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Preparation and Characterization of Self-aggregated Nanoparticles of Chitosan-Lipoic Acid Conjugate  

Park, Eun-Ju (Department of Applied Chemistry and Biological Engineering, Chungnam National University)
Kim, Young-Jin (Department of Applied Chemistry and Biological Engineering, Chungnam National University)
Publication Information
Polymer(Korea) / v.32, no.6, 2008 , pp. 544-548 More about this Journal
Abstract
The objective of this study is to obtain the anti-oxidant nanoparticles based on biocompatible polymers. It was chosen to conjugate with chitosan as the biodegradable polymer and lipoic acid as the hydrophobic anti-oxidant. Lipoic acid helps the regeneration of exogenous and endogenous anti-oxidants vitamin as well as glutathione and hence acts as antioxidant indirectly. Chitosan was prepared from chitin which was deacetylated under alkali solution for the various reaction time. Lipoic acid-chitosan complex was confirmed by $^1H$-NMR. The critical aggregation concentration was measured using pyrene and the values were about $5{\times}10^{-3}$ g/L. The particle shapes and sizes of the chitosan-lipoic acid nano-particles were about 135 nm that measured by DLS and TEM.
Keywords
chitosan; lipoic acid; bioactive ingredient; anti-oxidant; self-aggregated nanoparticles;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By Web Of Science : 2  (Related Records In Web of Science)
Times Cited By SCOPUS : 0
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