New Technology Deposits Bone-Regenerating Materials On The Surface Of Implants

June 20, 1998

PASCO, Wash., June 20--Scientists today reported a new way to coat the surface of metal implants--used to replace hip, knee, finger, and shoulder joints--with materials that facilitate the growth of new bone. The new technology was described here at the Northwest Regional Meeting of the American Chemical Society, the world's largest scientific society.

Called Surface Induced Mineralization (SIM), the technique deposits calcium phosphate coatings on the surfaces of implants made of titanium and other metals. Since SIM technology is a water-based process, it is possible to incorporate growth factors, which promote new bone cells, directly into the coating. This represents a unique opportunity to create coatings that cause active new bone formation around, into or through itself, according to Allison A. Campbell, a researcher at the Pacific Northwest National Laboratory in Richland.

Dr. Campbell explained that most implants fail after a period of about 10 years because they become loose. The new coatings are designed to extend the life of the implant by stimulating the growth of new bone, which bonds with the natural bone surrounding it, thus anchoring the implant more firmly in place.

Dr. Campbell presided at a symposium at which she and nine other scientists reported new progress in the creation and use of biologically active materials, and the way the body responds to them. Such "bioactive" materials can grow new bone, deliver medications, and serve as a "scaffolding" on which the body can grow new tissue.

Dr. Campbell said the importance of biomaterials science has accelerated in recent years, as joint replacement surgery has become more sophisticated, even to the point where it is now possible to repair the hand--the body's most complicated mechanism--by replacing the joints of the fingers.

A nonprofit organization with a membership of more than 155,000 chemists and chemical engineers as its members, the American Chemical Society publishes scientific journals and databases, convenes major research conferences, and provides educational, science policy and career programs in chemistry. Its main offices are in Washington, D.C., and Columbus, Ohio.
-end-


American Chemical Society

Related Technology Articles from Brightsurf:

December issue SLAS Technology features 'advances in technology to address COVID-19'
The December issue of SLAS Technology is a special collection featuring the cover article, ''Advances in Technology to Address COVID-19'' by editors Edward Kai-Hua Chow, Ph.D., (National University of Singapore), Pak Kin Wong, Ph.D., (The Pennsylvania State University, PA, USA) and Xianting Ding, Ph.D., (Shanghai Jiao Tong University, Shanghai, China).

October issue SLAS Technology now available
The October issue of SLAS Technology features the cover article, 'Role of Digital Microfl-uidics in Enabling Access to Laboratory Automation and Making Biology Programmable' by Varun B.

Robot technology for everyone or only for the average person?
Robot technology is being used more and more in health rehabilitation and in working life.

Novel biomarker technology for cancer diagnostics
A new way of identifying cancer biomarkers has been developed by researchers at Lund University in Sweden.

Technology innovation for neurology
TU Graz researcher Francesco Greco has developed ultra-light tattoo electrodes that are hardly noticeable on the skin and make long-term measurements of brain activity cheaper and easier.

April's SLAS Technology is now available
April's Edition of SLAS Technology Features Cover Article, 'CURATE.AI: Optimizing Personalized Medicine with Artificial Intelligence'.

Technology in higher education: learning with it instead of from it
Technology has shifted the way that professors teach students in higher education.

Post-lithium technology
Next-generation batteries will probably see the replacement of lithium ions by more abundant and environmentally benign alkali metal or multivalent ions.

Rethinking the role of technology in the classroom
Introducing tablets and laptops to the classroom has certain educational virtues, according to Annahita Ball, an assistant professor in the University at Buffalo School of Social Work, but her research suggests that tech has its limitations as well.

The science and technology of FAST
The Five hundred-meter Aperture Spherical radio Telescope (FAST), located in a radio quiet zone, with the targets (e.g., radio pulsars and neutron stars, galactic and extragalactic 21-cm HI emission).

Read More: Technology News and Technology Current Events
Brightsurf.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.