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Shape-controlled synthesis of cubic-like selenium nanoparticles via the self-assembly method
Urarika Luesakul1, Seamkwan Komenek1, Songchan Puthong2
1Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
Carbohydrate Polymers
|August 27, 2016
Summary
Researchers developed a novel stabilizer to control selenium nanoparticle (SeNP) shape, creating cubic-like SeNPs via self-assembly. These unique nanoparticles show promise for targeted breast cancer treatment with low toxicity.
Area of Science:
- Nanotechnology
- Materials Science
- Biomedical Engineering
Background:
- Controlling nanoparticle morphology is key to enhancing their properties.
- Molecular design and synthesis offer pathways to tailored nanoparticle characteristics.
Purpose of the Study:
- To design a stabilizer for shape-controlled synthesis of selenium nanoparticles (SeNPs).
- To investigate the self-assembly mechanism and biological applications of shape-controlled SeNPs.
Main Methods:
- Synthesized selenium nanoparticles using folic acid-gallic acid-N,N,N-trimethyl chitosan (FA-GA-TMC) as a stabilizer.
- Analyzed nanoparticle morphology, size, and self-assembly interactions (electrostatic, π-π stacking, hydrogen bonding).
- Evaluated anticancer efficacy and cellular uptake in breast cancer cells versus normal cells.
Main Results:
- FA-GA-TMC stabilizer induced self-assembly of SeNPs into cubic-like structures (~300nm).
- Unmodified chitosan yielded spherical SeNPs (~200nm), demonstrating shape control.
- Cubic-like SeNPs showed significant anticancer efficacy and cellular uptake in breast cancer cells.
- Low toxicity was observed against normal cells.
Conclusions:
- A simple self-assembly method enables shape-controlled synthesis of cubic-like SeNPs.
- The FA-GA-TMC stabilizer effectively directs SeNP morphology through specific molecular interactions.
- Shape-controlled cubic-like SeNPs hold potential for targeted breast cancer therapy with improved safety profiles.
