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Heart Valves

Heart Valves

The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...

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Related Experiment Video

Updated: Feb 20, 2026

Combining 3D-Printing and Electrospinning to Manufacture Biomimetic Heart Valve Leaflets

Combining 3D-Printing and Electrospinning to Manufacture Biomimetic Heart Valve Leaflets

Published on: March 23, 2022

Knitting for heart valve tissue engineering.

Albert Liberski¹, Nadia Ayad², Dorota Wojciechowska³

¹Sidra Medical and Research Center, P.O. Box 26999, Doha, Qatar.

Global Cardiology Science & Practice

|October 19, 2017

Summary

This summary is machine-generated.

Knitting technology can create heart valve (HV) scaffolds mimicking natural structure for tissue engineering (TE). This approach supports oriented cell growth and extracellular matrix deposition, crucial for functional tissue regeneration.

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Area of Science:

Biomaterials Science
Tissue Engineering
Textile Engineering

Background:

Heart valve tissue engineering (TE) seeks functional scaffolds that replicate native valve structure.
Knitting technology offers precise control over scaffold architecture, potentially mimicking the heart valve's anisotropic and layered design.
Current limitations include a knowledge gap between textile engineering capabilities and tissue engineering requirements for heart valve scaffolds.

Purpose of the Study:

To review the potential of knitting technology for creating heart valve (HV) scaffolds.
To bridge the knowledge gap between textile and tissue engineering for HV TE.
To facilitate communication and collaboration between these fields.

Main Methods:

Review of knitting technology principles and applications in tissue engineering.
Analysis of heart valve structural and mechanical properties relevant to scaffold design.
Exploration of yarn-based scaffold fabrication for anisotropic tissue regeneration.

Main Results:

Knitting enables the fabrication of complex, anisotropic scaffolds that can mimic the 3-layered architecture of heart valve leaflets.
Yarn orientation in knitted scaffolds can guide cell growth and extracellular matrix deposition.
The technology offers a promising route for developing functional heart valve tissue engineered constructs.

Conclusions:

Knitting is a viable technology for producing heart valve (HV) scaffolds with native-like anisotropic properties.
Successful implementation requires interdisciplinary understanding between textile and tissue engineers.
This approach holds significant potential for advancing heart valve tissue engineering (TE).