NANOTECHNOLOGY – THE
FUTURE TECHNOLOGY
Done by: Liau Yuan Wei (3A317)
NANOTECHNOLOGY?
Nano = Very tiny
 Study of the controlling of matter on an atomic
scale
 1 to 100 nanometer!!!

NANOMATERIALS?

A study of materials with morphological features
on the nanoscale
NANOPARTICLE?
Particles having one or more dimensions of the
order of 100nm or less
 Building blocks of nanotechnology
 Bridge between bulk materials and atomic or
molecular structures
 They form nanomaterials

HOW TO CREATE THEM?
High Gravity Controlled Precipitation (HGCP)
 Developed based on fundamental mass transfer
principles
 Micro mixing of the reaction phases is achieved
in microseconds
 Reaction phases brought together under a high
gravity environment.
HGCP
ADVANTAGES
Scalability: Cost effective scale up for large scale
production of nanomaterials
 Control: Good control over quality, particle size,
distribution and particle shape
 Versatility: Can create any type of nanomaterials

ONE REAL-LIFE EXAMPLE

NMT announced today that it has signed an
exclusive licensing agreement with Winsunny
Pharma for the use of HGCP Technology to
manufacture a generic version of a world-wide
hyperlipidemia-controlling drug in China with a
potential market size of over US$900 million.
VS
NANOGOLD
An example of a nanoparticle
PROPERTIES
Gold
A shiny, yellow metal
 Does not tarnish,
 Face centred cubic
structure
 Non-magnetic
 Melts at 1336 K.

Nanogold
Can turns red, blue,
yellow and other
colours.
 A very good catalyst
 A semiconductor
 Melting point
decreases
dramatically as the
size decreases

HOW?
It is possible to tailor the properties of their
nanoparticles assemblies by varying the size and
composition of the particles.
 By heating these nanoparticle arrays at different
rates, it introduces instability into the structure
of nanogold. (Form nanowires)
 Scientists in Japan discovered 10 years ago that
gold displays fantastic catalytic abilities when it
is shrunk to 3 to 5 nm in size.

USES
Staining of Glass
 The Romans found that they could get several
colours out of the same gold particles simply by
adding water and diluting the potion.
 Rediscovered by Michael Faraday in the 1850s
USES
Saving the Environment
 Nanogold technologies are showing great promise
in providing solutions to a number of
environmentally important issues.
 E.g: greener production methods of chemical
feed-stocks, countering pollution and water
purification.
USES
Catalysts
 Can prevent the release of high amounts of
mercury into the atmosphere.
 Constructing cost effective and efficient fuel cells,
a key 'clean-energy' technology of the future.
USES
Tumors
 Using nanogold for tumour targeting technologies to
deliver drugs directly into cancerous tumours.
 Gold nanoparticles are introduced into the veins and
guided by a spectroscope to locate problem tumours;
they are then injected into the tumour along with an
antibody to stop the tumour’s ability to grow
 Can be used to do a quick test for cancerous cells
 Also can be used in X-Rays to provide a better vision of
the human body
USES
Advanced Technologies
 The key driver of future electronics solutions.
 Shown to offer functional benefits for visual
display technologies such as touch sensitive
screens.
 Potential usage for advanced data storage
technologies such as advanced flash memory
devices.
USES
Cancers
 Scientists are able to do these:
 Using gold nanoparticles to locate and kill cancer cells
inside the body without harming healthy cells
 Collecting and characterizing tumour cells in a
person’s bloodstream with microfluidic devices
 Determining which gases exhaled in a person’s breath
indicate the presence of breast cancer
 Detecting ovarian cancer from patterns of metabolites
found in a drop of blood
REFERENCES
http://www.malvern.com/labeng/industry/nanotec
hnology/nanoparticles_definition.htm
 http://www.nanomt.com.sg/tech.asp
 http://www.nanotechnow.com/news.cgi?story_id=37700
 http://www.sciencedaily.com/releases/2004/04/040
428062059.htm
 http://www.scitopics.com/Nanogold_chemistry.ht
ml

REFERENCES
http://www.mi2g.com/cgi/mi2g/frameset.php?page
id=http%3A//www.mi2g.com/cgi/mi2g/press/1102
10.php
 http://www.nanowerk.com/news/newsid=15631.p
hp
 http://mayoresearch.mayo.edu/dev_lab/nanogold.c
fm
