Transcript Slide 1 - p6gesci

Done by:
Ang Kai Yan (1)
Jasmine Heng (4)
Chia Zi Xuan (13)
Lim Shengyang (17)
Wayne Zhang (24)
What is Nanotechnology?
Nanotechnology is the study of manipulating matter
on an atomic and molecular scale. Nanotechnology
deals with developing materials, devices, or other
structures with at least one dimension sized from 1 to
100 nanometers. Nanotechnology is considered a key
technology for the future.
Development in Nanotechnology
In 2010 IBM used a silicon tip measuring only a few
nanometers at its apex (tip) to chisel away material
from a substrate (the under layer) to create a
complete nanoscale 3D relief map of the world oneone-thousandth (0.000001x) the size of a grain of salt
(approx. 1mm) — in 2 minutes and 23 seconds. This
activity demonstrated a powerful patterning
methodology for generating nanoscale patterns and
structures as small as 15 nanometers at greatly
reduced cost and complexity, opening up new
prospects for fields such as electronics,
optoelectronics (comb. electronics and light), and
medicine.
Nanoscale
Nanoscale items are items that are
measurable using nanometers.
Nanomaterials are in nanoscale, with
at least one dimension that is only 1
to 100 nanometers.
Nanometer
Nanometer (nm)
System: Metric
Length: 1billionth of a meter
(0.000000001m), 0.001 micrometer (mm),
0.0000001cm
How does this benefit us?
With nanotechnology, we can now find ways to save lives
by finding new cures to different diseases. We can
make drug delivery vehicles to deliver the exact
amount of drug required to a specific organ so as to
reduce side-effects of the drug. It can also be used to
engineer tissues and regrow bones.
It also allows us to make new materials with the
properties we need, allowing us to manufacture new
things as substitutes of natural items.
Nanotechnology allows us to filter water and make it
cleaner for us to use in our daily lives.
They may be used to clean up nuclear waste, reduce
energy consumption, improving manufacturing
methods, or increase energy production.
They are placed in foods so that it makes the food more
healthy and nutritious. (Biotechnology: GM Foods)
Impacts on the environment and
ecosystem
Positive
1. Potential nuclear waste cleaning agent.
2. Find medicine and pharmaceuticals to cure
diseases in organisms.
3. Create new materials
Negative
1. Potential health hazards if nanomaterials are
exposed to organisms.
2. There is a large amount of nanopollution
(waste product) which can be dangerous for its
size because It can easily penetrate any animal
and plant cell causing unknown effects.