In vitro and in vivo study of Baicalin-loaded mixed micelles for oral delivery
Related Experiment Video
Updated: Apr 17, 2026

Preparation and Characterization of Individual and Multi-drug Loaded Physically Entrapped Polymeric Micelles
Published on: August 28, 2015
Haiqun Zhang1, Xiaoye Yang1, Lili Zhao1
1a Department of Pharmaceutics , School of Pharmaceutical Sciences, Shandong University , Jinan , China and.
Abstract:
The aim of this work was to research the potential functions and the mechanism of absorption of the baicalin (BC)-loaded micelle system that contained Pluronic P123 copolymer (P123) and sodium taurocholate (ST) as carrier materials via oral delivery. Based on the numerous advantages of oral administration, such as cost-effectiveness, flexible and accommodated dosing regimen, and improved compliance for patients, the ST-P123-MMs system would be evaluated as oral delivery vehicle of BC. In this study, X-ray powder diffractometer analysis confirmed the phase change of BC after being incorporated in mixed micelles. The release study in simulated gastric fluid/simulated intestinal fluid exhibited that BC-loaded ST-P123-MMs presented a sustained drug release behavior. Compared with coumarin-6 solution, higher cellar uptake efficiency was achieved for coumarin-6 loaded ST-P123-MMs towards Caco-2 cell lines. The in situ perfusion test in rat indicated that the absorption of BC-loaded ST-P123-MMs in intestinal tract was stronger than BC solution. After oral administration, the Cmax and AUC of BC-loaded ST-P123-MMs were 1.77 times and 1.54 times as high as those of BC suspension in rat, respectively. Promisingly, the formulated BC exhibited a prolonged circulation time with the oral bioavailability increased to 1.54-fold compared with the control group. These results all suggested that P123 and ST mixed micelles could serve as a promising approach to oral administration of BC.
More Related Videos
08:55Testing the In Vitro and In Vivo Efficiency of mRNA-Lipid Nanoparticles Formulated by Microfluidic Mixing
Published on: January 20, 2023
08:44Preparation, Administration, and Assessment of In Vivo Tissue-Specific Cellular Uptake of Fluorescent Dye-Labeled Liposomes
Published on: July 30, 2020
Related Concept Videos
Modified-Release Drug Delivery Systems: Bioavailability
Methods for Studying Drug Absorption: In vitro
The diffusion cell method uses a two-compartment cell, including a donor compartment with the drug solution, which simulates the environment where the drug is applied, and a receptor compartment with a buffer solution, which simulates the environment...
Bioavailability Enhancement: Drug Permeability Enhancement
Methods for Studying Drug Absorption: In situ
The Doluisio method involves perfusing a prepared segment of a rat's small intestine with a solution of radiolabeled drug and a non-absorbable marker. This helps to differentiate between absorbed and non-absorbed drug concentrations. The intestinal segment is connected at both ends using tubing and syringes,...