Vinay Verma presntaion on Nanotech


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Presentaton on Nanotech


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Presentation by :Vinay Verma M.C.A 5th Sem. [3rd yr.] Roll no: 41 D.C.S.A, P.U.,CHD. small is BIG NANOTECHNOLOGY

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A basic definition: Nanotechnology is the engineering of functional systems at the molecular scale. This covers both current work and concepts that are more advanced. In its original sense, 'nanotechnology' refers to the projected ability to construct items from the bottom up, using techniques and tools being developed today to make complete, high performance products. What is Nanotechnology?

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or Field of applied science whose theme is the control of matter on an atomic and molecular scale. What is Nanotechnology?

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One nanometer (nm) is one billionth, or 10-9 of a meter. A single human hair is about 80,000 nm wide. Larger than Nanoscale is the microscale, and smaller than is the atomic scale. How small is the Nano Scale?

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The theoretical possibilities of nanotechnology were first envisioned in 1959 by Richard Feynman, who won a Nobal Prize for "fundamental work in quantum electrode. The word nanotechnology was popularized in the 1980’s by K. Eric Drexler. The US National Nanotechnology Initiative was created to fund nanotechnology research. History...

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4th Generation much like a mammalian cell with hierarchical systems within systems, are expected to be developed. 3rd Generation feature nanosystems with thousands of interacting components 2nd Generation introduces active nanostructures for multitasking 1st Generation materials designed to perform one task Generations of Nanotechnology?

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Carbon nanotubes are molecular-scale tubes of graphitic carbon with outstanding properties. Length-to-diameter ratio greater than 1,000,000 Carbon Nanotubes... The animation of rotating Carbon nanotube showing its 3D structure

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Nanonets- networks of carbon nanotubes enable numerous basic electronic functions at low cost. The durable nature of nanonets make them suitable to portable devices, like: -electronic paper -flexible touch screens -solar cells -sensors Carbon Nanotubes... The animation of rotating Carbon nanotube showing its 3D structure

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Nanotechnology was seen to have the second greatest impact, trailing only genetic engineering. Nanotechnology - The control of extremely small, sub-atomic matter : 22% Impact on Everyday Life

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30% 22% 7% 15% 12% 14% Impact on Everyday Life

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Life Science Nanomedicine Nanoshalls Nanogels NanoRobotics Cancer treatment Application areas

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Nanorobotics is the technology of creating machines or robots at or close to the microscopic scale of nanometers (10-9 meters). Nano Robots

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Cancer cells can be killed without the painfull side effects of chemotherapy. Scientist may now be able to destroy tumors without killing healthy cells at the same time. Cancer Treatment

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Conductive-most conductors are metat; not transparent Flexible Lightweight Transparent-thin films are ~ insulators Advantages

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"Nanoparticles can enter the body and its vital organs, including the brain, much more easily than can large particles." "Some nanoparticles are extremely combustible...and can spontaneously burst into flames." Disadvantages

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