PREPARATION AND CHARACTERIZATION OF PUERARIN NANOSUSPENSION BY ANTI-SOLVENT PRECIPITATION
Journal: Journal of Biopharmaceutics Sciences (JBS)
Author: Chongkai Gao Bohong Guo, Danqiao Xu, Jin Li, Yihua Chen, Xiaofang Li, Chenchen Jin, Keqing Zhang
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
The aim of this study was to prepare and characterize puerarin nanosuspension to enhance the dissolution rate and oral bioavailability of this drug. Nanosuspension was prepared by the anti-solvent precipitation method. The particle size and zeta potential of nanosuspension were 195 nm (± 8 nm) and -12.5 mV (± 1.2 mV), respectively. The morphology of nanosuspension was found to be flaky-shaped by scanning electron microscopy (SEM) observation. The X-ray powder diffraction (XRPD) and differential scanning calorimetry (DSC) analysis confirmed that the nanosuspension was in the amorphous state. The flow-through cell was considered to be the most robust dissolution method for the nanoparticulate system. The dissolution rate of nanosuspension was significantly increased by reducing the particle size. The dissolution testing in water showed that the nanosuspension exhibited significantly a higher dissolution rate with 71.9% drug dissolved in 5 min as compared to the raw puerarin (15.2%).
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