Professor Zeng Jie of the China University of Science and Technology team combined gold and copper and invented a pentagonal new type of nanomaterial, gold-copper alloy nanomaterials with high photo-thermal conversion efficiency and good catalytic performance. This new type of material known as "Star of the Nano" can effectively treat mouse breast cancer, which is expected to open up new avenues for cancer treatment. The related results were published online in Nature Newsletter.
According to reports, this gold-copper alloy nanocrystal has strong light absorption and photothermal conversion in the near-infrared region. Using this feature, they injected 30 micrograms of gold-copper alloy nanomaterials into mice with breast cancer and irradiated them with near-infrared laser light at the tumor site for 10 minutes. The nanocrystals can absorb near-infrared light and convert it into heat, resulting in localized High temperatures kill the cancer cells. The experimental results showed that after 10 minutes of irradiation and 4 days of continuous irradiation, tumors in mice disappeared.
Zeng Jie said that the normal body temperature of most mammals, including humans, is between 37-42°C. If it continues to heat for a while, the cancer cells will be burned. In theory, it is feasible to treat human tumors with this method. Moreover, this type of therapy is an ideal therapy because it does not require surgery, does not damage tissues, and has fewer side effects. (Zhao Yongxin, Yang Baoguo)
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