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Electroconductive Graphene-Containing Polymeric Patch: A Promising Platform for Future Cardiac Repair
Alireza Talebi1, Sheyda Labbaf1, Fathallah Karimzadeh1
1Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran.
ACS Biomaterials Science & Engineering
|January 19, 2021
Summary
This study presents a novel polycaprolactone/chitosan/polyrrole/graphene cardiopatch that mimics native heart tissue properties. This engineered cardiac patch offers mechanical support and electrical conductivity for myocardial infarction treatment.
Area of Science:
- Biomaterials Science
- Cardiovascular Research
- Tissue Engineering
Background:
- Myocardial infarction (MI) leads to nonconductive scar tissue, impairing cardiac function.
- Existing electroconductive biomaterials face challenges in matching native myocardium's mechanical and electrical properties.
- Developing effective cardiac patches requires materials with precise mechanical strength and conductivity.
Purpose of the Study:
- To develop and optimize a novel hydrophilic fibrous scaffold for cardiac tissue engineering.
- To create a cardiopatch with mechanical and electrical properties similar to native myocardium.
- To evaluate the potential of the cardiopatch as a drug delivery system.
Main Methods:
- Fabrication of a polycaprolactone/chitosan/polypyrrole (PCP) fibrous scaffold.
- Incorporation of functionalized graphene to enhance conductivity and mechanical strength, creating PCPG patches.
- Optimization of PCPG patches for mechanical and conductive properties.
- Assessment of heparin drug loading and bovine serum albumin (BSA) protein adsorption.
Main Results:
- PCPG patches exhibited mechanical and conductive properties closely resembling native myocardium.
- The engineered patches demonstrated significant potential as a drug delivery system.
- Heparin loading and BSA adsorption were evaluated, indicating good biocompatibility and drug retention.
Conclusions:
- The optimized PCPG cardiopatch shows great promise for treating myocardial infarction.
- The patch can provide mechanical support and restore electromechanical coupling.
- This biomaterial could help maintain normal cardiac function post-MI.
