Wavelength-Selective Light-Controlled Stepwise Photolysis from Single Gold Nanoparticles
Yekui Zhou1, Yuanwei Zhang1, Wenhai Lin1
1Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, MA, 01605, USA.
Advanced Healthcare Materials
|October 9, 2020
Summary
Researchers developed wavelength-selective sequential photolysis using single gold nanoparticles for controlled payload release. This novel system enables sequential drug delivery in living cells, offering precise spatiotemporal control over cellular events.
Area of Science:
- Nanotechnology
- Biomedical Engineering
- Photochemistry
Background:
- Controlled release of substances from nanoparticles is crucial for targeted therapies.
- Achieving sequential release from a single nanoparticle using light has been a significant challenge.
Purpose of the Study:
- To demonstrate wavelength-selective sequential photolysis from single gold nanoparticles.
- To show the capability of this system for sequential payload release in living cells.
Main Methods:
- Utilized single gold nanoparticles functionalized with photocleavable linkers.
- Employed wavelength-selective light to trigger sequential release of payloads.
- Tested the system's efficacy in releasing payloads within living cells.
Main Results:
- Successfully achieved wavelength-selective sequential photolysis from individual gold nanoparticles.
- Demonstrated sequential release of two distinct payloads within living cells.
- Showcased the potential for extending this system to multiple payloads.
Conclusions:
- Developed a novel method for light-controlled sequential payload release using single gold nanoparticles.
- This technology offers a new tool for precise spatiotemporal control of cellular events.
- The system holds promise for advanced drug delivery and cellular manipulation.
