Related Experiment Video
Updated: Aug 15, 2026

Green Synthesis, Characterization, Encapsulation, and Measurement of the Release Potential of Novel Alkali Lignin Micro-/Submicron Particles
Published on: March 1, 2024
Chitosan-modified liposomes for improved oral delivery of dihydromyricetin: synergistic stabilization, pH-responsive
Hui Teng1, Minyi Yan1, Chong Chen1
1College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Engineering Technology Research Center of Prefabricated Seafood Processing and Quality Control, Zhanjiang 524088, China.
Abstract:
In this study, chitosan-modified dihydromyricetin liposomes (CHI-DMY-Lips) were developed via electrostatic adsorption to overcome the low bioavailability of dihydromyricetin (DMY). Employing conventional DMY liposomes (DMY-Lips) as controls, a comprehensive assessment was conducted on the physicochemical properties, activity preservation, in vitro release kinetics, as well as the structural stability and bioaccessibility during simulated gastrointestinal (GI) digestion of the delivery system. CHI-DMY-Lips exhibited a positive surface charge with larger size, more uniform distribution, and higher encapsulation efficiency (54.00% compared to 41.01% in DMY-Lips). The encapsulation by liposomes preserved the antioxidant activity of DMY, whereas CHI further augmented its activity through synergistic effects. CHI-DMY-Lips presented enhanced structural and electrostatic stability during storage and superior in vitro sustained-release performance (especially at pH 7.4). Besides, CHI-DMY-Lips retained structural integrity throughout GI digestion and preserved its effective concentration and activity, resulting in a bioaccessibility approximately threefold that of free DMY (25.97% vs. 9.73%).
Related Concept Videos
Bioavailability Enhancement: Drug Stability Enhancement and GI Retention
Bioavailability Enhancement: Drug Permeability Enhancement
Bioavailability Enhancement: Drug Solubility Enhancement
Oral Drug Delivery Systems: Delayed-Release Systems
Site-Targeted Drug Delivery Systems: Polymeric Carriers
Modified-Release Drug Delivery Systems: Bioavailability

