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Preparation of multicompartment sub-micron particles using a triple-needle electrohydrodynamic device
Sheyda Labbaf1, Sanjukta Deb, Giuseppe Cama
1Department of Mechanical Engineering, Biomaterials Research Laboratory, University College London, Torrington Place, London WC1 7JE, UK.
Journal of Colloid and Interface Science
|August 27, 2013
Summary
Researchers developed a novel electrohydrodynamic method to create precise, multi-layered polymeric nanoparticles. This single-step process yields spherical sub-micron particles for advanced drug delivery applications.
Area of Science:
- Materials Science
- Biotechnology
- Nanotechnology
Background:
- Controlling size and morphology of polymeric carriers is crucial for drug delivery systems.
- Electrohydrodynamic processes offer potential for precise particle fabrication.
Purpose of the Study:
- To demonstrate the feasibility of using electrohydrodynamics for creating multi-layered sub-micron particles.
- To optimize particle characteristics for drug delivery applications.
Main Methods:
- Utilized a triple-needle electrohydrodynamic device.
- Employed three biocompatible polymers: poly(lactic-co-glycolic acid) (PLGA), polycaprolactone (PCL), and polymethylsilsesquioxane (PMSQ).
- Characterized particles using confocal, transmission, and scanning electron microscopy with focused ion beam sectioning.
Main Results:
- Successfully prepared nearly monodispersed, spherical, tri-layered sub-micron particles.
- Achieved particle sizes ranging from 320 nm (±80 nm) to 220 nm (±8 nm), controllable by working distance.
- Demonstrated negligible cytotoxicity in in vitro assays.
Conclusions:
- The electrohydrodynamic method enables single-step fabrication of multilayered sub-micron particles under ambient conditions.
- These particles show significant potential for controlled release drug delivery systems.
- The precise control over particle morphology and layering is key for optimizing drug delivery functionality.
