Definition of Nano

what are Nano technology ?

its applications?and Definition of Nano?

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  • 阿一
    Lv 7
    1 decade ago
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    Definition of Nano

    Nano- is the SI prefix meaning 10-9.

    What is Nanotechnology?

    Nanotechnology refers broadly to a field of applied science and technology whose unifying theme is the control of matter on the atomic and molecular scale, generally 100 nanometers or smaller, and the fabrication of devices with critical dimensions that lie within that size range.Current Applications

    The small size of nanoparticles endows them with properties that can be very useful in oncology (the branch of medicine that studies tumors (cancer) and seeks to understand their development, diagnosis, treatment, and prevention), particularly in imaging.Although there has been much hype about the potential applications ofnanotechnology, most current commercialized applications are limited tothe use of "first generation" passive nanomaterials. These include titanium dioxide nanoparticles in sunscreen, cosmetics and some food products; silver nanoparticles in food packaging, clothing, disinfectants and household appliances; zinc oxide nanoparticles in sunscreens and cosmetics, surface coatings, paints and outdoor furniture varnishes; and cerium oxide nanoparticles as a fuel catalyst. The Woodrow Wilson Center for International Scholars' Project on Emerging Nanotechnologies hosts an online inventory of consumer products which now contain nanomaterials.

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