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American scientists have developed a solar sterilizer
Engineers and physicists from the U.S. rice University (Houston) made a sterilizer, which takes the energy of sunlight. To get maximum performance, experts have used gold nanoparticles with a wide range of light absorption.
Gold nanoparticles is 140 nm hollow spheres, the wall thickness of which is close to ten nanometers. These dimensions cannot be seen using an optical microscope due to the fact that the length of visible light waves in a couple of times above it. But these nanoparticles are quite effective at absorbing sunlight because of their ability to work as an antenna, which in order to make the signal do not need to have a value comparable to the wavelength.
The effectiveness of a new sterilizer podtverdili tests that use bacteria Geоbacillus steаrothermophilus. These organisms are often used for checks of sterilizers. The inventors claim that their device can be used in areas where there is no access to electricity, and where there is no possibility to use usual electric autoclaves.
Source: /users/413
Gold nanoparticles is 140 nm hollow spheres, the wall thickness of which is close to ten nanometers. These dimensions cannot be seen using an optical microscope due to the fact that the length of visible light waves in a couple of times above it. But these nanoparticles are quite effective at absorbing sunlight because of their ability to work as an antenna, which in order to make the signal do not need to have a value comparable to the wavelength.
The effectiveness of a new sterilizer podtverdili tests that use bacteria Geоbacillus steаrothermophilus. These organisms are often used for checks of sterilizers. The inventors claim that their device can be used in areas where there is no access to electricity, and where there is no possibility to use usual electric autoclaves.
Source: /users/413