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Photodynamic Therapy with Blended Conducting Polymer/Fullerene Nanoparticle Photosensitizers
Published on: October 28, 2015
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Recent Advances in Nanoparticle-Mediated Antibacterial Photodynamic Therapy
Nivedita1, Shashwat Sharma2, Dyah Ika Krisnawati3
1International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei City 11031, Taiwan.
International Journal of Molecular Sciences
|November 27, 2025
Summary
Nanoparticle-enhanced antibacterial photodynamic therapy (aPDT) offers a promising solution to combat antibiotic resistance. This approach utilizes light-activated nanoparticles to generate reactive oxygen species (ROS) for targeted bacterial eradication, paving the way for new antimicrobial treatments.
Area of Science:
- Biomedical Engineering
- Nanotechnology
- Antimicrobial Research
Background:
- Antibiotic resistance is a growing global health crisis, necessitating novel therapeutic strategies.
- Antibacterial photodynamic therapy (aPDT) uses light-activated photosensitizers to produce reactive oxygen species (ROS) as a non-invasive antibacterial method.
- Current limitations in aPDT efficacy and delivery hinder clinical translation.
Purpose of the Study:
- To review recent advancements in nanoparticle-mediated aPDT for combating antimicrobial resistance.
- To identify key design principles for overcoming translational barriers in nanoparticle-based aPDT.
- To provide a roadmap for developing clinically applicable antimicrobial treatments.
Main Methods:
- Analysis of emerging nanoparticle platforms: upconverting nanoparticles (UCNPs), carbon dots (CDs), mesoporous silica nanoparticles (MSNs), liposomes, and metal-organic frameworks (MOFs).
- Evaluation of nanoparticle roles in enhancing photosensitizer delivery, ROS generation, and biofilm disruption.
- Examination of synergistic effects with photothermal, chemodynamic, and immunotherapeutic approaches.
Main Results:
- Nanoparticle platforms demonstrate improved photosensitizer delivery and enhanced ROS generation.
- These systems effectively disrupt biofilms and achieve targeted bacterial eradication, including against drug-resistant strains.
- Synergistic combinations with other therapies show enhanced antibacterial performance, particularly in challenging environments like chronic wounds.
Conclusions:
- Nanomaterial-mediated aPDT is a versatile and potent strategy against antimicrobial resistance.
- Future directions include AI integration for personalized treatment, rigorous clinical validation, and development of advanced nanoparticle platforms.
