Japan has developed a new self - repairing material
Xinhua news agency, Japanese researchers reported in the latest issue of the British journal Nature newsletter that they have developed a new kind of new gelatinous material that can be naturally repaired even if they are damaged, using a simple chemical reaction. This gelatinous material can be freely adsorbed or separated, even if it is cut, it can repair itself.
the research team led by Professor Harada Aki of Osaka University in Japan made the new material by using cyclodextrin and ferrocene two. The cyclodextrin looks like a narrowed keyhole, and two ferrocene is the same as the key that can be inserted. In chemical reactions, the two can be combined in seconds to form a gelatinous substance.
researchers cut the gelatinous material with a knife and put it together for hours to 24 hours, as if the key is plugged into the keyhole again, and the two gels are rejoined together. The cutting marks have disappeared, and the original shape has been restored. If the oxidant is applied to the cut section, the two parts of the incision will not be combined again, but if the reductant is applied again, the new material will not only restore the adsorbability, but also the self repair ability will be improved.
if the oxidation-reduction reaction of the two ferrocene structure is changed, it can also make the gel become a liquid. The research team is studying if the liquid can be injected into the body through a small tube, and whether the blood vessels supplied to the tumor will again become gelatinous, blocking the blood vessels and breaking the nutritional supply of the tumor to treat cancer.
researchers say this discovery will help to develop new materials, such as plastics, which are longer life expectancy and are expected to be applied in the medical field. (Lan Jianzhong)