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INTRODUCTION TO NANOTECHNOLOGY. BY LT CDR V PRAVIN. GUIDED BY DR D SAMANTA. NANOTECHNOLOGY. THE REVOLUTION OF ENDLESS POSSIBILITIES. CONTENTS. INTRODUCTION NANOTECHNOLOGY BASICS SALIENT FEATURES WORKING PRINCIPLE APPROACH, CONCEPTS & STRUCTURE APPLICATIONS

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slide1

INTRODUCTION TO NANOTECHNOLOGY

BY

LT CDR V PRAVIN

GUIDED BY

DR D SAMANTA

nanotechnology
NANOTECHNOLOGY

THE REVOLUTION OF ENDLESS POSSIBILITIES

contents
CONTENTS
  • INTRODUCTION
  • NANOTECHNOLOGY BASICS
  • SALIENT FEATURES
  • WORKING PRINCIPLE
  • APPROACH, CONCEPTS & STRUCTURE
  • APPLICATIONS
  • CONCLUSION
feynman
FEYNMAN

There is a plenty of room at the bottom

The principles of physics do not speak against the possibility of maneuvering things atom by atom

so what is it
SO WHAT IS IT?
  • Anything smaller than Molecular technology
  • Size of nanoscale
  • Every atom in the right place
  • Zettatechnology
so what is it1
SO WHAT IS IT?

Nanotechnology is basically mechanisms that have been built by nanoscale components using to place every atom and molecule in a desired place

extending
Extending……
  • MNT Molecular Nano Technology
  • NSE Nano Scale Engineering
  • MMT Molecular Manufacturing

Technology

  • MMS Molecular Machine System
in nutshell
IN NUTSHELL
  • LIFE SCIENCE
  • PHYSICAL SCIENCE
  • MATERIAL SCIENCE
  • INFORMATION SCIENCE
understanding size
UNDERSTANDING SIZE

How big (small) are we talking about?

understanding size2
UNDERSTANDING SIZE
  • 10 centimeters
understanding size3
UNDERSTANDING SIZE
  • 1 centimeter
understanding size4
UNDERSTANDING SIZE
  • 100 micrometers
understanding size5
UNDERSTANDING SIZE
  • 10 micrometers
understanding size6
UNDERSTANDING SIZE
  • 1 micrometer
understanding size7
UNDERSTANDING SIZE
  • 100 nanometers
understanding size8
UNDERSTANDING SIZE
  • 10 nanometers
nanometer nm
NANOMETER………..(nm)

A nanometer is one billionth of a meter (10-9 m). This is roughly ten times the size of an individual atom.

salient features1
SALIENT FEATURES
  • At atomic and molecular scales, in the length scale of approximately 1 - 100 nanometer range
  • Fundamentally new properties and functions because of their nanoscale structure
salient features2
SALIENT FEATURES
  • Ability to control , to see, measure, and manipulate matter on the atomic scale to exploit those properties and functions
  • Ability to integrate those properties and functions into systems spanning from nano- to macro-scopic scales
slide25
WORKING OF

NANOTECHNOLOGY

slide26

How does Nanotechnology work?

1.Atomsare the building blocks for all matter in our universe.

2. Atoms and molecules stick together because they have complementary shapes that lock together, or charges that attract. Just like with magnets, a positively charged atom will stick to a negatively charged atom.

slide27

Every atom has a exhibits different property at various conditions

  • The goal of nanotechnology is to manipulate atoms individually and place them in a pattern to produce a desired structure.
approaches
APPROACHES..
  • Two approaches can be taken when making something at the nano scale:
  • Top-Down approach
  • Bottom-Up approach
top down approach
TOP DOWN APPROACH
  • The top-down approach is analogous to making a stone statue.
  • The process involves wastage.
  • Used in fibres
  • Seldom used in MNT
bottom up approach
BOTTOM UP APPROACH
  • Approach one would take to building a house
  • Less wastage, as strong covalent bonds will hold the constituent parts together.
  • Limited in how big the structures can be made
  • Approach used currently
manipulation
MANIPULATION
  • Atomic Force Microscope (AFM)
  • Scanning Tunneling Microscope (STM)
  • Virtual Surface Profiling Microscope (VSPM)
concepts
CONCEPTS
  • Direct Molecular Assembly (DMA)
  • Indirect Crystalline Assembly (ICA)
  • Massive Parallel Assembly (MPA)
structure
STRUCTURE
  • Nano composites
  • Nano spheres
  • Nano crystals
  • Nano tubes & Quantum dots
obstacles
OBSTACLES
  • Fragile and unstable nature of nanoparticles
  • Fusing together of nano particles when their surfaces touch
  • Loss of special shape and properties
slide36

COMPUTERS

  • Single atom can be in two places, hence 03 atoms can represent all eight nos at a given time.
  • Extrapolation of the above fact .
  • Each logic elements made from a few atoms
  • Mass storage device in size of a sugar cube
computers
COMPUTERS
  • Tiny nano-engineered ferroelectric crystals could realize of creating nonvolatile random access memory (NVRAM).
  • Cool chips
medicine
MEDICINE
  • Fluids of nano particles
  • Slow down ageing process
  • No scar surgeries
  • Artificial limbs
medicine1
MEDICINE
  • Cancer and HIV
  • Nano filters- capable of absorbing viruses
  • Nano catalyst – improves efficiency of a reaction.
applications contd
Applications Contd
  • Agriculture
  • Space
  • Military
  • Telecommunication
applications contd1
Applications Contd..
  • Sports
  • Energy
  • Environment
  • ………..
slide42
FEAR
  • Nuclear and atomic bombs can have different dimensions
  • Cloning and miniaturization
  • Nano medicine- worrying factor!
conclusion
CONCLUSION
  • Improvements and developments in existing products, such as stronger and lighter materials.
  • Potential to initiate completely new products and industries that do not exist today
conclusion1
CONCLUSION

BIG FUTURE FOR THE TINY

TECHNOLOGY

in the end
In the end......
  • As the size decreases...computer will compute faster, materials will be more stronger, medicine will cure more diseases.
  • The technology that works at the nanometer scale of molecules and atom will be a large part of this future.
references
REFERENCES
  • Springer handbook of nanotechnology
  • http://peterindia.net/nanotechnology
  • http://microcosm.web.cern.ch.
  • http://nanotoxicology.ufl.edu
  • http://nanotech-now.com
  • http://nanobot.info
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