New bone bonding spheres aim to reduce implant replacement

Researchers at Oxford University’s Department of Materials have devised a new method of coating materials that are to be implanted into bone, resulting in encouraged bone in-growth and bonding while reducing the possibility of loosening implants.

Bone implants are desirable and/or essential in various medical procedures, and are often metallic and secured by an adhesive. Inert materials such as metals do not bond to the surrounding tissue and adhesives eventually degrade, allowing the implant to loosen and leading to the undesirable consequences of implant replacement.

Oxford researchers have addressed this weakness by developing a method of coating the implant so that bone in-growth is encouraged, the bonding is strengthened, and the possibility of loosening is greatly reduced. The coating consists of a phospholipid vesicle surrounded by a hydroxyapitite shell. These spheres are deposited in such a controlled manner in order to build a hierarchical pore structure that encourages bone in-growth.

It is envisaged that the vesicle can also be used to deliver drugs directly to the affected site; in particular, possible applications include using bone morphogenetic proteins to enhance osseointegration, and antibiotics to reduce infection. These coatings could be ideal bone regenerative materials, with the added benefit of being a drug delivery system capable of specifically targeting bone disease.

This discovery is subject to a patent application with Isis Innovation, Oxford University’s technology transfer company. Opportunities are still available for companies interested in developing and utilising this technology.

Media Contact

Jennifer Johnson alfa

More Information:

http://www.isis-innovation.com

All latest news from the category: Health and Medicine

This subject area encompasses research and studies in the field of human medicine.

Among the wide-ranging list of topics covered here are anesthesiology, anatomy, surgery, human genetics, hygiene and environmental medicine, internal medicine, neurology, pharmacology, physiology, urology and dental medicine.

Back to home

Comments (0)

Write a comment

Newest articles

Error-Free Quantum Computing Gets Real

For quantum computers to be useful in practice, errors must be detected and corrected. At the University of Innsbruck, Austria, a team of experimental physicists has now implemented a universal…

Most powerful dual-comb spectrometer developed

Scientists from Hamburg and Munich developed the world’s most powerful dual-comb spectrometer that paves the way for many applications in atmospheric science and biomedical diagnostics, such as early cancer detection….

Role of cohesins in embryonic stem cell division

Study shows how meiotic cohesin complexes affect chromosome structure and genomic integrity – and the long-term implications of their effects on the stem cell genome. Chromosomes undergo precise structural changes…

Partners & Sponsors