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Ultra-thin silicone rubber for the development of a class of biological tissue at Harvard University
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According to the relevant information reported recently, Harvard University, a research and development team composed of polymer physicists and chemists developed a super
Soft silicone.
This new silica gel material has adjustable softness, and can be matched with various biological tissues for biomedical research and engineering.
Came a new opportunity. Medical implants are usually mixed with oil and other liquids with a long, silicone polymer to form a wet, soft colloid, in order to
To imitate the softness of the human body. Although in recent years the medical implant has been greatly improved, but there is still liquid leakage, etc.
Risk, this will bring some potential pain and danger to the patient.
This material has become the latest issue of the Materials Advanced Thomas, the main author of the paper, said Dr. E. Kodger
"Because of the reasons for the production process, the traditional elastic body is generally more rigid, which is because of their internal structure of the chain
Very long, and wrapped in a knot. In order to develop a soft elastomer, the research team needs to develop a new type of polymerization
Matter, to solve the problem from the source. The new type of, called bottlebrushes, is a new type of polymer, which is often used in the market.
See the linear silicone polymer developed."
By this way, softness of the elastomer can be through a number of adjustment of the crosslinked polymer to precise control, can be copied
A lot of biological tissue, whether it is still a relatively hard cell tissue elements. "If there is no cross-linking, bottlebrush molecules are like
Can freely move the viscous liquid." Cai Li-Heng, the main author of the paper, said, "bottlebrush can be cross-linked.
Molecules connected to the liquid to solidify, increase the hardness of the material." In addition to adjusting the softness, the R & D team also found a way to
Independent control of the liquid reaction of the elastomer.
These characteristics make this material not only for the medical industry, such as implants, and can be used in cosmetics and other products.
This paper is from Shenzhen,, id=504?
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