失乐园在线观看 I 日韩精品久久一区二区三区 I 国产福利影视 I 17婷婷久久www I 91青青草视频 I 国产激情一区 I sm成人免费看www软件 I 懂色av网站 I 国模私拍视频一区 I 91视频完整版 I 国产 中文 字幕 日韩 在线 I 欧美tv xtime I 国产偷在线 I 97超频在线观看 I 国产馆在线播放 I 成人av在线网站 I 99热香蕉 I 伊人色综合久久天天人手人婷

Targeted therapy of tumor by using a magnetized spiral micro-nano robot. Magnetron spiral micro-nano robot is a micro-nano motor driven by external magnetic field, with good biocompatibility, efficient motion ability and controllable navigation performance, it can deliver payloads such as drugs or genes to tumor sites, enhance therapeutic effect and reduce side effects. A magnetically controlled spiral-shaped nanorobot based on ferrite / polylactate-polyethylene glycol nanocomposite enables targeted therapy for breast cancer cells by surface-modifying folic acid and loading doxorubicin. Intravascular hemostasis is achieved using micro-nanorobots with ultrasonic propulsion. Ultrasonic propulsion micro-nano robot is a kind of micro-nano motor driven by ultrasonic wave, which has the advantages of no battery, no chemical reaction, no magnetic field, can move autonomously in the blood vessels, and modify thrombin or other hemostatic agents on the surface to achieve rapid hemostasis to the bleeding site. Ultrasonic propulsion micro-nanorobot based on magnesium / ferrite / polystyrene sulfate nanocomposite to achieve effective hemostasis of arterial and venous bleeding in mice and pigs by surface-modified thrombin.