Materials used in the healthcare and medical setting must often carry the title "medical grade." But what defines a material as "medical grade"? Biocompatibility refers to "the ability of a material to perform with an appropriate host response in a specific application" (William's definition), and can be measured in different ways, depending on the context of the medical device. Because they come in contact with the human body, materials are tested for biocompatibility and safety in order to receive the "medical grade" designation.Read More
Auxetic materials are characterized by becoming thicker perpendicular to the applied force when stretched. This is caused by the way their particular internal structure is designed to deform and exhibit a negative Poisson's ratio. Scientists hope to exploit this effect to create new products, including body armor, joint replacements, stretchable electronics, electronic skin and more.Read More
Simply put, a composite is a material made from two or more materials that have different properties. When combined together, the chemical and physical properties of the different materials work together to form a unique material or composite. Combining materials is nothing new. The Egyptians were doing it millenniums ago, combining mud and straw to make buildings, boats, and pottery. The 20th century saw great leaps in composites, largely spurred on by the second world war. In recent decades, however, composite materials have aided the production of a new gold standard in healthcare.