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Encapsulation of testosterone by chitosan nanoparticles.
P Chanphai1, H A Tajmir-Riahi1
1Department of Chemistry-Biochemistry and Physics, University of Québec at Trois-Rivières, C. P. 500, TR, Quebec G9A 5H7, Canada.
International Journal of Biological Macromolecules
|February 8, 2017
Summary
Chitosan nanoparticles effectively load testosterone, with loading efficacy increasing with chitosan size. These nanoparticles show potential for in vitro testosterone delivery.
Area of Science:
- Materials Science
- Nanotechnology
- Biochemistry
Background:
- Testosterone delivery systems are crucial for therapeutic applications.
- Chitosan nanoparticles offer biocompatibility and tunable properties for drug encapsulation.
Purpose of the Study:
- To investigate the loading of testosterone onto chitosan nanoparticles.
- To characterize the testosterone-chitosan interaction and loading efficiency.
Main Methods:
- Spectroscopic methods
- Thermodynamic analysis
- Transmission Electron Microscopy (TEM)
- Computational modeling
Main Results:
- Testosterone-chitosan binding primarily involves hydrogen bonding and van der Waals forces.
- Increased chitosan size led to more stable steroid-chitosan conjugates and higher loading efficacy (40-55%).
- Testosterone encapsulation significantly modified chitosan nanoparticle morphology.
Conclusions:
- Chitosan nanoparticles are effective carriers for testosterone.
- The size of chitosan nanoparticles influences loading capacity and conjugate stability.
- These nanoparticles demonstrate potential for in vitro testosterone transport.

