Ferrocene-based multifunctional nanoparticles for combined chemo/chemodynamic/photothermal therapy

Area of Science:

• Biomedical Engineering
• Nanotechnology
• Materials Science

Background:

• Ferrocene derivatives offer potential for biomedical applications, yet research remains limited.
• Developing novel nanomaterials for targeted cancer therapy is a critical area of research.

Purpose of the Study:

• To synthesize and characterize novel ferrocene-based nanoparticles (Cu-Fc) for biomedical applications.
• To evaluate the potential of Cu-Fc nanoparticles as a photothermal agent and for chemodynamic therapy in tumor treatment.

Main Methods:

• Construction of ferrocene-based nanoparticles (Cu-Fc) using copper ions and ferrocene derivatives.
• In vitro and in vivo assessment of photothermal conversion properties.
• Evaluation of Fenton effect and hydroxyl radical generation under weakly acidic conditions.
• Investigation of glutathione depletion capability.
• Loading of doxorubicin hydrochloride (DOX) to create multifunctional DOX@Cu-Fc nanoparticles.

Main Results:

• Cu-Fc nanoparticles with a hydrated particle size of ~220 nm were successfully synthesized.
• Demonstrated effective in vitro and in vivo photothermal conversion for tumor treatment.
• Exhibited efficient Fenton effect in weakly acidic environments, generating hydroxyl radicals.
• Showed capability to deplete glutathione, enhancing chemodynamic therapy.
• DOX@Cu-Fc nanoparticles demonstrated synergistic therapeutic effects through combined chemo/chemodynamic/photothermal therapy.

Conclusions:

• Ferrocene-based nanoparticles (Cu-Fc) are promising novel agents for cancer therapy.
• The combination of photothermal therapy and chemodynamic therapy, enhanced by glutathione depletion, offers a potent strategy.
• Multifunctional DOX@Cu-Fc nanoparticles provide a versatile platform for enhanced tumor treatment.