Electrical signals are converted into sound in a cell phone and by reversing this technique; researchers claim to have that they can significantly enhance the efficiencies of LEDs and computer chips. The speakers in a cell phone use piezo electric device that generally operates at low frequency easily heard by human ear, however the detection [...]
Archive for March, 2009
Conversion of sound waves to electricity could lead to better LEDs and computer chips
Special gold nanoparticles show promise for ‘cooking’ cancer cells
Researchers have developed the first hollow gold nanospheres — smaller than the finest flecks of dust — that search out and “cook” cancer cells. The cancer-destroying nanospheres show particular promise as a minimally invasive future treatment for malignant melanoma, the most serious form of skin cancer, the researchers say. Their study is scheduled for presentation [...]
Hollow gold nanospheres show promise for biomedical and other applications
A new metal nanostructure developed by researchers at the University of California, Santa Cruz, has already shown promise in cancer therapy studies and could be used for chemical and biological sensors and other applications as well. The hollow gold nanospheres have a unique set of properties, including strong, narrow and tunable absorption of light.
Engineers prove that carbon nanotubes are superior to metals for electronics
‘We are done with metals,’ says Cemal Basaran
‘Buckyballs’ to treat multiple sclerosis
If you’re of a certain age, you’ll remember Buckminster Fuller’s distinctive “geodesic domes” — soccer-ball-shaped structures that the late futurist envisioned as ideal human domiciles. Tel Aviv University chemists remember them too — and are now putting them to use in the treatment of multiple sclerosis.
Non-random palladium/gold nanoparticles synthesized using galvanic replacement reaction
Nanomaterials that are composed of two metallic ingredients are best suitable for many new advance applications including catalytic and electronic applications as these bimetallic nanoparticles have unique physical and electronic properties, however previous research shows that palladium and gold nanoparticles have excellent catalytic properties and therefore can be used in alternative energy applications. The bimetallic [...]
New nanotechnology patents filed by Indian Institute of Technology, Madras
Nanotechnology is one of the forefront areas of research at premiere institutes worldwide and in Indian Institute of Technology, Madras also major work has been carried out in this area. The Indian premier research institute has recently been filed two new patents on nanotechnology applications and one patent is for better cancer drug delivery application [...]
No small measure: Origins of nanorod diameter discovered
A new study answers a key question at the very heart of nanotechnology: Why are nanorods so small? Researchers at Rensselaer Polytechnic Institute have discovered the origins of nanorod diameter, demonstrating that the competition and collaboration among various mechanisms of atomic transport hold the key to nanorod size. The researchers say it is the first [...]
Slimmer, stickier nanorods give boost to 3-D computer chips
Researchers at Rensselaer Polytechnic Institute have developed a new technique for growing slimmer copper nanorods, a key step for advancing integrated 3-D chip technology. These thinner copper nanorods fuse together, or anneal, at about 300 degrees Celsius. This relatively low annealing temperature could make the nanorods ideal for use in heat-sensitive nanoelectronics, particularly for “gluing” [...]
Nanocups brim with potential
Light-bending metamaterial could lead to superlenses, invisibility cloaks
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