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Transcript of Nanotechnology
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
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
Strong as diamonds
Possibly litter environment
Present disposal problem in the future
" 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
Capabilities of terrorists go hand in hand with military advances
Nanotech may create new, unimaginable forms of torture
Atomic weapons now more accessible
Possibility of nanotech being used to develop chemical weapons
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
Small enough to plant into our bodies
What is Nanotechnology?
Deals with devies of less than 100 nanometers
Manipulate matter at the atomic and molecular scale
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
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
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)
Much research is being done
Apart from threats, great potential.
Protect from diseases, insects, etc
Flat flexible pannel displays
Molecule sized switches and other devices
Magnetoresistive Random Access Memory (MRAM)
Optoelectronics materials and devices
Nanotechnology can address the shortage of fossil fuels by producing them from normal raw materials economically.
Increasing the mileage of engines.
Nanomolecules can be released to the atmosphere and the water to attract certain pollutive agents and disble them chemically.
Cleaner air and water
Stronger, more resistant, cheaper, lighter, thick, stiff, heavy...
Ease space travels.
Can be used in many things such as sports( balls)
Early diagnosis of infectious disease.)The nanoparticles contain nitric oxide gas, which is known to kill bacteria.)
Nanorobots could repair specific diseased cells, in a similar way to antibodies in our natural way of repairing ourselves.
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.
Sensors to detect deterioration
New types of iron and steel
New types of glass
Reduction of costs
Nanotechnology could safe water, land and labor.
We could become more independent from climate changes.
Be more efficient.
Molecular nanotechnology will have many impacts on the field of medicine in general.
Better research and developments
More accessible to underdeveloped countries