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Related Experiment Video

Updated: Oct 21, 2025

Microfluidic Bioprinting for Engineering Vascularized Tissues and Organoids

Microfluidic Bioprinting for Engineering Vascularized Tissues and Organoids

Published on: August 11, 2017

Bioengineering silk into blood vessels.

Yuen Ting Lam^1,2, Richard P Tan^1,2, Praveesuda L Michael^1,2

¹School of Medical Science, Faculty of Health and Medicine, The University of Sydney, Sydney, Australia.

Biochemical Society Transactions

|September 8, 2021

Summary

This summary is machine-generated.

Silk fibroin shows promise as a biomaterial for small diameter vascular grafts. Advances in silk processing enable the creation of grafts mimicking native arteries, improving clinical outcomes for cardiovascular disease bypass surgery.

Keywords:

bioengineering silk fibroin vascular grafts

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Last Updated: Oct 21, 2025

Microfluidic Bioprinting for Engineering Vascularized Tissues and Organoids

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Published on: August 11, 2017

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Microfluidic Dry-spinning and Characterization of Regenerated Silk Fibroin Fibers

Microfluidic Dry-spinning and Characterization of Regenerated Silk Fibroin Fibers

Published on: September 4, 2017

Area of Science:

Biomaterials Science
Regenerative Medicine
Cardiovascular Engineering

Background:

Cardiovascular disease necessitates small diameter vascular grafts (<6 mm) for bypass surgery.
Current synthetic grafts (polyethylene terephthalate, expanded polytetrafluoroethylene) exhibit poor biocompatibility and high failure rates in small diameter applications due to hydrophobicity and inelasticity.
There is a critical need for novel biomaterials that combine favorable mechanical properties with enhanced biocompatibility for vascular grafts.

Purpose of the Study:

To review advances in silk fibroin as a promising biomaterial for small diameter vascular grafts.
To highlight the progress in silk manufacturing enabling tailored mechanical properties and biological responses.
To summarize silk purification, processing, and functionalization techniques for robust vascular graft development.

Main Methods:

Review of scientific literature on silk fibroin for vascular applications.
Analysis of silk manufacturing advancements and their impact on material properties.
Examination of silk-based graft performance in mimicking native artery mechanics and promoting endothelialization and vascular remodeling.

Main Results:

Silk fibroin can be manufactured to match the mechanical properties of native arteries.
Silk-based grafts facilitate rapid recovery of the endothelial cell layer.
Silk fibroin directs positive vascular remodeling by regulating local inflammatory responses.

Conclusions:

Advances in silk fibroin purification, processing, and functionalization have led to the development of robust vascular grafts.
Silk-based vascular grafts demonstrate significant promise for clinical application in bypass surgery for small diameter vessels.
Silk fibroin offers a superior alternative to current synthetic grafts, addressing limitations in biocompatibility and clinical outcomes.