Related Experiment Video
Updated: Jun 20, 2025

Alternating Magnetic Field-Responsive Hybrid Gelatin Microgels for Controlled Drug Release
Published on: February 13, 2016
In Situ Gelation Strategy for Efficient Drug Delivery in a Gastrointestinal System
Yucui Shen1, Ye Feng2, Shengjie Liang3
1Endoscopy Center, Shanghai Fourth People's Hospital, Tongji University, School of Medicine, Shanghai 200434, China.
This study introduces a novel boric hydroxyl-modified mesoporous magnesium hydroxide (Mg(OH)2) drug carrier. This system forms an in situ gelation network, enhancing gastrointestinal drug retention and efficiency.
Area of Science:
- Biomaterials Science
- Drug Delivery Systems
- Gastrointestinal Therapeutics
Background:
- Drug delivery systems (DDS) for the gastrointestinal system aim to improve drug efficacy and reduce side effects.
- Rapid gastrointestinal transit and muscle contractions accelerate the elimination of conventional drug carriers.
Purpose of the Study:
- To develop a microenvironment-responsive DDS for prolonged drug retention in the gastrointestinal tract.
- To overcome the limitations of rapid elimination of drug carriers in the digestive system.
Main Methods:
- Preparation of boric hydroxyl-modified mesoporous magnesium hydroxide (Mg(OH)2) drug carriers.
- Evaluation of the DDS's biocompatibility and gelation properties in response to the gastrointestinal microenvironment.
Main Results:
- The developed DDS exhibits high biocompatibility.
- The system effectively converts polyhydric alcohol molecules into a gelation form in situ.
- The formed gelation network demonstrates high viscosity, preventing premature washout by digestive fluids.
Conclusions:
- The boric hydroxyl-modified Mg(OH)2 DDS offers a promising strategy for enhanced gastrointestinal drug retention.
- This novel DDS design can significantly improve drug delivery efficiency by prolonging residence time.
More Related Videos
12:22Synthesis of Thermogelling PolyN-isopropylacrylamide-graft-chondroitin Sulfate Composites with Alginate Microparticles for Tissue Engineering
Published on: October 26, 2016
10:28An Injectable and Drug-loaded Supramolecular Hydrogel for Local Catheter Injection into the Pig Heart
Published on: June 7, 2015
Related Concept Videos
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,...
Drug Delivery: Enteral Route
Drug Delivery: Overview
Enteral delivery involves administering drugs directly through swallowing, sublingual placement, or buccal application. Orally administered drugs predominantly navigate the...
Routes of Drug Administration: Enteral
Enteral administration involves drug administration via the mouth in two ways: orally or sublingually.
Unlike sublingually drugs, drugs that are taken orally pass through the gastrointestinal (GI) tract and get metabolized by the liver. Once metabolized, the drug is absorbed into the systemic circulation, reaching different body parts via the bloodstream. However, while passing through the stomach,...
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...
Factors Affecting Dissolution: Drug Permeability, Stability and Stereochemistry