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Optical Trapping of Nanoparticles
Published on: January 15, 2013
Corking nano test tubes by chemical self-assembly
Heather Hillebrenner1, Fatih Buyukserin, Myungchan Kang
1Department of Chemistry, University of Florida, Gainesville, 32611-7200, USA.
Journal of the American Chemical Society
|March 30, 2006
Summary
Researchers developed nanoparticle-corked nano test tubes for drug delivery. This novel system offers a new method for controlled release of biomolecules and macromolecules within living systems.
Area of Science:
- Nanotechnology
- Materials Science
- Biomedical Engineering
Background:
- Nanoparticles are of significant interest for targeted delivery of drugs and DNA.
- Current drug release strategies rely on nanoparticle degradation or linker cleavage.
- A novel approach is needed for controlled payload release from delivery vehicles.
Purpose of the Study:
- To develop a universal delivery vehicle using template-synthesized nano test tubes.
- To demonstrate a new payload-release strategy by corking nano test tubes with nanoparticles.
- To investigate the stability and attachment of nanoparticle corks.
Main Methods:
- Template synthesis of silica nano test tubes with controlled dimensions.
- Covalent attachment of nanoparticles to the open end of nano test tubes using self-assembly.
- Utilizing imine linkages for nanoparticle corking, forming metastable structures.
Main Results:
- Successfully demonstrated the covalent corking of silica nano test tubes with nanoparticles.
- Confirmed that nanoparticle corks remain attached after template removal.
- Established metastable assembly of nano test tubes and nanoparticles using imine linkages.
Conclusions:
- Developed a proof-of-principle for nanoparticle-corked nano test tubes as a universal delivery system.
- Showcased a novel method for payload containment and potential controlled release.
- Highlighted the potential for developing various chemical linkages for tailored applications.
