The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 24, 2014
Filed:
Apr. 11, 2008
Iain R. Gibson, Aberdeen, GB;
Janet M. S. Skakle, Aberdeen, GB;
Daniel J. Hadden, Aberdeen, GB;
Thomas Buckland, Aylesbury, GB;
Iain R. Gibson, Aberdeen, GB;
Janet M. S. Skakle, Aberdeen, GB;
Daniel J. Hadden, Aberdeen, GB;
Thomas Buckland, Aylesbury, GB;
University Court of the University of Aberdeen, Aberdeen Aberdeenshire, GB;
Apatech Limited, Elstree, Herfordshire, GB;
Abstract
The present invention provides a process for the preparation of a silicate and carbonate co-substituted calcium phosphate material. The process comprises the steps of: forming a silicon and optionally carbon-containing calcium phosphate precipitate by an aqueous precipitation method involving preparing an aqueous solution comprising phosphate ions, silicate ions, calcium ions and optionally carbonate ions, wherein the ratio of Ca/P and of Ca/(P+Si) in the solution is maintained above approximately 1.67; and heating the precipitate in an atmosphere comprising carbon and oxygen to form a silicate and carbonate co-substituted calcium phosphate material. The present invention also provides a synthetic carbonate and silicate co-substituted hydroxyapatite material, as well as a biomedical material.