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Nanotechnology: Past, Present, and Future
Transcript of Nanotechnology: Past, Present, and Future
cont. Present Future Future cont. Definition: The first true discovery was made by Michael Faraday in 1857, from his discovery of colloidal “ruby” gold. He demonstrated that nanostructured gold put under certain lighting conditions can produce lighting of various colors. What types of nanotechnology will be available in the future? Nanotechnology will help create new ways to help the environment: Past In Conclusion: Medical Purposes of Nanotechnology: -Nanotechnology is already moving from being used in passive structures to active structures, through more targeted drug therapies or “smart drugs.” Environmental Uses of Nanotechnology:
1.Generating less pollution during the manufacture of materials.
2. Producing solar cells that generate electricity at a competitive cost.
3. Increasing the electricity generated by windmills.
4. Cleaning up organic chemicals polluting groundwater
5.Capturing carbon dioxide in power plant exhaust Researchers are developing nanostructred membranes designed to capture carbon dioxide in the exhaust stacks of power plants instead of releasing it into the air. The study and the application of really small things (robots) that can be used in any area of science: chemistry and biology to name a few. Then, in 1959, the first nanotechnological presentation was given by Richard Feynman of the California Institute of Technology. It was named "There's Plenty of Room at the Bottom," and he began with,“What I want to talk about is the problem of manipulating and controlling things on a small scale." He declared that “the principles of physics, as far as I can see, do not speak against the possibility of maneuvering things atom by atom” In this lecture, Feynman chose several categories to touch on that today define nanotechnology in itself, like building smaller and faster computers. Nanocoatings:
-Wilson Double Core tennis balls have a nanocomposite coating that keeps it bouncing twice as long as an old-style ball. Made by InMat LLC, this nanocomposite is a mix of butyl rubber, intermingled with nanoclay particles, giving the ball substantially longer shelf life.
-Used in packaging, like beer bottles, as a barrier, allowing for thinner material, with a subsequently lighter weight, and greater shelf-life.
-Metal nanocrystals might be incorporated into car bumpers, making the parts stronger, or into aluminum, making it more wear resistant. Norio Taniguchi, a professor at Tokyo Science University, first officially coined the term "nanotechnology". In 1974 he was describing the atomic-dimension precision machining of materials, and the name stuck. Soon after this initiation of the term, in the 1980s and 90s, nanotechnology companies began to erupt. For example, Nanophase Technologies in 1989, Helix Energy Solutions Group in 1990, Zyvex in 1997, and then Nano-Tex in 1998. - These molecular structures could be the basis for the regeneration and replacement of body parts that are currently lost to infection, accident or disease. In the future it is predicted that we will have to capability to repliecte things:
Create new products without using traditional labor methods.
Decrease in manufacturing costs.
Would make consumer goods plentiful and cheaper.
We'll be able to replicate anything from food to diamonds. -the National Cancer Institute has created the Alliance for Nanotechnology in Cancer in the hope that investments in this branch of nanomedicine could lead to breakthroughs in terms of detecting, diagnosing, and treating various forms of cancer. In the very early 1800s, the first ever proposition of the atom was made by John Dalton. Nanotechnology will have a huge impact on the medical industry:
•Patients will one day be able to drink fluids containing “nanorobots” which will attack the molecular structure of cancer cells and viruses.
Speculation that “nanorobots” could reverse the aging process and increase life expectancy.
“Nanosurgeons” may be able to perform delicate surgeries without the high risk. Scientists may one day be able to program airborne “nanorobots” to rebuild the ozone layer.
It will be used to help clean up oil spills.
Oil by itself is not magnetic, but when mixed with water-repellent "nanoparticles" that contain iron, the oil can be magnetically separated from the oil. This would lead to clean water after spills and the oil will be reusable. This compares to: 1/80,000 width of human hair
10 Hydrogen atoms strung together
1/3 the height of a single strand of DNA https://encryptedtbn0.gstatic.com/images?q=tbn:ANd9GcQy5B4TLI9v3nZf96RXdH4L5RfJbPUlR45zR0AxMpIZuPlqFVrP https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcQQWFcKUZz2rIB8MFXUN_oHl5wPJEAYEH_p0sLmpReicXUITsQjAA https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcQXG9Wtu_W57tWoN-aRHyrMLVGzBfAHs4B1QKCA6oicGpgeuz29jg Works Cited:
http://library.csus.edu/guides/rogenmoserd/general/apa.html Devices have dimensions of 1-10,000 nanometers - Nanotechnology is a newer field of technology
- It already has an impact in different fields, ranging from medical to environmental
- It has the potential to really help society in the future Just a thought to leave you with: http://www.pbs.org/wgbh/nova/sciencenow/3209/03-canc-nf.html