Introduction of nanotechnology with various example and interesting phenomenon
Published on: Mar 3, 2016
Transcripts - Nanotechnology Introduction
Created by Fajar Budi Laksono
파자 부디 락서너
The tensile strength of spider silk
is greater than the same
weight of steel and has much
Its microstructure is under investigation for
potential applications in industry, including
bullet-proof vests and artificial tendons.
Self-cleaning and superhydrophobic
Various iridescent colors by thin-film interference: similar, analogous
structures made of keratin are found in iridescent bird plumage.
Gecko toes have special adaptations that allow them to adhere to most
surfaces without the use of liquids or surface tension.
The setae of a typical mature 70 g (2.5 oz) gecko would be capable of supporting a
weight of 133 kg (293 lb)
High compressive strength of about 170 MPa
Lightweight yet strong and hard, and serve multiple functions.
Bigger Effect !!!
Small ??? Big ???
Make the thing smaller ??? 10-9 ???
National Nanotechnology Initiative,
which defines nanotechnology as the manipulation
of matter with at least one dimension sized from
1 to 100 nanometers
Nano : Meter
Ping pong ball
Why usual size and nano size has
quantum size effect
Quantum Size Effect
This effect does not come into play by going from macro to micro dimensions.
However, quantum effects can become significant when the nanometer
size range is reached, typically at distances of 100 nanometers or less.
Additionally, a number of physical (mechanical, electrical, optical, etc.)
properties change when compared to macroscopic systems.
One example is the increase in surface area to volume ratio altering
mechanical, thermal and catalytic properties of materials.
Photocatalyst, anti-bacterial, super-hydrophobicity,
self-cleaning properties, etc
What can NANOTECHNOLOGY produce??
1 mm2 can endure 6,422 Kg-force
Strongest and Stiffest materials yet discovered
Allotropes of with
for its very
100 times stronger than steel
pure in the form of a
, one atom thick.
Lightest solid material
in the world High thermal insulation
The lowest-density silica
nanofoam weighs 1,000 g/m3
And the others……
How can NANOTECHNOLOGY product
These seek to create smaller devices by using larger ones to direct their
High Energy Milling
Focused ion beams
These seek to arrange smaller components
into more complex assemblies.
Dip pen nanolithography
Trousers and socks have been infused with
nanotechnology so that they will last longer
and keep people cool in the summer.
Bandages are being infused with silver
nanoparticles to heal cuts faster.
Super Hydrophobic T-Shirt
Smoke Degrader lamp with Photocatalyst principle
And many others !!!
Great power can be come from the small things!!!