Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/28298
Title: Biodegradable poly(l-lactic acid)-lavender nanocapsules : synthesis, controlled release, and application in remedy of sleep disorder
Authors: Daoud, WA
Ngan, M
Cheuk, K 
Keywords: Biodegradable polymers
Controlled release
Emulsion
Encapsulation
Poly(L-lactic acid)
Issue Date: 2010
Publisher: American Scientific Publishers
Source: Journal of nanoscience and nanotechnology, 2010, v. 10, no. 2, p. 1255-1260 How to cite?
Journal: Journal of nanoscience and nanotechnology 
Abstract: In this study, nanocapsules of poly(L-lactic acid) (PLLA) containing lavender oil were synthesized by solvent evaporation emulsion. Poly(L-lactic acid) is a biodegradable aliphatic polyester derived from lactic acid formed by bacterial fermentation of glucose-rich substances. Lavender oil is a plant extract that finds uses in phytotherapy. It is reputed as anti-septic, anti-depressant and sleep promoter. Encapsulation is a technique used to encase tiny oil droplets with a thin and permeable coating that allows for a controlled release of the volatile oil. The size and morphology of the nanocapsules were characterized by scanning electron microscope. The particle size and distribution were measured by photon correlation spectroscopy. The time-controlled release of the lavender oil was studied and the use of the lavender capsules in the remedy of sleep disorder was investigated.
URI: http://hdl.handle.net/10397/28298
ISSN: 1533-4880 (print)
DOI: 10.1166/jnn.2010.1847
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