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Nanotechnology in agri-food production: an overview
Don't have an account? Sign Up. Update your profile Let us wish you a happy birthday! Add your birthday. Every time the surface is optimized, material is saved. Thus, creating these nanoparticles will increase the effectiveness of the resulting diesel engine catalyst—in turn leading to cleaner exhaust fumes—and will decrease cost. Nanotechnology also has a prominent role in the fast developing field of Tissue Engineering. When designing scaffolds, researchers attempt to mimic the nanoscale features of a cell 's microenvironment to direct its differentiation down a suitable lineage.
Researchers have successfully used DNA origami -based nanobots capable of carrying out logic functions to achieve targeted drug delivery in cockroaches. It is said that the computational power of these nanobots can be scaled up to that of a Commodore An area of concern is the effect that industrial-scale manufacturing and use of nanomaterials would have on human health and the environment, as suggested by nanotoxicology research.
For these reasons, some groups advocate that nanotechnology be regulated by governments.
Others counter that overregulation would stifle scientific research and the development of beneficial innovations. Public health research agencies, such as the National Institute for Occupational Safety and Health are actively conducting research on potential health effects stemming from exposures to nanoparticles. Some nanoparticle products may have unintended consequences. Researchers have discovered that bacteriostatic silver nanoparticles used in socks to reduce foot odor are being released in the wash.
Public deliberations on risk perception in the US and UK carried out by the Center for Nanotechnology in Society found that participants were more positive about nanotechnologies for energy applications than for health applications, with health applications raising moral and ethical dilemmas such as cost and availability.
Experts, including director of the Woodrow Wilson Center's Project on Emerging Nanotechnologies David Rejeski, have testified  that successful commercialization depends on adequate oversight, risk research strategy, and public engagement. Berkeley, California is currently the only city in the United States to regulate nanotechnology;  Cambridge, Massachusetts in considered enacting a similar law,  but ultimately rejected it. Over the next several decades, applications of nanotechnology will likely include much higher-capacity computers, active materials of various kinds, and cellular-scale biomedical devices.
Nanofibers are used in several areas and in different products, in everything from aircraft wings to tennis rackets. Inhaling airborne nanoparticles and nanofibers may lead to a number of pulmonary diseases , e. A two-year study at UCLA's School of Public Health found lab mice consuming nano-titanium dioxide showed DNA and chromosome damage to a degree "linked to all the big killers of man, namely cancer, heart disease, neurological disease and aging". A major study published more recently in Nature Nanotechnology suggests some forms of carbon nanotubes — a poster child for the "nanotechnology revolution" — could be as harmful as asbestos if inhaled in sufficient quantities.
Anthony Seaton of the Institute of Occupational Medicine in Edinburgh, Scotland, who contributed to the article on carbon nanotubes said "We know that some of them probably have the potential to cause mesothelioma. So those sorts of materials need to be handled very carefully. Calls for tighter regulation of nanotechnology have occurred alongside a growing debate related to the human health and safety risks of nanotechnology.
Some regulatory agencies currently cover some nanotechnology products and processes to varying degrees — by "bolting on" nanotechnology to existing regulations — there are clear gaps in these regimes. Stakeholders concerned by the lack of a regulatory framework to assess and control risks associated with the release of nanoparticles and nanotubes have drawn parallels with bovine spongiform encephalopathy "mad cow" disease , thalidomide , genetically modified food,  nuclear energy, reproductive technologies, biotechnology, and asbestosis.
Andrew Maynard, chief science advisor to the Woodrow Wilson Center's Project on Emerging Nanotechnologies, concludes that there is insufficient funding for human health and safety research, and as a result there is currently limited understanding of the human health and safety risks associated with nanotechnology. The Royal Society report  identified a risk of nanoparticles or nanotubes being released during disposal, destruction and recycling, and recommended that "manufacturers of products that fall under extended producer responsibility regimes such as end-of-life regulations publish procedures outlining how these materials will be managed to minimize possible human and environmental exposure" p.
The Center for Nanotechnology in Society has found that people respond to nanotechnologies differently, depending on application — with participants in public deliberations more positive about nanotechnologies for energy than health applications — suggesting that any public calls for nano regulations may differ by technology sector.
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From Wikipedia, the free encyclopedia. For the materials science journal, see Nanotechnology journal. For other uses of "Nanotech", see Nanotech disambiguation. Main article: History of nanotechnology. Main article: Nanomaterials. Main article: Molecular self-assembly. Main article: Molecular nanotechnology. Play media. Main article: List of nanotechnology applications. Main article: Implications of nanotechnology. Main articles: Health and safety hazards of nanomaterials and Pollution from nanomaterials. Main article: Regulation of nanotechnology. Technology portal. Main article: Outline of nanotechnology.
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Nanotechnology in agri-food production: an overview
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