Conclusion
This study highlights the therapeutic potential of Cu4.5O USNPs in treating sepsis-induced lung injury by effectively scavenging ROS and reducing cell death. These findings provide compelling evidence for the future use of copper-based nanoparticles as antioxidant therapeutics.
Methods
The synthesized nanoparticles were thoroughly characterized to assess their properties. In vitro experiments were conducted to determine the biologically effective concentration and elucidate the anti-inflammatory mechanism of action. These findings were further supported by in vivo studies, showcasing the material's efficacy in mitigating SILI.
Results
The Cu4.5O USNPs demonstrated remarkable scavenging capabilities for hydrogen peroxide (H2O2), superoxide anions (O2 -), and hydroxyl radicals (·OH), attributed to their catalase (CAT)- and superoxide dismutase (SOD)-like activities. Additionally, the nanoparticles exhibited strong anti-inflammatory effects, preserved mitochondrial homeostasis through potent ROS scavenging, and significantly reduced cell death. In vivo studies on mice further validated their protective role against SILI. The