Gold and silver make nano-robots, and scientists develop new anti-cancer strategies

Guide: The nano-cancer robot has been innovative in three aspects, effectively improving the depth and precision of treatment
gold and silver can not only make beautiful jewelry, but also transform into nano-robot, become anti-cancer drugsRecently, li Nan, a professor at Tianjin University's School of Pharmacy,, proposed a new strategy for nano-cancer, through innovative design, gold and silver as a nano-cancer drug carrier, but also play a therapeutic role in the development of a more efficient, more accurate, more intelligent next generation of nano-cancer robotsThe results were published in Biomaterialsmalignant tumor severs human health and is life-threateningthe current human method of fighting malignant tumors is relatively single, although chemotherapy and radiotherapy technology is effective, but at the same time will bring huge side effects, mainly because they kill tumor cells at the same time also kill white blood cells, how to accurately identify and kill cancer cells is a major problem in the medical communitynano-cancer robot is one direction of effort at presentin recent years, nano-cancer has made great progress, but due to the heterogeneity of tumor, the current nano-drug in the tumor penetration depth, penetration rate is not high, it is urgent to develop more intelligent, more powerful nano-robots to achieve tumor deep treatment, precision treatmenta new generation of nano-cancer robot developed by Li Nan's team, the gold-silver hollow nano-triangle and sulfur dioxide pre-drug are cleverly integrated into one, and an effective photothermal-gas-combined tumor depth treatment nanosystem is constructedthe nano-cancer robot has been innovated in three ways, effectively improving the depth and accuracy of treatment" first, in shape, triangular nanorobots improve penetrationTriangular carrier is more easily able to enter cells than ordinary spherical carrier, and in the experiment, the fluorescence intensity is probably 1.3 times that of ordinary sphericalSecond, let the nano-cancer robot itself become a cure for cancer, the team selected the nano-scale very active gold and silver as nano-robot preparation material, in near-infrared light, gold-silver hollow nanotriangle can produce a large amount of heat, kill tumor cells, to achieve photothermal treatmentAt the same time, the use of cancer cell microenvironment characteristics, but also can intelligently unlock the nano-robot equipped with anti-cancer drugs, better kill cancer cells, do not harm normal cellsThe team used acidic conditions in tumor cells to induce sulfur dioxide pre-drugs to release sulfur dioxide gas on demand, which can spread inside the tumor cell for the treatment of deep tumors Li Nan, , said that photothermal-gas combination therapy can simultaneously activate the apoptosis pathway and accelerate the apoptosis of tumor cells The results show that the nanosystem has good therapeutic effect on deep tumors both inside and outside the body So far they have successfully used nanobots to kill tumor cells in experimental mice paper link: Responsibility Editor: Kerry statement: This article only represents the author's own views, does not represent the position of the drug network, welcome to exchange supplements in the message area; Related: China's , anti-cancer , nanobots 00
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