Nanotechnology

Nanotechnology

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  Nanotechnology Presented By Asif Mahmud B.Scin Mechacnical Engineering Dhaka University of Engineering & Technology, Gazipur-1700, Dhaka, Bangladesh.
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  Abstract Nanotechnology draws itsname from the prefix "nano". A nanometer is one-billionth of a meter. Nanotechnology refers to manipulating the structure of matter on a length scale of some small number of nanometers. Richard Feynman was the first scientist to suggest (in 1959) that devices and materials could someday be fabricated to atomic specifications. "The principles of physics, as far as I can see, do not speak against the possibility of maneuvering things atom by atom." This concept was expanded and popularized in a 1986 book Engines of Creation by K Eric Drexler, who applied the term nanotechnology to Feynman's vision. From the mid-1980s on progress in nanometer-scale science and technology exploded, and the term nanotechnology was appropriated by researchers, media, businesses, and funding agencies to refer to any technology.
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  What is Nanotechnology?  Nanotechnology is science, engineering, and technology conducted at the nano-scale, which is about 1 to 100 nanometers.  Nanoscience and nanotechnology are the study and application of extremely small things and can be used across all the other science fields, such as chemistry, biology, physics, materials science, and engineering. Features There are many different views of precisely what is included in nanotechnology. In general , however, most agree that three things are important: 1. Small size, measured in 100s of nanometers or less. 2. Unique properties because of the small size. 3. Control the structure and composition on the nm scale in order to control the properties.
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  Fields of Nanotechnology Medicine Energy Fabric Technology ConsumerGoods
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  Medicine Researchers are developing customizednanoparticles the size of molecules that can deliver drugs directly to diseased cells such as cancer cells in our body. When it's perfected, this method should greatly reduce the damage treatment such as chemotherapy does to a patient's healthy cells.
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  Energy  Nanotechnology basedsolar panels are more efficient.  Thin-film solar electric panels.  Nanotechnology is improving the efficiency of fuel production.  Nanotechnology is already being used in numerous new kinds of batteries.  Carbon nanotubes are used in windmill.
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  Fabric  Composite fabric Silver nanoparticles  Nano pores  Nanoparticles that provide a "lotus plant" effect
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  Technology  Applied to…. Computing,communications and other electronics applications.  To provide…. Faster, smaller and more portable systems that can manage and store larger and larger amounts of information.
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  Consumer Goods Materials getmore……  Stronger  Lighter  More durable  More reactive  More sievelike.
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  Conclusion As a conclusionto this topic I would like to say that Nanotechnology is a brand new technology that has just began. It is a revolutionary science that will change all what we knew before. The future that we were watching just in science fiction movies will in the near future be real. Nanotechnology covers a lot of domains today and will cover a lot more in the near future. It is infinitely big and will make a lot of inventions come true like teleportation for example which scientists are working on today. THANK YOU