Nanotechnology

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By: kririka (139 month(s) ago)

i liked the presentation. i was expecting the same, really systematic presentation

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Presented by : V.STALIN & M.VENKATESH KUMAR EEE Department, AVS Engineering College, Salem. NANOTECHNOLOGY

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HISTORY The idea of nanotechnology was born in December 29, 1959 when physicist Richard Feynman gave a lecture exploring the idea of building things at the atomic and molecular scale. Richard Feynman.

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Because it can bring revolution in the current industrialization and manufacturing processes.

What is Nanotechnology? : 

What is Nanotechnology? Simply stated, it is the world of the very small things, such as molecules and atoms. nano = dwarf Greek English

WHAT IS NANOTECHNOLOGY ? : 

WHAT IS NANOTECHNOLOGY ? “Nanotechnology is the art and science of manipulating matter at the nanoscale”

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A nanometer is… one billionth of a meter Human Hair: Approx. 1x105 nm DNA Sample: Approx. 2 nm

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UNIT COPARISON

HOW SMALL IS NANOTECHNOLOGY ? : 

HOW SMALL IS NANOTECHNOLOGY ?

SCANNING TUNNELING MICROSCOPE : 

SCANNING TUNNELING MICROSCOPE This microscope evolved to allow the manipulation of individual atoms and molecules in the field of Nano technology.

NEED FOR NANOTECHNOLOGY ? : 

NEED FOR NANOTECHNOLOGY ? Allows the placement of small structures placed with precision,simplicity and low cost Leads to economic growth Enhances national security Improves the quality of life Leads to create jobs

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With NT, we can create unique materials and products which are: Stronger Lighter Cheaper Durable Precise

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Computers can become a billion times faster and a million times smaller Automatic Pollution Cleanup Manufacturing at almost no cost

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End of Illnesses (i.e. cancer, heart disease) Universal Immunity (i.e. aids, flu) Body Sculpting (i.e. change your appearance)

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APPLICATIONS OF NANOTECHNOLOGY

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CNT’s are the alloptropes of carbon with a cylindrical nanostructure. These have been constructed with length to diameter ratio upto 28,000,000:1.

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APPLICATIONS:- To make bullet proof clothes. In electric circuits. In solar cells. In paper batteries. In NRAM (nano RAM).

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Nano Transistors Nano Diodes OLED (Organic Light Emitting Diode)

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Plasma Displays Quantum Computers

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Nano Filters Nano Particles

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Nano Tubes Aerogel

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Fuel Cells Solar Cells

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Batteries Energy Capture and Storage

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Targeted Drug Delivery Artificial Retina Tissue Regeneration

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Nothing is perfect in this World

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Loss of jobs (in manufacturing, farming, etc) Carbon Nanotubes could cause infection of lungs Oil & Diamonds could become worthless Atomic weapons could be more accessible and destructive DISADVANTAGES

Examples of Future Use of NT : 

Examples of Future Use of NT Electronic Paper Nokia Morph Contact Lens

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National Science and Technology Council (USA) claims that: “Nanotechnology is an enabling technology that will change the nature of almost every human-made object in the next century.”

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Thank You Only a fool knows everything. A wise man knows how little he knows.

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