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Tag: "titanium" at biology news

Nanotextured implant materials: blending in, not fighting back

...ineering , Webster and Haberstroh pressed together titanium particles that were less than 1 micron in size to create titanium with nanoscale surface texture. When they compared samples of the nanostructured material to convent...

Study to explore using magnets to correct 'sunken chest'

...P device. The internal magnet is laser-welded in a titanium case, assuring its safety. The magnets have been found to have no effect on the heart or other body parts, and studies have demonstrated that long-term exposure to magnetic fields is not harmful. Sunken chest had long been considered a cosmetic de...

Uniform tungsten trimers stand and deliver

...oxide clusters line up molecule-by-molecule on the titanium dioxide platform. One tungsten atom from each clus...nted in one of two directions on a single layer of titanium oxide crystals ?holds promise as a platform for studying the behavior of early transition metal oxid...

Nanotechnology being used to improve biocompatibility of human prosthetics and implants

...and prosthetics calcium phosphate (CP) coatings on titanium alloy implants are proving their worth in orthopae...ings used to promote rapid bone remodelling on the titanium alloy implants. It is well known that the microstructure of these coatings significantly influences ...

Brain-computer link lets paralyzed patients convert thoughts into actions

...ons and transmit them through thin gold wires to a titanium pedestal that protrudes about an inch above the patient's scalp. An external cable connects the pedestal to computers, signal processors and monitors. Converting digitized intentions into meaningful action, however, is not simple. Active neurons f...

A bathroom that cleans itself

...als, a research team is studying tiny particles of titanium dioxide currently used on outdoor surfaces such as...rganic compounds. And because surfaces coated with titanium dioxide have another property called 'superhydrophilicity' -- meaning droplets do not form -- wate...

Findings advance use of adult stem cells for replacement bone

...Upma Sharma, accomplished this by seeding discs of titanium mesh with stem cells and encouraging them to form ...se pre-generated ECM constructs and on non-treated titanium scaffolds. The pre-treated surfaces encouraged calcification at a much faster rate. The researchers ...

Bare metal stents deliver gene therapy to heart vessels with less inflammation in animal studies

...rthopedic pins and rods, pacemaker electrodes, and titanium tooth implants. "The results of our study may have broader implications for other diseases in which implantable medical devices may be used to deliver gene therapy," said Dr. Levy. Dr. Levy's co-authors included Ilia Fishbein, M.D., Ivan S. Alferiev...

World-first technology enables study of ancient bacteria

...hich is the first of its kind in the world. Using titanium and stainless steel alloys, and sapphire windows, the Centre's experts have built an isolation system, as well as a special cutting chamber to enable scientists to take precise sediment samples and grow bacteria from them at pressures as high as 1,00...

Secrets of the deep may hold key to life on other planets

...f hydrothermal animals have already been placed in titanium mesh cages at hydrothermal vent sites 3.5km down in the ocean. Dr Little will return to these sites in the East Pacific Rise off the coast of South America over the next three years to examine the fossilisation process. ...

Innovative coating could give medical implants a longer life

...he body." The researchers tested their coating on titanium dioxide (a material common in medical implants) in environments that simulated physiologic conditions with fresh serum and cells. The coating anchored itself firmly to the surface and demonstrated excellent resistance to proteins and cells during the...

UCSD medical/bioengineering reseachers show titanium debris satobtage artificial joints

Microscopic titanium particles weaken the bonding of hip, knee, and oth... School of Engineering. The team demonstrated that titanium implants are safe in large blocks, but at the microscopic level, wear and tear can generate micromet...

Nano-bumps could help repair clogged blood vessels

...ts from the vessels. The stents, which are made of titanium and other metals, enable the arteries to grow new ...ous scar tissue." The researchers tested discs of titanium containing surface bumps about as wide as 100 nanometers ?or billionths of a meter. The metals used ...

Use of PET can reduce, may eliminate more strenuous drug development trials with animals

... researchers gained more of an understanding about titanium anti-cancer drugs and new techniques for PET imaging with 45Ti, which they found to have excellent imaging characteristics and to be relatively inexpensive to produce. Welch and his researchers are also investigating the effect of cancer therapies on...

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