Cornell University researchers have developed a new lightweight and stretchable material with the consistency of memory foam that has potential for use in prosthetic body parts, artificial organs and soft robotics. The foam is unique because it can be formed and has connected pores that allow fluids to be pumped through it.
The polymer foam starts as a liquid that can be poured into a mold to create shapes, and because of the pathways for fluids, when air or liquid is pumped through it, the material moves and can change its length by 300 percent.
While applications for use inside the body require federal approval and testing, Cornell researchers are close to making prosthetic body parts with the so-called “elastomer foam.”
“We are currently pretty far along for making a prosthetic hand this way,” said Rob Shepherd, assistant professor of mechanical and aerospace engineering, and senior author of a paper appearing online and in an upcoming issue of the journal Advanced Materials. Benjamin Mac Murray, a graduate student in Shepherd’s lab, is the paper’s first author.
In the paper, the researchers demonstrated a pump they made into a heart, mimicking both shape and function.
Read more: Cornell researchers create artificial foam heart
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