Rationally designed porous self-assembled nanoparticles for combinational chemo-photodynamic therapy

Area of Science:

• Nanomedicine
• Materials Science
• Biochemistry

Background:

• Cancer remains a significant global health challenge despite therapeutic advancements.
• Combinational therapies, like chemotherapy and photodynamic therapy (chemo-PDT), offer promising strategies.
• Developing efficient drug delivery systems is crucial for enhancing treatment efficacy.

Purpose of the Study:

• To develop novel zinc-coordinated quercetin-based nanoparticles (ZnQ NPs) for dual-mode cancer therapy.
• To create a rapid, single-step synthesis method for these advanced nanoparticles.
• To investigate the therapeutic potential of ZnQ NPs loaded with photosensitizers for enhanced cancer treatment.

Main Methods:

• Synthesized zinc-coordinated quercetin-based nanoparticles (ZnQ NPs) in a 15-minute single-step process.
• Utilized Density Functional Theory (DFT) calculations to determine optimal binding configurations and band gaps.
• Loaded chlorin e6 (Ce6) photosensitizer into ZnQ NPs via hydrophobic interactions, creating ZnQ@Ce6 nanocomposites.

Main Results:

• Achieved rapid synthesis of pH-responsive, water-dispersible, stable, and biocompatible ZnQ NPs.
• Demonstrated high Ce6 loading capacity (19.03%) within the ZnQ@Ce6 nanocomposite.
• Observed a significant cell inhibition rate of 77% under specific light conditions, indicating enhanced therapeutic effects.

Conclusions:

• ZnQ NPs represent a novel, efficient platform for dual-mode chemo-PDT cancer therapy.
• This dual-functional platform enhances the solubility and bioavailability of photosensitizers like Ce6.
• The developed ZnQ@Ce6 nanocomposite shows significant potential for improving clinical nanomedicine and cancer treatment outcomes.