo experiments.
Conclusions:
- COF-TiO2 NPs represent a promising advancement in sonosensitizer development for enhanced SDT.
- The synthesized nanomaterial exhibits potent anti-tumor effects, broadening the biomedical applications of COF-based composites.
