Post on 02-Dec-2014
description
NanoTechnology
Small Ideas Big Impacts
First Industrial Revolution@1810Steel Making
Introduction Of
Steam Engine
Second Industrial Revolution@1890
IntroductionOf
Electricity
Electrical Devices
Electricity
But What is NextTechnological
Revolution
? ??By
B.Sandeep
NAN OTECHNOLOGY
What is
Nano Particle?
“A Nano particle is the particle which is designed and characterized under
Nano scale.”1 nm = 0.000000001 m
i.e.10^-9 meters
1cm of thread
Nano Scale
What is
Nano Technology?
Historyof
Nano Technology?
Scale 100 nm
Graphene
Nano Facture
Nano facture is nothing but the Manufacture of “Nano Particles”
But how Can one achieve this
???
It is easy to constructHuge Buildings
But Nano Particles???
Two approaches can be taken when making something at
the Nano scale.These are known as the
“top-down” approach and the “bottom-up” approach.
Top Down Approach :1. The top-down approach is analogous to making
a stone statue. You take a bulk piece of material and modify it, by
carving or cutting in the case of stone, until you have made the shape you want.
The process involves material wastage and is limited by the resolution of the tools you can use, restricting the smallest sizes of the structures made by these techniques.
Examples of this kind of approach include the various types of lithographic techniques (such as photo-, ion beam-, electron- or X-ray-lithography) cutting, etching and grinding.
Top Down Approach :
The second approach is known as the bottom-up approach.
This can be thought of as the same approach one would take to build a house one takes lots of building blocks and puts them together to produce the final bigger structure.
There is less wastage with this technique, and strong covalent bonds will hold the constituent parts together.
A good example of this kind of approach is found in nature; all cells use enzymes to produce DNA by taking the component molecules and binding them together to make the final structure.
Bottom Up Approach :
Nano MaterialsAnd
Nano Devices
Nano Materials
Materials referred to as “Nano materials" generally fall into
two categories: fullerenes, and inorganic Nano particles.
The fullerenes are a class of (allotropes of carbon) which conceptually are (Graphene)sheets rolled into tubes or spheres. These include the (carbon Nano tube) which are of interest both because of their mechanical strength and also because of their electrical properties.
Nano Devices are made of metals, semiconductors, or oxides are of particular
interest for their mechanical, electrical, magnetic, optical, chemical and other
properties. Nano Devices have been used as “quantum dot” and as chemical “catalyst”
Nano Devices
Applications
Nano Technology
Small Idea’s
Big Impact’s
Drug Delivery
A Nano particle is 10 timesSmaller than the RBC
Therefore they can be easily transported through blood.
Nano Particle
Inside a Blood Vessel
Cancer Treatment
Tumors
Tumors
Water ProofJackets
Have you ever wonderedHow Water proof jackets can
Resist water???
Nano Filters
Into Space
Conclusion
Future of Medicine
Future of Computers
Thank YouFor
Watching