More than 20 years ago, scientists used nanoparticles to create a variety of random aggregate structures such as 2D films and 3D crystals, but they have not been able to roll up a film or fold into a complex three-dimensional structure. Recently, researchers at the University of Chicago, the University of Missouri, and the US Department of Energy's Argonne National Laboratory found that this can be done in a simple way. This has led scientists to design new films with adjustable electrical, magnetic and mechanical properties that are used in a wide range of electronic devices. At the same time, this research is also important for understanding biological systems. According to a report by the Physicist Organization Network on August 3 (Beijing time), applying some organic molecules like oil to some gold nanoparticles (only a few thousand gold atoms) will bring the gold particles together. When they float on the water, a film is formed, and after the water evaporates, a small film is left. Lin Xiaomin, a project leader and scientist at the US Department of Energy's Nanomaterials Center, said: "It's like a drumhead. But it's very thin, made up of a single layer of nanoparticles." When the film is placed under the electron beam of a scanning electron microscope, it is bent in the same direction each time, even rolled into a tube. Lin Xiaomin said: "This makes us very curious, why it will bend in one direction." They analyzed the cause of this phenomenon and the answer was related to the organic molecules on the surface of the film. These organic molecules are hydrophobic and will avoid contact with water when floating on the surface of the water, eventually forming a non-uniform distribution above and below the nanoparticle film. When the electron beam illuminates these organic molecules, it creates additional bonds between them and the neighboring molecules, creating an asymmetric pressure that bends the film. Fernando Bryce, a professor of chemical physics at Imperial College London, said: "These results are very attractive and will greatly enhance our ability to create shape-controlled nanostructures." In theory, any nanoparticle film can be folded in this way as long as the surface molecules of the film are asymmetrically distributed. Lin Xiaomin said: "You can use a hydrophobic molecule to make the organic molecules form a non-uniform distribution through surface repelling. You can also use two different molecules. The key is that the molecules must be non-uniformly distributed." The side screen of a big-name mobile phone has made many smart machine enthusiasts rush, and for this 0.1-inch bending, the developers can be described as painstaking. They let the world see that it's not just Tim Cook who can bend, but also the screen of a mobile phone you never thought of. This time, scientists have discovered new discoveries, and the nanoparticle film that has been unable to bend has been unexpectedly curled up. If life always has an unexpected ending, science has never let us down. She is like a beautiful girl carved by Pygmalion, always giving us the biggest surprise in the expectations of the researchers. Linear High Bays,Garage Light Linear Highbay,Led Linear Highbay Light,High Lumen Linear High Bay Light Fuonce Lighting , https://www.fuonce.com