Nanotechnology Papers

  • 5 Things You Didn’t Know: Nanotechnology

    1355 words, 6 pages

    Tiny robots that fight cancer? Shock-resistant and energy-absorbing body armor? Invisible disinfectants? Is this all science fiction or impending reality? The hype surrounding nanotechnology has waned since the early ‘80s when American engineer Dr. K. Eric Drexler brought the concept to the forefront, but what began as a simple topic of conversation at physicists’ cocktail parties is now being realized in a sweeping movement that is going largely unnoticed. Nanotechnology refers to the science and engineering of matter at the atomic and molecular scale, normally in the range of 1 to 100 nan

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    4116 words, 17 pages

    NANOTECHNOLOGIES by WAN FARAH ATHIRAH WAN ROSLI The term "nanotechnology" was popularized by K. Eric Drexler, he was talking about building machines on the scale of molecules, a few nanometers wide smaller than a cell. There is an organization funding nanotechnology (anything smaller than 100 nanometers exhibit novel properties) research named United States National Nanotechnology. In this fast pacing world, nanotechnology is a rapid growing area of commercialization and research especially in the food industry but have we think or find out what are the harms of nan

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    Nanotechnology And Nanomaterials

    1519 words, 7 pages

    Nanomaterials are extremely small. The use and control of this tiny mater is called nanotechnology and the tiny matter is referred to as nanoparticles. Nanoparticles are measured in nanometres(nm) and they can be between 1 - 100 nanometres across. They are very tiny and cannot be seen, even through a microscope. Nanotechnology is the branch of technology dealing with making and the use of nanoparticles. Nanoparticles occur naturally, for example in volcanic ash. Some occur by accident, through combustion of fuels but many are made by design. Nanoparticles of a material show different propert

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    Synthesis And Characterisation Of Silver Nanoparticles Using Uv Vis Spectroscopy And Atomic Force Microscopy

    1492 words, 6 pages

    1. Objectives The objectives of this experiment are to estimate the particle size, study the aggregation effects of yellow colloidal silver (Ag) by UV-vis spectroscopy and atomic force microscope (AFM) and determine the minimum concentration of polyvinylpyrrolidone (PVP) to stabilise the silver nanoparticles. 2. Introduction Colloidal silver can be prepared by the reduction of silver nitrate by sodium borohydride: AgNO3 + NaBH4 Ag + ½ H2 + ½ B2H6 + NaNO3 The particle size of the yellow-coloured colloidal silver can be determined by UV-vis spectroscopy and AFM. The particl

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    Carbon Nanotubes And Bucky Balls

    1725 words, 7 pages

    Carbon nanotubes are a tubed-shaped materials made of carbon, which have diameters that are billionths of a meter, that is equal to about one ten-thousandth of the thickness of a human hair. Carbon nanotubes are fullerenes, or ‘carbon-only’ compounds. Similarly, buckminsterfullerene or ‘bucky balls’ are also fullerenes, however they are molecules, which consist of 60 carbon atoms arranged in a spherical form, a truncated icosahedron. Bucky balls were discovered in 1985 in a joint research project consisting of Sir Harry Kroto, Richard Smalley and Bob Curl. This discovery leads to the winni

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