Featured Research

from universities, journals, and other organizations

Hot Ice To Lubricate Artificial Joints

Date:
September 12, 2007
Source:
American Physical Society
Summary:
A recent simulation has shown that thin layers of ice could persist on specially treated diamond coatings at temperatures well above body temperature, which could make ice-coated-diamond films an ideal coating for artificial heart valves, joint replacements, and wear-resistant prosthetics.

Water molecules (red and white) form orderly layers of ice on top of a layer of diamond (green) treated with sodium atoms (blue) in a simulation showing that such ice layers could persist well above body temperatures. Potentially, high temperature ice could make diamond coatings more suitable for implanted joints, heart valves, and other medical devices.
Credit: Alexander D. Wissner-Gross and Efthimios Kaxiras, Physical Review E, August 2007

A recent simulation has shown that thin layers of ice could persist on specially treated diamond coatings at temperatures well above body temperature, which could make ice-coated-diamond films an ideal coating for artificial heart valves, joint replacements, and wear-resistant prosthetics.

Physicists Alexander D. Wissner-Gross and Efthimios Kaxiras of Harvard modeled water ice on top of a diamond surface coated with sodium ions. They found that ice layers should persist on the treated diamond up to temperatures of 108 degrees Fahrenheit (42 Celsius), and in some circumstances could remain frozen beyond the boiling point of water.

Because of the gem's strength and other unusual characteristics, artificially grown diamond films are among the most promising candidates for applications ranging from medical implants to solar cells. Adding a layer of high-temperature ice could make the diamond even more suitable for medical devices by reducing its abrasiveness and inhibiting protein build-up.

Among other promising applications, the physicists believe that the ice layer could enhance the efficiency of diamond film-based solar collectors, while being much more environmentally friendly than lithium-ion batteries and other energy storage devices.

A short film that the researchers made from of some of their simulations was a finalist in the 2007 Materials Research Film Festival (http://www.alexwg.org/DiamondIce.mov).


Story Source:

The above story is based on materials provided by American Physical Society. Note: Materials may be edited for content and length.


Cite This Page:

American Physical Society. "Hot Ice To Lubricate Artificial Joints." ScienceDaily. ScienceDaily, 12 September 2007. <www.sciencedaily.com/releases/2007/09/070905203345.htm>.
American Physical Society. (2007, September 12). Hot Ice To Lubricate Artificial Joints. ScienceDaily. Retrieved April 19, 2014 from www.sciencedaily.com/releases/2007/09/070905203345.htm
American Physical Society. "Hot Ice To Lubricate Artificial Joints." ScienceDaily. www.sciencedaily.com/releases/2007/09/070905203345.htm (accessed April 19, 2014).

Share This



More Matter & Energy News

Saturday, April 19, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Small Reactors Could Be Future of Nuclear Energy

Small Reactors Could Be Future of Nuclear Energy

AP (Apr. 17, 2014) After the Fukushima nuclear disaster, the industry fell under intense scrutiny. Now, small underground nuclear power plants are being considered as the possible future of the nuclear energy. (April 17) Video provided by AP
Powered by NewsLook.com
Horseless Carriage Introduced at NY Auto Show

Horseless Carriage Introduced at NY Auto Show

AP (Apr. 17, 2014) An electric car that proponents hope will replace horse-drawn carriages in New York City has also been revealed at the auto show. (Apr. 17) Video provided by AP
Powered by NewsLook.com
Honda's New ASIMO Robot, More Human-Like Than Ever

Honda's New ASIMO Robot, More Human-Like Than Ever

AFP (Apr. 17, 2014) It walks and runs, even up and down stairs. It can open a bottle and serve a drink, and politely tries to shake hands with a stranger. Meet the latest ASIMO, Honda's humanoid robot. Duration: 00:54 Video provided by AFP
Powered by NewsLook.com
German Researchers Crack Samsung's Fingerprint Scanner

German Researchers Crack Samsung's Fingerprint Scanner

Newsy (Apr. 16, 2014) German researchers have used a fake fingerprint made from glue to bypass the fingerprint security system on Samsung's new Galaxy S5 smartphone. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins