NANOTECHNOLOGY Fred Myrtle ITMG 100 09. Nanotechnology - Key Points What is Nanotechnology? ...
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Transcript of NANOTECHNOLOGY Fred Myrtle ITMG 100 09. Nanotechnology - Key Points What is Nanotechnology? ...
NANOTECHNOLOGYFred Myrtle
ITMG 100 09
Nanotechnology - Key Points What is Nanotechnology?
Perspective Originated
Types of Nanotechnology Ethical Decisions Conclusion
What is Nanotechnology?
Nanotechnology is the creating of machines that operate on a molecular scale.
Imagaes found at http://www.crnano.org/whatis.htm
Getting Some Perspective
A nanometer is one billionth of a meter.
A nanometer is the size of about four atoms.
Getting Some Perspective (Tent).
A clearer understanding of what nanotechnology is:
http://science.howstuffworks.com/nanotechnology.htm#
The Beginning
The idea of nanotechnology actually began in 1959 when Richard Feynman gave a lecture called "There's Plenty of Room at the Bottom" acknowledging the fact that devices would become smaller and more powerful over time.
The Beginning
Then in 1986, K. Eric Drexler wrote "Engines of Creation" and introduced the term nanotechnology.
Types of Nanotechnology
Four kinds of Nanotechnology Carbon Nanotubes Optical or Particle Wave
Based Nanotechnology Crystalsand
Nanotechnology DNA Computing
Carbon Nanotubes
A carbon nanotube is a nano-size cylinder of carbon atoms. Imagine a sheet of carbon atoms, which would look like a sheet of hexagons
Carbon Nanotubes
The nanotube can also be used to hold other substances because of carbon’s non-interactive behavior.
Carbon Nanotubes
Some practical uses for Carbon Nanotubes are building designs for cars and airplanes and medical treatment
http://www.tekno.dk/uploadimages/articlespic_1219.jpg
Optical or Particle Wave Based Nanotechnology
Optical or particle wave based nanotechnology is important because it studies nanotechnology and elements as both particles and waves.
Optical or Particle Wave Based Nanotechnology
Nanotechnology is being used to see if it is possible to transfer electrons from one computer to another without any wires or other connections.
Crystalsand Nanotechnology
Crystalsand nanotechnology is the research to make crystalline structures on the molecular level.
Crystalsand Nanotechnology
The structures are attached in a lattice structure and as a result are incredibly strong. Also, it has been shown that it can be used for bearings and joints of machines making them run smoother and last longer
DNA Computing
DNA computing allows a person to “understand, map, manipulate, replicate and alter strands of DNA within molecules” (Linstedt)
Types of Nanotechnology
Carbon Nanotubes Optical or Particle
Wave Based
Nanotechnology
Crystalsand
Nanotechnology
DNA Computing
Advantages Strong material that
provides superior
strength over steel
and can be a medical
Provides a wireless
power source and an
immediate global
communication device
Provides strong
material that can
length the life of
machine parts and
make them more
efficient
Alters DNA to cure
diseases and prevent
them too, also to gain
strength and
intelligence
Disadvantages n/a Takes a long time to
develop due to super-
conductivity
n/a Can cause serious
damage to body and
is an ethical question
whether it playing
God.
Ethical Decisions
The most immediate challenge in nanotechnology is that we need to learn more about materials and their properties at the nano-scale
Ethical Decisions
Some doctors worry that the nano-particles are so small, that they could easily cross the blood-brain barrier, a membrane that protects the brain from harmful chemicals in the bloodstream(Bonsor).
Ethical Decisions
If nanotechnology in medicine makes it possible for us to enhance ourselves physically, is that ethical?
Ethical Decision
In theory, medical nanotechnology could make us smarter, stronger and give us other abilities ranging from rapid healing to night vision (Bonsor).
Conclusion
In Conclusion, nanotechnology is coming, whether we like it or not. All of these technologies can greatly benefit mankind but if abused it could negatively affect society
Works Citied
Bonsor, Kevin, and Jonathan Strickland. "How Nanotechnology Works." How Stuff Works. 12Nov. 20
<http://science.howstuffworks.com/nanotechnology.htm>. Linstedt, Dan E. "Nanotechnology is the next big thing." Beye
Network. 5 May 2005. 11 Nov. 2 <http://www.b-eye-network.com/view/836>.
"Nanotechnology Basics: For Students and Other Learners."
Center for ResponsibleNanotechnology. 12 Nov. 2008 <http://www.crnano.org/basics.htm>.