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New Biomaterial Mimics Mechanical Properties of Human Tissue

June 6th, 2011 Scott Jung Nanomedicine

Nanoengineers at the University of California-San Diego have developed a new type of biomaterial that closely mimics the mechanical properties of human tissue. The material, which is about the thickness of a human hair, exhibits a negative Poisson’s ratio, meaning it doesn’t wrinkle when stretched, which makes it an ideal tissue patch for damaged heart walls, blood vessels, and skin. The secret behind this new material is the shape that is formed when the material is layered. While most engineered biomaterials are layered in scaffolds that are shaped like circular or square holes, the UCSD material takes on a new shapes, called a “reentrant honeycomb” and “cut missing rib. The shape of the scaffold is what gives the material its unusual properties.

Just as significant as the novel material itself is the manufacturing process used to create the material. The process is a biofabrication technique that uses light, precisely controlled mirrors and a computer projection system. Patterns are projected on a solution of new cells and polymers to fabricate well-defined patterns for three-dimensional scaffolds. The technique could be applied to other materials as well, for example, developing new materials for spacecraft parts.

Article from UCSD: Nanoengineers Invent New Biomaterial That More Closely Mimics Human Tissue…

Full Paper: Three-Dimensional Polymer Constructs Exhibiting a Tunable Negative Poisson’s Ratio …

Scott Jung

Scott Jung (@scottjung) is a Silicon Valley-based medical and health technology reporter and advocate, with a focus on wearables, telemedicine, and health technology in emerging countries. He has represented Medgadget at CES and Digital Health Summit, TEDMED, Stanford Medicine X, and SXSW. Always on the lookout for innovative medical technology worldwide, Scott has been invited to visit Colombia, Poland, and many other countries around the world to share how medtech is enriching the lives of its people. Scott holds a B.S. degree in Biomedical Engineering from the University of Southern California and an M.S. degree in Medical Product Development Management from San José State University. Scott is always looking for the next big thing in medical technology and digital health. Interested in helping him transform lives? Get in touch with him at http://scottju.ng

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