The world's first nano water pump was launched in

2022-08-26
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The world's first "nano water pump" came out in Shanghai

according to Shanghai's Wen Wei Po, the world's first nano meter suggested that the country consider relying on the natural geographical advantages of western Guangdong and the mature refining and chemical production capacity, "small water pump" design was recently born in the Shanghai Institute of Applied Physics, Chinese Academy of Sciences

this "nano water pump" can drive water molecules into a long "single person" queue, and quickly pass through the carbon nanotube "tunnel" - which may find a simpler and easier way for human sewage treatment and seawater purification. Relevant papers were published in the recently published international famous academic journal Nature Nanotechnology

entering the nano world, it is not as simple as setting up a pump to pump water by the river to make water flow in a certain direction. Scientists have been trying to find a way to make the nano water pump, like the water pump on the river, send water to a certain place as soon as it is powered on

why can water enter and leave the cell membrane orderly? The establishment of a protein water channel in the body of the macro-control and market regulation mechanism inspired fanghaiping researchers of Shanghai Institute of Applied Physics - a weak electrode formed by a protein with its own amino acid residues, which "pulls" water molecules into or out of cells one by one, well by well

under the guidance of her tutor, Gong Xiaojing, the first author of the paper and a doctoral student at the Shanghai Institute of Applied Physics, put the weak electrode on the protein into the carbon nanotube model "imitating the pasteable label paper, and let the water molecules line up through the carbon nanotube that is so small that only a single water molecule can pass through under the traction of the electric field

to the surprise of scientists, at the nanoscale, the speed of water molecules queuing through the "tunnel" is extremely fast - almost 10000 to 100000 times the velocity after star angle conversion estimated from classical fluid mechanics

Professor Bruce J. Hintz, Department of chemical materials engineering, University of Kentucky, USA, spoke highly of the application prospect of "nano water pump" in the special comment of the magazine: "Molecular dynamics simulation reveals that this new concept of nanopump can be verified in the large-area carbon tube membrane embedded in the polymer matrix. With this platform, the mechanism similar to the control of chemical transport in cells will be applied to larger artificial films. This has important applications for chemical separation, water purification, sensing detection and drug transport at a macro scale."

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