Ceramic nanoparticles for cleaner diesel fuel
Oxonica is working to generate a range of future product applications. These include additional fuel saving additives, marker technology for the clinical and life science diagnostics markets, further UV protection applications, including tailoring the Optisol™ product in the cosmetics markets, and new products for plastics and coatings, transparent conducting films and security markers.
Nanotechnology is widely seen as having potential to bring benefits to many areas of product application, in areas as diverse as drug development, energy and environment, information and communication technologies, and the production of stronger, lighter materials.
Chemistry, Nanotechnology, Research, yr10 | Comments (2)Dangers of Nanotechnology
After months of intensive study, the Center for Responsible Nanotechnology (CRN) has identified 11 separate, significant risks of advanced nanotechnology. CRN is also researching solutions that may effectively address each of those risks. Descriptions of all the risks—and proposed solutions—are now posted online at www.crnano.org/overview.htm.
Chris Phoenix, CRN’s Director of Research, emphasizes that these are preliminary findings. “These new web pages summarize the existing state of our understanding of molecular nanotechnology, its risks and problems, and possible solutions that can promote safe use while avoiding unsafe or irresponsible use,” says Phoenix. “Some of our opinions will probably change. We are publishing these results now because we are looking for comments and criticism from interested and informed parties.”
It’s important to note that ‘nanotechnology’ means different things to different people. Most of today’s investment and press coverage concerns nanomaterials research, which deals with exploiting novel properties of materials at the nanoscale. CRN’s research and policy papers focus on molecular nanotechnology (MNT), a near-future technology that will build machines and products molecule by molecule, with every atom precisely placed.
Molecular nanotechnology will be a significant breakthrough, comparable perhaps to the Industrial Revolution—but compressed into a few years. The potential benefits to humanity are almost incalculable, but in order to avoid the dangers we must thoroughly understand them and then develop a comprehensive plan to avert them. The first step in understanding the dangers is to identify them, and CRN has begun that important process.
“One of the dangers of talking about risks is that it can prompt knee-jerk reactions in some people,” says Mike Treder, Executive Director of CRN. “There are indeed serious risks, and many of them are quite worrisome. The answer, however, is not to hide our heads in the sand and hope nanotech will go away, because it won’t. Sooner or later, someone will develop MNT, and it will be very disruptive. We need to perform a thorough, rational exploration of all the problems that may arise, and then seek effective solutions.”
Chemistry, Nanotechnology, Research, yr10 | Comment (0)Nanotechnology
Nanotechnology in the area of Medicine:Applying nanotechnology for treatment, diagnosis, monitoring, and control of diseases has been referred to as “nanomedicine”.Nanotechnology covers nanoparticle drug delivery and possible future applications of molecular nanotechnology and nanovaccinology. It’s main function is the identification of exact location (receptor and cell) causing malfunction of body and the selection of the right nanocarriers to deliver the desired result without causing any severe side effect to the body.
Nanotechnology
Nanotechnology is a highly multidisciplinary field, drawing from fields such as applied physics, materials science, interface and colloid science, device physics, supramolecular chemistry (which refers to the area of chemistry that focuses on the noncovalent bonding interactions of molecules), self-replicating machines and robotics, chemical engineering, mechanical engineering, biological engineering, and electrical engineering. Grouping of the sciences under the umbrella of “nanotechnology” has been questioned on the basis that there is little actual boundary-crossing between the sciences that operate on the nano-scale. Instrumentation is the only area of technology common to all disciplines; on the contrary, for example pharmaceutical and semiconductor industries do not “talk with each other”. Corporations that call their products “nanotechnology” typically market them only to a certain industrial cluster.[1]
Two main approaches are used in nanotechnology. In the “bottom-up” approach, materials and devices are built from molecular components which assemble themselves chemically by principles of molecular recognition. In the “top-down” approach, nano-objects are constructed from larger entities without atomic-level control. The impetus for nanotechnology comes from a renewed interest in Interface and Colloid Science, coupled with a new generation of analytical tools such as the atomic force microscope (AFM), and the scanning tunneling microscope (STM). Combined with refined processes such as electron beam lithography and molecular beam epitaxy, these instruments allow the deliberate manipulation of nanostructures, and lead to the observation of novel phenomena.
Examples of nanotechnology are the manufacture of polymers based on molecular structure, and the design of computer chip layouts based on surface science. Despite the promise of nanotechnologies such as quantum dots and nanotubes, real commercial applications have mainly used the advantages of colloidal nanoparticles in bulk form, such as suntan lotion, cosmetics, protective coatings, drug delivery,[2] and stain resistant clothing.
Chemistry, Homework, Nanotechnology, Research, yr10 | Comment (0)Nanotechnology Links
hiya i like nanotechnology we are going to learn about it =]
Chemistry, Homework, Nanotechnology, Research, yr10 | Comment (0)Hello world!
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