what is nanotechnology and it's uses in global era?
353890
Molecular nanotechnology ("MNT") is an anticipated manufacturing technology that would allow precise control and positional assembly of molecule-sized building blocks through the use of nano-scale manipulator arms. Molecular nanotechnology is usually considered distinct from the more inclusive term "nanotechnology", which is now used to refer to a wide range of scientific or technological projects that focus on phenomena or properties of the nanometer scale (around 0.1-100nm). Nanotechnology is already a blossoming field, but molecular nanotechnology - the goal of productive, molecular-scale machine systems - is still in the preliminary research stage.\n\nNanotechnology was first introduced in 1959, in a talk by the Nobel Prize-winning physicist Richard Feynman, entitled "There's Plenty of Room at the Bottom". Feynman proposed using a set of conventional-sized robot arms to construct a replica of themselves, but one-tenth the original size, then using that new set of arms to manufacture an even smaller set, and so on, until the molecular scale is reached. If we had many millions or billions of such molecular-scale arms, we could program them to work together to create macro-scale products built from individual molecules - a "bottom-up manufacturing" technique, as opposed to the usual technique of cutting away material until you have a completed component or product - "top-down manufacturing".\n\nFeynman's idea remained largely undiscussed until the mid-80s, when the MIT-educated engineer K. Eric Drexler published "Engines of Creation", a book to popularize the potential of molecular nanotechnology. Because MNT would allow manufacturers to fabricate products from the bottom up with precise molecular control, a very wide range of chemically possible structures could be created. Since MNT systems could put every molecule in its specific place, molecular manufacturing processes could be very clean and efficient. Also, because every little bit of matter in an molecular nanotechnology system would be part of a nano-scale manipulator, nanotechnological systems could be far more productive and maintain much higher throughputs than modern manufacturing techniques, which use macro-scale manipulators to fabricate products.\n\nTo initiate an MNT revolution would require an "assembler" - a reprogrammable nano-scale manipulator capable of creating a wide range of molecular structures, including a complete copy of itself. The first assemblers will only function effectively in lab-controlled environments, such as a vacuum. The advent of self-replicating molecular nanomachines could quickly lead to "desktop nanofactories", tabletop appliances that consume modest amounts of power and contain the software required to manufacture an interesting range of useful products. The arrival of MNT would revolutionize wide sectors of human activity, including manufacturing, medicine, scientific research, communication, computing, and warfare. When full-blown molecular nanotechnology will arrive is currently unknown, but many experts foresee its arrival between 2010 and 2020.
702676
I'll say this much, there will always be structures and structures that need repair/modification and they will always be wherever you are. Electrical infrastructure is one thing that will be around for a long time, but electrical design and electronics design are getting offshored big time. In the 70's thru early 80s my part of the country was huge in defense contracts, then a downturn and tons of EEs out of work. Then telecom boomed and they became "valuable assets" due to the "shortage". Then telecom busted and EEs were on the street again and the recovering is slow in coming. Nanotech is supposed to be the next big thing around here, who knows when it will bust
973442
It is the cross disciplinary study of merging nanotechnology and genetics; i.e using nanostructure to create nanometer size machine. For example, a nanosize red blood cell would be used to cure some ailments.
474521
Nanotech engineering.
56693
Nanotechnology\n\nTechnology development at the atomic, molecular, or macromolecular range of approximately 1-100 nanometers to create and use structures, devices, and systems that have novel properties.\n\nOr to put it another way\n\nNanotechnology is a catch-all phrase for materials and devices that operate at the nanoscale. In the metric system of measurement, “Nano” equals a billionth and therefore a nanometer is one-billionth of a meter. References to nano materials, nanoelectronics, nano devices and nanopowders simply mean the material or activity can be measured in nanometers. To appreciate the size, a human red blood cell is over 2,000 nanometers long, virtually outside the nanoscale range!\n \n  \n \nRecently, government and private institutions have devoted substantial research into finding potential valuable uses at this scale, as discussed below.
533739
Nanotech is currently in existence, and being used commercially in special (and expensive) products such as memory cloth (capable of holding its shape when an electical current, such as bioelectromagnetic fields, passes through it. The normal looking synthetic cloth becomes strong and stiff as aluminium to a preprogrammed shape (exactly like what was seen in the hollywood blockbuster Batman Begins).\nTechnology in this area has limitless potential for growth, and as human understanding of the little pieces that make up everything improves, everything we use will become smaller and more useful. Are there littler pieces that make up the strings that Super String Theory has come to understand are the building blocks of thought and feeling? can those smaller pieces be used to control energy itself in order to literally control the fabric of existence? or make objects disappear into the space that makes up 99.9recurring percent of the size of matter? These things are well and truly feasable. Turning worthless metals into gold or diamond is ancient alchemical technology, developed and used over 4000 years ago. I think we can aim higher than that.\nIn the future, assembly lines will not be neccessary, as the nanobites will be programmed to repair, rebuild and replace themselves and each other, in-situ, as necessary, with the use of artificial intelligence programming.
1004865
Nanotechnology is a catch-all phrase for materials and devices that operate at the nanoscale. In the metric system of measurement, “Nano” equals a billionth and therefore a nanometer is one-billionth of a meter. References to nano materials, nanoelectronics, nano devices and nanopowders simply mean the material or activity can be measured in nanometers. To appreciate the size, a human red blood cell is over 2,000 nanometers long, virtually outside the nanoscale range!\n \n  \n \nRecently, government and private institutions have devoted substantial research into finding potential valuable uses at this scale, as discussed below.
406593
The term "nanotechnology" was defined by Tokyo Science University Professor Norio Taniguchi in a 1974 paper (N. Taniguchi, "On the Basic Concept of 'Nano-Technology'," Proc. Intl. Conf. Prod. Eng. Tokyo, Part II, Japan Society of Precision Engineering, 1974.) as follows: "'Nano-technology' mainly consists of the processing of, separation, consolidation, and deformation of materials by one atom or one molecule."
450058
A nanometer is one billionth of a meter.  Nanotechnology is any technology which exploits phenomena and structures that can only occur at the nanometer scale, which is the scale of several atoms and small molecules.  There are proposed uses for this in many industries.  For example, nanobots could go into your bloodstream and promote healing like in sci-fi movies.
1054659
nanotechnology is the art of manipulating materials on an atomic or molecular scale especially to build microscopic devices (as robots).  biotechnology is biological science when applied especially in genetic engineering and recombinant DNA technology.  Since you want a biology course that will grow and pay with least amount of math i thing you should go with courses related to genetics, DNA, and as you said biotechnology.  \n\nHope you got what u needed.
553992
here is something:\nwww.mmsconferencing.com/nanoc/\npdf/finalcircular.pdf\nand here is something else:\nNano-concrete is an example of a non-exotic material made better through nanotechnology and coming to market.  The ability to see and analyze material at the nano-scale means that concrete can now be  manufactured in such a way as to enable 3-inch thick highway bridge decks.  There are 150,000 obsolete bridges in the U.S. alone.  Nano-concrete can enable them to be rebuilt more cheaply and faster, and to be stronger and longer lasting.  The key impediment will be standard aversion to new ideas in the construction industry.\nanyway, google it for more info
445509
Best bet would be physics, chemistry, and engineering for your undergrad training, followed by materials science and any specific nanotech courses in grad school-a master's or better would be needed.  Cal tech is tops in this field.
742040
Nanotechnology has a lot of scope\nIt can take artificial intelligience 2 new heights\nIt can completely dh world around us by creating Smart devices tht may also rival Human Brains\nSomething tht will surely get better with nanotechnology is Computer softwares & also huge memories could b stored in very tiny chips........the possibilities r endless\nSo keep Imagining
646996
I have read that future nanotechnology may involve many small machines building small structures.\n\nToday, though, nanotechnology isn't quite that exotic.  For example, lithography is often used in microprocessor production to create patterns on semiconductor surfaces by focusing light through a pattern mask.  The surface is covered by a material called photo-resist that changes when hit by the light.  Then the photo-resist is etched away with acid leaving the very small pattern that was focused on the surface.  Then a layer of material is applied (metal for wire connections, transistor parts, etc).  Many additional layers are required before the processor is completed.\n\nAlso, there are other technologies such as electron beam lithography, molecular beam epitaxy and probably quite a few others.  Basically, it is just shooting a tighly controlled beam of electrons or molecules at a surface to create patterns.\n\nI think there are other areas of nanotech involving chemistry and microbiology.  I just know a few things about electrical engineering nanotech, though.\n\nhttp://en.wikipedia.org/wiki/Nanotechnology\nhttp://en.wikipedia.org/wiki/Photolithography\nhttp://en.wikipedia.org/wiki/Molecular_beam_epitaxy\nhttp://en.wikipedia.org/wiki/Electron_beam_lithography
124174
Do you have an MD? What other scientific background do you have? What country are you in? \n\nIf you have an MD, I would suggest you apply for a PhD, so you can be an MD/PhD. That would put you in a very powerful position. I would look for graduate programs exploring the medical implications of nanotechnology.
528635
Nanotechnology, currently, mostly has to do with materials science, via creating micro structures that can withstand extreme stresses in either longitudal (carbon nano-tubes) or rotational (bucky-balls) directions, and any connection to aerospace is merely a coincidental imagining of people who are dreaming up ways to use these new exotic materials for aerospace applications.  Nanotechnology, in essesnce, is 'building' materials (metals, plastics, polycarbonates) from the basic atomic/molecular structure up.\n\nCurrently the only applications that I have heard of are in relation to a surface to low earth orbit(LEO)'elevator' which would be used to hoist payloads from the surface to LEO.  This setup would be extremely fragile though and tend to break even with the current nano-materials available.  \n\nThe other area where it would be of interest and much more probably of use, is in the area of heat resistant applications such at heat shields for re-entering spacecraft.  Nano-materials can be engineered to be highly resistant to high temperatures without their material properties changing drastically.  This would be a far greater useablility than any sort of space elevator.
15266
I'm not sure about cars in our pockets, but nanotech is already happening, and yes it is changing our lives. In its simplest form, materials tailored at the nanolevel (a primitive nanotech) are already in stores. Nanomedicine, especially lab-on-a-chip technology is partially available and promises to revolutionize the way we do medicine. I don't know about some of the crazier promises (smart fog and such), but research at the nanoscale is changing our lives and will continue to do so.