Biomedical engineers at Purdue University have proven that bone cells attach better to metals with nanometer-scale surface features, offering hope for improved prosthetic hips, knees and other implants.
Conventional titanium alloys used in hip and knee replacements are relatively smooth – their surfaces possess bumps measured in microns – or millionths of a meter. Natural bone and other tissues, however, have rougher surfaces with bumps about 100 nanometers – or billionths of a meter – wide.
The body often reacts to the smooth artificial parts as it would to any foreign invader: It covers the parts with a fibrous tissue intended to remove the unwanted material. This fibrous tissue gets between prosthetic devices and damaged body parts, preventing prostheses from making good contact with the body parts in which they are implanted and interfering with their proper functioning.
Emil Venere | Purdue University
Purdue cancer identity technology makes it easier to find a tumor's 'address'
16.11.2018 | Purdue University
Microgel powder fights infection and helps wounds heal
14.11.2018 | Michigan Technological University
Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.
Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...
Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.
Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...
Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.
In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...
On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.
When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure
Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...
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06.11.2018 | Event News
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16.11.2018 | Health and Medicine
16.11.2018 | Life Sciences
16.11.2018 | Life Sciences