Mucoadhesive Therapeutic Patch with Magnetic Nanoparticles for GI Tract
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Solution Overview
Problem
Existing drug delivery methods for the gastrointestinal tract are inefficient as they do not directly deliver drugs to diseased sites, leading to limited drug delivery efficiency and potential side effects due to systemic drug absorption through blood vessels.
Innovation Solution
A therapeutic patch for the gastrointestinal tract incorporating a mucoadhesive material with magnetic nanoparticles and a drug, where the mucoadhesive material is a polymer-catechol conjugate and the magnetic nanoparticles generate heat under external stimuli to enhance drug release and hyperthermia at the target site.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If drugs are delivered through blood vessels using conventional methods, then drugs can be distributed systemically, but drug delivery efficiency to diseased sites is limited and side effects occur
Solution Approach 1:
The invention extracts the drug delivery function from the conventional vascular route and redirects it to the gastrointestinal tract mucosa. The therapeutic patch is applied directly to the GI tract, enabling local drug release at the diseased site without requiring systemic circulation, thus improving delivery efficiency and reducing side effects.
Solution Approach 2:
The mucoadhesive polymer acts as an intermediary between the drug and the GI tract mucosa. It enables direct adhesion and localized drug release at the target site, serving as a mediator that bypasses the need for vascular absorption and systemic distribution.
2Reliability
If a therapeutic patch is applied to the gastrointestinal tract, then targeted drug delivery and hyperthermia are achieved, but manufacturing complexity increases
Solution Approach 1:
The therapeutic patch is constructed as a composite material system combining mucoadhesive polymer, magnetic nanoparticles, and drug. This composite structure integrates multiple functions (adhesion, targeted delivery, hyperthermia) into a single manufacturable unit, simplifying the overall device while achieving complex therapeutic outcomes.
Solution Approach 2:
The therapeutic patch is designed as a multi-functional device that simultaneously provides mucoadhesion for retention, magnetic nanoparticle-mediated targeting and hyperthermia, and drug delivery. This consolidation of multiple functions into a single device reduces manufacturing complexity compared to separate systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The patch achieves effective mucosal adhesion and targeted drug delivery, enhancing treatment efficacy by actively releasing the drug and providing hyperthermia at the lesion site, while forming a hemostatic film for bleeding sites.
Implementation Method 1
magnetic nanoparticles which generate heat under external stimuli to enhance drug release and hyperthermia at the target site
Implementation Method 2
a mucoadhesive material along with magnetic nanoparticles and a drug to be delivered to a living body, which are supported on the mucoadhesive material
Data Source
AI summary
Disclosed is a therapeutic patch for the gastrointestinal tract including a mucoadhesive material along with magnetic nanoparticles and a drug to be delivered to a living body, which are supported on the mucoadhesive material. A method of manufacturing the therapeutic patch for the gastrointestinal tract is also provided and includes preparing a mucoadhesive polymer, preparing a catechol precursor, mixing the mucoadhesive polymer and the catechol precursor, freeze-drying a mixture in the mixing step, mixing a powder resulting from the freeze-drying step with magnetic nanoparticles and a drug, and subjecting the resultant mixture to molding using a mold and then freeze-drying.