The preparation of 3,5-dihydroxy-4-isopropylstilbene nanoemulsion and in vitro release
Yue Zhang1,2, Jungang Gao1, Hetang Zheng2, Ran Zhang3, Yucui Han2
1College of Chemistry and Enviromental Science, Hebei University, Baoding, China; 2School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, China; 3College of Chemical Engineering, East China University of Science and Technology, Shanghai, China
Abstract: We have reported a novel procedure to prepare 3,5-dihydroxy-4-isopropylstilbene (DHPS) nanoemulsion, using a low-energy emulsification method. Based on the phase diagram, the optimum prescription of nanoemulsion preparation was screened. With polyoxyethylenated castor oil (EL-40) as the surfactant, ethanol as the co-surfactant, and isopropyl myristate (IPM) as the oil phase, the DHPS nanoemulsion was obtained with a transparent appearance, little viscosity, and spherically uniform distribution verified by transmission electron microscopy and laser scattering analyzer. The nanoemulsion was also determined by FT-Raman spectroscopy. The DHPS nanoemulsion demonstrated good stability and stable physical and chemical properties. The nanoemulsion dramatically improved the transdermal release of DHPS (from 8.02 µg · cm-2 to 273.15 µg · cm-2) and could become a favorable new dosage form for DHPS.
Keywords: nanoemulsion, 3,5-dihydroxy-4-isopropylstilbene, DHPS, pseudo-ternary phase diagram
This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.Download Article [PDF] View Full Text [HTML][Machine readable]