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June 25 2022

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Self-assembling artificial blood vessels created

A material and a protein together to easily create real artificial blood vessels.

Gianluca Ricciodi Gianluca Riccio
in Medicine
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March 4 2020
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A research team led by groups from the University of Nottingham and Queen Mary University of London has created an intelligent material that transforms into new blood vessels.

Made with graphene oxide and a protein, the material is 3D printed. It assembles naturally into tubular shapes that look like artificial blood vessels.

In the image above: close-up of a tubular structure made by simultaneous printing and self-assembly between graphene oxide and a protein. Images of the University of Nottingham

"This work offers biofabrication opportunities by enabling 3D bioprinting and self-assembly even at the nanoscale", said Alvaro Mata of the University of Nottingham, one of the leaders of the study.

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"We are biofabricating micro-scale capillary-like fluidic structures that are compatible with cells, exhibit physiologically relevant properties, and have the ability to resist blood flow."

Artificial blood vessels
In the image, the cross section of a biofabricated tubular structure. It is composed of endothelial cells (marked green) that are lit and embedded in the tube wall.

When graphene oxide and a protein are combined in a controlled way, the two tend to self-assemble into these tubular shapes. The researchers were able to create artificial vessels that showed chemical and physical properties in all respects similar to natural blood vessels.

“This research introduces a new method of integrating proteins with graphene oxide by self-assembly. This is done in a way that can be easily integrated with additive manufacturing. The goal is to manufacture biofluidic devices that allow us to replicate key parts of human tissues and organs in the laboratory ", added Dr. Yuanhao Wu, another study manager.

The discovery is of absolute importance. It can lead to a better mechanism for creating (and replacing) even important blood vessels. In combination with i new robots traveling inside the vessels can do a lot.

The study has been published in the journal Nature Communications

Street: University of Nottingham

tags: biofabrication3d Press
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