期刊
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
卷 38, 期 3-5, 页码 296-299出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ijbiomac.2006.03.006
关键词
tetrandrine; solid lipid nanoparticles; ultrasonication; entrapment efficiency; traditional Chinese medicine
Ultrasonication was employed to prepare solid lipid nanoparticles (SLN). The model traditional Chinese medicine, tetrandrine (TET), was incorporated into SLN. The TET-loaded SLN (TET-SLN) were spherical in the photograph of transmission electron microscope (TEM). The particle size measured by laser diffraction (LD) was found to be 157.3 +/- 8.2 nm. Zeta potential analyzer suggested the zeta potential of TET-SLN was -29.36 +/- 3.68 mV in distilled water. The entrapment efficiency (EE%) was determined with the sephadex gel chromatogram and high-performance liquid chromatogram, (HPLC), and up to 90.59% of TET was incorporated. Stability evaluation showed relatively long-term stability with only slight particle growth (P > 0.05) after storage at room temperature for 4 weeks. Therefore, ultrasonication is demonstrated to be a simple, available and effective method to prepare high quality SLN loaded traditional Chinese medicine. (c) 2006 Elsevier B.V. All rights reserved.
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