The future revolution By P.Ajay & M.SANTOSH

contents  What is nano-technology  Origin  Production  Tools of nano-technology  Applications  Disadvantages  Conclusion

Atoms……………Atoms……….Atoms……… They are messed up every where Even in our food we eat. can’t we make use of them ? yes we can,by using nano -technology

What is nano technology Nanotechnology is the engineering of functional systems at the molecular scale. If a definition of technology is "the application of science and scientific knowledge for industrial or commercial objectives," then in its most simplistic form, nanotechnology might be specifically defined as "the application of science and scientific knowledge, at the nanoscale, for industrial or commercial objectives”

NANO-SCALE OR NANO-METER

ORIGIN nano tech was theoritically envisioned as early as 1959 by the renowned physicist Richard Feynman. Richard Feynman who gave a lecture titled “There‘s plenty of Room at the bottom” and it outlined the theoretical concept of manipulating atoms to build molecules Dr Feynman explained that the principles of physics don’t deny the possibility of manipulating things atom by atom

In 1986, Eric Drexler published an influential book, Engines of Creation, in which he described some of benifits And risks in such technology In 1987, Dr. DONALD CRAM was awarded the Nobel prize for chemistry for molecular assembly techniques in ‘Host Guest chemistry’, a key breakthrough in understanding the properties and assembly of individualmolecules.

PRODUCTION MOLECULAR MANUFACTURING MECHANO CHEMISTRY ORDINARY CHEMISTRY H2+O2=H 2O CONTROLLED TEMPERATURE IN VACCUME TIME TAKING This is ordinary chemistry: an atom moving from one molecule to another when they come close enough to each other, and when the movement is energetically favorable.

With 15,342 atoms, this parallel-shaft speed reducer gear is one of the largest nanomechanical devices ever modeled in atomic detail.

TOOLS OF NANO TECHNOLOGY nano-factory Do you imagine manufacturing products cheap and faster as copying files in yur computers? This is possible by a simple device called a personal nanofactory that may sit on your countertop or desktop. Packed with miniature chemical processors, computing, and roboticspersonal nanofactory it will produce a wide-range of items quickly, cleanly, and inexpensively, building products directly from blueprints.

WHAT’S THE USE OF COMBINING MOLECULES? If we re-arrange atoms in coal we can make diamond If we re-arrange atoms in sand (and add a few other trace elements) we can make computer chips If we re-arrange atoms in dirt water And air we can make potatoes

APPLICATIONS: Medical field Imagine a medical device that travels through the human body to seek out and destroy small clusters of cancerous cells before they can spread

. Instead of manipulating surgical instruments, surgeons use their thumbs and fingers to move joystick handles on a control console to maneuver two robot arms containing miniature instruments that are inserted into ports in the patient. Robotic surgical systems

The combination of remarkable mechanical properties and unique electronic properties of carbon nanotubes (CNTs) offers significant potential for revolutionary applications in electronics devices, computing and data storage technology, sensors, detectors, imaging,nanolithography

a

DISADVANTAGES A nanotechnology-based manufacturing system, on the other hand, could build weapons, grey goo, or anything else it was programmed to produce.. Misuse of the technology by inhumane governments, terrorists, criminals, and irresponsible users could produce even worse problems—

Grey goo : A small nanomachine capable of replication could in theory copy itself too many times. If it were capable of surviving outdoors, and of using biomass as raw material, it could severely damage the environment Very small products could get lost and cause nano- litter, or be used to spy undetectably on people

conclusion We can nevertheless to say our coming age will be a nanotechnology. Nanotechnology offers the ability to build large numbers of products that are incredibly powerful by today's standards. This possibility creates both opportunity and risk. Adding programmed positional control existing methods gives us greater control over the material world and improved our standards of living.

THAN Q UIRIES?

Queries?