Nanotechnolosgy-A Small Way to Do Big Things
Transcript of Nanotechnolosgy-A Small Way to Do Big Things
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Its the field of applied science whose
theme is the control of matter on an
atomic and moleculer scale. Nanotechnology is the manipulation of
matter at the nanometer scale to create
novel structures, devices and systems.
Introduction to Nanotechnology
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How Small is a nm?
One nanometer (nm) is one billionth of ameter.
One human hair (cross section) is about100,000 nonometers.
Larger then nanoscale is the microscale &smaller than that is the atomic scale.
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The next Big Thing is very,very,verysmall!
Nanotechnology is an enabling technology that will
change the nature of almost every human made
object in the next century.
This means anything manufactured will be
impacted by nanotechnology and it is happeningmore quickly than most people might think..!!
Desktop Computer Nano computers
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Come back toreality
Stand up really tall, peer back into history, and imagine howthings seemed from the Intuitive Linear View
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1885:1885:No such thing as automobiles or
airplanes.
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1926:1926: No such thing astelevision or cable.
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1957:1957:
No such thing as
communications
satellites or the
Berlin Wall.
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1967:1967:No such thing as
desktop computers
or cell phones.
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1986:1986:No such thing as theWorld Wide Web.
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Graphic Rendition of a Desktop NanofactoryCourtesy of John Burch, Lizard Fire Studios
2005:2005: No such thing asmolecular manufacturing.
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Nano-breeze-air-purifier
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Present Technologies.
Medicine:- Nano Robots perform cell surgery.
Computer Science:- Mtube, 3.34x3.34x0.78inches and weight 5.3 ounces only.
Electronics:- Micro Bots.
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Is nanotechnology bad or good?
Nanotechnology offers great potential forbenefit to humankind, and also brings severe
dangers. While it is appropriate to examinecarefully the risks and possible toxicity ofnanoparticles and other products ofnanoscale technology, the greatest hazards
are posed by malicious or unwise use ofmolecular manufacturing.
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Dual-Use Technology
As a general-purpose technology, it eill be dual-use, means it will have many commercial uses andit also will have many military usesmaking farmore powerful weapons and tools of surveillance.Thus it represents not only wonderful benefits forhumanity, but also grave risks.
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What could Nanofactory make?
Lifesaving medical robots and untraceable weapons ofmass destruction.
Networked computers for everyone in the world andnetworked cameras so governments can watch ourevery move.
Trillions of dollars of abundance and vicious scrambleto own everything.
Rapid invention of wondrous products and weaponsdevelopment fast enough to destabilize any arms race.
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Terrorism-A threatTerrorism-A threat
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SurveillanceSurveillance
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Disadvantages
Global monetary crisis, oil becomes worthless& diamonds becomes worthless.
Atomic weapons more destructive andaccessible increases causes of death.
It is so minute that its existence in the hand ismuch unnoticed.
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Possibilities to overcome.
The medical advantages are change of bodyappearance, stop aging process, imortality, painlesschildbirth and universal immunity like AIDS,flu andend of sickness.
The social advantage include reproducing extinctanimals & plants, safe & space travel, highereducation, molecular food synthesis, to mention afew.
The industrial advantages are automatic pollutioncleanup, expanding computer technology by makingit faster and smaller in size increasing employement.
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Future Scope.
Future computers will use atoms instead of chips formemory.
It can take Artificial Intelligence to new heights. Itcan compeletely dh world around us by creatingsmart devices that may also rival human brains.
A nano robotics cruising the bloodstream of acancer patient pinpointing the nucleus of the tumour& applying rediations therapy directly to the cancersource & nowhere else in the body.
This technology is capable of curing cancer on thebasis of an out-patient office visit and nanotech isclose to realizing that in the near future.
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Conclusion
Nanotechnology is predicated to be
developed by 2020 but much depends on our
commitment to its research.
While some advances are made through
unpredicated accidents or a flash of insight,
others require more work.
A lot depends on when we start.
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Submitted To:Dr. Neeraj Bhargava..HOD, CSDepartment
Submitted By:Neha Agarwal..MCA(LE)