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:
Mar. 08, 2022
Filed:
Jul. 24, 2019
Applicant:
Howard University, Washington, DC (US);
Inventors:
Tongxin Wang, Berwyn Heights, MD (US);
James W. Mitchell, Durham, NC (US);
Assignee:
HOWARD UNIVERSITY, Washington, DC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/32 (2006.01); A61L 27/12 (2006.01); A61L 27/18 (2006.01); A61L 27/58 (2006.01);
U.S. Cl.
CPC ...
C08K 3/32 (2013.01); A61L 27/12 (2013.01); A61L 27/18 (2013.01); A61L 27/58 (2013.01); A61L 2430/02 (2013.01); C08K 2003/325 (2013.01);
Abstract
A method is provided for synthesizing PLA/apatite composites with improved mechanical strength. In one aspect, a calcium-phosphate/phosphonate hybrid shell is developed to incorporate more reactive hydroxyl groups onto hydroxyapatite (HA) particles. PLA is covalently bonded to HA calcium phosphate hybrid shell, creating a strong interphase between HA and PLA, thus significantly improve the mechanical strength in comparison to that of non-modified HA.