Structure Engineered High Piezo-Photoelectronic Performance for Boosted Sono-Photodynamic Therapy
Rui Zhang1, Dan Yang1, Pengyu Zang1
1Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China.
Advanced Materials (Deerfield Beach, Fla.)
|November 7, 2023
Summary
This study introduces a novel watermelon-like sono-photosensitizer (ZnSnO3@UCNPs) that overcomes limitations in sono-photodynamic therapy. The design enhances energy transfer and piezoelectric effects for improved therapeutic efficacy.
Area of Science:
- Materials Science
- Nanotechnology
- Biomedical Engineering
Background:
- Sono-photodynamic therapy faces challenges with light penetration depth and charge carrier recombination.
- Developing efficient sono-photosensitizers is crucial for advanced therapeutic applications.
Purpose of the Study:
- To design and synthesize a novel all-in-one sono-photosensitizer with enhanced piezo-photoelectronic properties.
- To improve the efficiency of sono-photodynamic therapy by addressing current limitations.
Main Methods:
- Synthesized orthorhombic ZnSnO3 quantum dots (QDs) encapsulated in hexagonal upconversion nanoparticles (UCNPs) using a one-pot thermal decomposition method.
- Created a watermelon-like structured sono-photosensitizer (ZnSnO3@UCNPs).
- Investigated the piezo-photoelectronic effects and Förster resonance energy transfer (FRET) efficiency.
Main Results:
- Achieved ultrahigh FRET efficiency of up to 80.30% due to the unique structure and close contact between UCNPs and ZnSnO3 QDs.
- Demonstrated enhanced piezocatalytic performance by generating internal electric fields via ultrasonic and near-infrared laser co-activation, preventing charge carrier recombination.
- Realized synergistic efficacy by combining photodynamic and piezoelectric effects.
Conclusions:
- The developed ZnSnO3@UCNPs sono-photosensitizer offers a novel strategy for highly efficient sono-photodynamic therapy.
- Structural design of nanoparticles is key to overcoming limitations in therapeutic light penetration and charge carrier dynamics.
- This approach shows significant potential for advancing sono-photodynamic therapeutic strategies.
