Nanotechnology: What It Is and How It Is Important
byYASSINE AAMMAL•
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Nanotechnology is sometimes referred to as a general-purpose technology because in its advanced form it will have a significant impact on almost all industries and all area% of society. It will offer better built. longer-lasting. cleaner. safety and smaller products for the house, communications. medicine. transportation. agriculture and industry in general. Academic interest in the unconventional characteristics of the nano-structured materials received a boost through the versatile application of new materials precisely engineered at nano-dimensions.
The realization of the bottom-up approach of molecular nanotech further attracted the interest of scientists working on materials. IT. biotech. healthcare. environment protection. etc. While the research interest diversified from nanodevice to nanosciences, nanotechnology and the design of nanomaterials. the number of designs of nanomaterials, and the number of institutions investigating nano-phenomenon spurted. Because of the opportunities nanotechnology offers in creating new features and functions, it is already providing the solutions to many long-standing medical, social and environmental problems. Nanotechnology is of global interest because of its potential. It is attracting more public funding than any other area of technology. estimated at 3.8 billion sums worldwide in 2005. It is also one area of research that is truly multidisciplinary.
The contribution of nanotechnology) to new products and processes cannot be made in isolation and requires a team effort, which may include life scientists, biologists and biochemists working with physicists. chemists and information technology experts. Consider the development of a new cochlear implant and what that might require—at least physiologists. an electronic engineer, a mechanical engineer and a biomaterials expert. This kind of teamwork is essential, not only for a cochlear implant. but also for any new nano-based product.
The Importance of Nanotechnology
Nanotechnology is expected to provide a valuable set of research tools and clinically useful gadgets in the near future. New commercial applications in the pharmaceutical industry, such as enhanced drug delivery systems, new therapeutics, and in vivo imaging, are expected to be developed, according to the National Nanotechnology Initiative.
Current research focuses on neuro-electronic interfaces and other nanoelectronics-based sensors. Cell repair machines are thought to have the potential to further revolutionize medicine in the speculative field of molecular nanotechnology.
Nanotechnology is intended to provide a new and better way to diagnose and cure cancer. Large biological molecules can interact with nanoscale gadgets on the surface and inside cancer cells. Because biological processes, such as those that lead to cancer, take place on a nanoscale at the surface and inside cells, nanotechnology provides a wealth of instruments.
Nanotechnology-related concerns
Nanotechnology, like the introduction of any powerful new technology, is likely to have a variety of harmful as well as good consequences.
Some people are raising ethical, environmental, and economic concerns as an investment in nanoscience and nanotechnology continues. While science-fiction predictions of 'grey goo' (millions of self-replicating nanomachines) destroying the earth are implausible, there are legitimate concerns about other aspects of nanotechnology.
How do manufactured nanoparticles interact with biological processes in the human body, for example, and what health consequences might this have? Various nanomaterials were found to alter the creation of fibrous protein tangles in laboratory testing, which are similar to those seen in some brain disorders. Nanoparticles may cause genetic harm, according to some studies. The effect of nanoparticles on the heart and blood arteries has also been studied.
Long-term exposure to nanoparticles is something that needs to be monitored, especially as they grow increasingly ubiquitous in everyday things. Carbon nanotubes, of which about 5,000 tonnes are produced each year for commercial use, have been shown to cause cancer in animal testing, and many resemble the shape and size of asbestos fibres, according to Dr Sam Bruschi, toxicologist and member of the National Industrial Chemicals Notification and Assessment Scheme (NICNAS).
Conclusion
Nanotech goods, materials, and applications that are truly revolutionary, such as nanorobotics, are years away (some say only a few years; some say many years). Today, "nanotechnology" refers to basic research and development taking place in laboratories all around the world.
Today's "nanotech" products are mostly incrementally improved (evolutionary nanotechnology) products that use some form of nano-enabled material (such as carbon nanotubes, graphene, nanocomposite structures, or nanoparticles of a specific substance) or nanotech process (e.g. nanopatterning or quantum dots for medical imaging) in the manufacturing process. What happens if nanoparticles get into the body or the environment, for example?
Nanotechnology and nanoparticles can raise a slew of environmental, health, and safety concerns.