NANOTECHNOLOGY MEDICINE EPUB
Molecular nanotechnology is a speculative subfield of nanotechnology regarding the possibility of engineering molecular assemblers, machines which could re-order matter at a molecular or atomic scale. Nanomedicine would make use of these nanorobots, introduced into the body, to repair or detect damages and infections.Drug delivery · Applications · Sensing · Tissue engineering. One application of nanotechnology in medicine currently being developed involves employing nanoparticles to deliver drugs, heat, light or other substances to specific types of cells (such as cancer cells). For example, nanoparticles that deliver chemotherapy drugs directly to cancer cells are under development. Nanotechnology is the study of extremely small structures, having size of to nm. Nano medicine is a relatively new field of science and.
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NANOTECHNOLOGY MEDICINE EPUB
It should be appreciated that nanotechnology is not in itself a single emerging scientific discipline, but rather, a meeting of different traditional sciences, such as, chemistry, physics, materials science and biology, to bring together the required collective expertise needed to develop these novel nanotechnology medicine.
By manipulating drugs and other materials at the nanometer scale, the fundamental properties and bioactivity of the materials can be nanotechnology medicine. These tools can permit a control over the different characteristics of drugs nanotechnology medicine agents such as: Precise control and manipulation of nanomachinery in cells can lead to better understanding of the cellular mechanisms in living cells, and to the development of advanced technologies, for the early diagnosis and treatment of various diseases.
Nanotechnology in Medicine
The significance of this research lies in the development of a platform technology that will influence nanoscale imaging approaches designed nanotechnology medicine probe molecular mechanisms in living cells.
The merging of nanotechnology with molecular imaging provides nanotechnology medicine versatile platform for the novel design of nanoprobes that will have tremendous potential to enhance the sensitivity, specificity and signalling capabilities of various biomarkers in human diseases.
Simple magnetic nanoparticles can function as magnetic resonance imaging MRI contrast enhancement probes. But another challenge is how to quickly secure public confidence that this rapidly expanding technology is safe. And so far, it is not clear whether that is being done.
There are those who suggest concerns about nanotechnology may nanotechnology medicine over-exaggerated. They point to the fact that just because a material is nanosized, it nanotechnology medicine not mean it is dangerous, indeed nanoparticles have been around since the Earth was born, occurring naturally in volcanic ash and sea-spray, for example.
As byproducts of human activity, they have been present since the Stone Nanotechnology medicine, in smoke and soot. Of attempts to investigate the safety of nanomaterials, the National Cancer Institute in the US says there are so many nanoparticles naturally present in the environment that they are "often at order-of-magnitude higher levels than the engineered particles being evaluated".
In many respects, they point out, "most engineered nanoparticles are far less toxic than household cleaning products, insecticides used on family pets, and over-the-counter dandruff remedies," and that for instance, in their use as carriers of chemotherapeutics in cancer treatment, they are much less toxic than the drugs they carry.
It is perhaps more in the food sector that we have seen some of the greatest expansion of nanomaterials on a commercial level. Although the number of foods that contain nanomaterials is still small, it appears set to change over the next few years as nanotechnology medicine technology develops.
Nanotechnology: The Future Medicine
Nanomaterials are already used to nanotechnology medicine levels of fat and sugar without altering taste, or to improve packaging to keep food fresher for longer, or to tell consumers if the food is spoiled. They are also being used to increase the bioavailablity of nutrients for instance in food supplements.
But, there are also concerned parties, who highlight that while the pace of research quickens, and the market for nanomaterials expands, it appears not enough is being done to discover their toxicological consequences. This was the view of a science and technology committee of the House nanotechnology medicine Lords of the British Parliament, who in a recent report nanotechnology medicine nanotechnology and food, raise several concerns about nanomaterials and human health, particularly the risk posed by ingested nanomaterials.
For instance, one area that concerns the committee is the size and exceptional mobility of nanoparticles: Another is the solubility and persistence of nanomaterials.
Nanomedicine - Wikipedia
Nanotechnology medicine happens, for instance, to insoluble nanoparticles? If they can't be broken down and digested or degraded, is there a danger they nanotechnology medicine accumulate and damage organs? Nanomaterials comprising inorganic metal oxides and metals are thought to be the ones most likely to pose a risk in this area.
Also, because of their high surface area to mass ratio, nanoparticles are highly reactive, nanotechnology medicine may for instance, trigger as yet unknown chemical reactions, or by bonding with toxins, allow them to enter cells that they would otherwise have no access to.
For instance, with their large surface area, reactivity and electrical charge, nanomaterials nanotechnology medicine the conditions for what is described as "particle aggregation" due to physical forces and "particle agglomoration" due to chemical forces, so that individual nanoparticles come together to form larger ones.
This may lead not only to dramatically larger particles, for instance in the gut and inside cells, but could also result in disaggregation of clumps of nanoparticles, which could radically alter their physicochemical properties and chemical reactivity.
Novel applications of nanotechnology include nanostructure scaffolds for tissue nanotechnology medicine, nanostructures that allow transport across biological barriers, remote control of nanoprobes, integrated implantable sensory nanoelectronic systems and multifunctional nanotechnology medicine structures for drug delivery and targeting of disease.
A recent ObservatoryNano report lists nanotechnological applications in health and medicine pdf.
The two main areas in nanomedicine are: Nanomedicine Nanotechnology medicine In the past few decades, imaging has become a critical tool in the diagnosis of disease. As with any advance in diagnostics, the ultimate goal is to enable physicians to identify a disease as early as possible.
Nanotechnology is expected to make diagnosis possible at the cellular and even the sub-cellular level. Quantum dots in nanotechnology medicine have finally taken the step from pure demonstration experiments to real applications in imaging.
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