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Nanotechnology

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Meaghan McLoughlin

on 1 December 2013

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Transcript of Nanotechnology

Nanotechnology
Benefits
Many of the actual problems in our world could be improved using Nanotechnology.

It can be applied in almost every category and aspect of human lives.

Potential Dangers of Nanotechnology
http://nextbigfuture.com/2007/11/economist-magazine-wants-more-spent-to.html#links
Health Risks
Nanoparticles have been shown to be absorbed in the livers of research animals
Can be taken up by cells
Can get inside living cells
Can be difficult to detect
Certain nanoparticles can cause damage to lung tissue
http://www.gizmag.com/are-nanoparticles-dangerous/13594/
http://drrajivdesaimd.com/wp-content/uploads/2010/12/nanotoxicology.jp
Environment Risks
Strong as diamonds

Possibly litter environment

Present disposal problem in the future

Called: Nanopollution
" The mysterious nature of materials manufactured at the nanoscale- just a few atoms thick, or 10,000 times thinner than a human hair- has led some to fear the technology's toxic power" -David Levitan
http://www.nanowerk.com/spotlight/spotid=1781.php
Terrorism
Capabilities of terrorists go hand in hand with military advances

Nanotech may create new, unimaginable forms of torture

Atomic weapons now more accessible

More destructive

Possibility of nanotech being used to develop chemical weapons
Privacy
Society
Potential abuses of nanotech
Need strong system to regulate and monitor nanotech developments
Claims that nanotech will not be evenly distributed
Possible replacement of natural products
Small and compact products

Easier to invade privacy

More mobile

Small enough to plant into our bodies
Meaghan McLoughlin
Alannah Bowllan
Alex Flick
Manuel Segura

What is Nanotechnology?
Deals with devies of less than 100 nanometers
Manipulate matter at the atomic and molecular scale

Applied in:
Applied in:
Environment
Electronics
Biomedicine
Magnetics
Energy
Optics
Information Technology
History
1959
Richard Feynman
1980's
Eric Drexler
An American Physicist
"Theres Plenty of Room at the Bottom"
Provided inspiration for nanotechnology decades later

Most interested in "scanning electron microscopes" which could see things smaller than is possible.
Millipede memory by IBM
Nanoscale machines that arrange attoms "the way we want."
""Swallowing the doctor" which meant to build a small surgical robot to swallow
Challenges
1. To construct a tiny mirror.
Achieved by William McLellan November 1960.

2. To shrink letters down to 1/25,000 linear scale. (fit entire encyclopedia Britannica on the head of a pin)
2. To shrink letters down to 1/25,000 linear scale. (fit entire Encyclopedia Britannica on the head of a pin) Accomplished by Tom Newman in 1985. (first paragrph in "A Tale of Two Cities"
"Swallowing the doctor" which meant to build a small surgical robot to swallow
Challanges
1. To costruct a tiny mirror
Achieved by William McLellan November 1960
2. To shrink letters down to 1/25,000 linear scale. (Encyclopedia Britannica on the head of a pin). Achieved by Tom Newman in 1985. (first paragrph in "A Tale of Two Cities."
Popularized the concept of nanotechnology.

His book, "Engines of Creation: The Coming Era of Nanotechnology" proposed the idea of a nanoscale machine that could build a copy of itself and of other complex items.
Published the term "Grey Goo" which illistruates the end of the world scenerio due to Nanotechnology.
Out of control, self-replicating robots that consume all matter on Earth.
Founded the Foresight Institute in 1986. It is a non profit organization for promoting transforming technologies.
Future of Nanotechnology
Eric Drexler( introductor of the word Nanotechnology) predicted two apocapyptic scenarios:
"The grey goo scenario"(carbon)
" The green goo scenario"( organic)
Positive side
Much research is being done
Apart from threats, great potential.
Grow faster
Change flavours
Enrich foods
Protect from diseases, insects, etc
avoid polution
Food
Flat flexible pannel displays
Faster
Less power
California Molecular
Electronics Corp.
Molecule sized switches and other devices
Everspin Technologies
Magnetoresistive Random Access Memory (MRAM)
IBM
Nanophotonics
Kodak
Optoelectronics materials and devices


Electronics
Nanotechnology can address the shortage of fossil fuels by producing them from normal raw materials economically.
Increasing the mileage of engines.
Fuel
Nanomolecules can be released to the atmosphere and the water to attract certain pollutive agents and disble them chemically.
Cleaner air and water
New materials
Stronger, more resistant, cheaper, lighter, thick, stiff, heavy...
Ease space travels.
Can be used in many things such as sports( balls)
Industry
Early diagnosis of infectious disease.)The nanoparticles contain nitric oxide gas, which is known to kill bacteria.)
Medicine
Nanorobots could repair specific diseased cells, in a similar way to antibodies in our natural way of repairing ourselves.
Mit
Very effficient
Proven in rats.
Trying to do so in humans
Cancer detection and trearment
Nanotechnology could be the solution for many life or death problems and could ease our daily lives.
Could be used in almost any field.

Benefits
Agriculture
Construction sector
Medicine sector
Environmental deterioration
Sensors to detect deterioration
New types of iron and steel
New types of glass
Reduction of costs
Construction
Nanotechnology could safe water, land and labor.
We could become more independent from climate changes.
Be more efficient.
Agriculture
Molecular nanotechnology will have many impacts on the field of medicine in general.
Medicine
Medicine
Facts
Cheaper materials
Better research and developments
More accessible to underdeveloped countries
Full transcript