Structural implant for bone repair
AssigneeRutgers, The State University of New Jersey
InventorsRichard E. Riman, Berra Beyoglu Siglam, Joachim B. Kohn, Yong Mao
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Abstract
Disclosed are composite materials comprising a porous, carbonated, calcium silicate ceramic having a microstructure comprising interconnected open pores; where the calcium silicate surface defining the pores is partially or completely coated with an amorphous silica layer, and the silica coating comprises an overlayer of calcium carbonate crystals; where the silica coating and calcium carbonate overlayer form a network that interconnects throughout the ceramic microstructure, but do not completely occlude the pores. Also disclosed are methods of forming such composite materials.
Claims19
A composite material comprising:
- a porous, carbonated, calcium silicate ceramic having a microstructure comprising interconnected open pores;
- wherein the calcium silicate surface defining said pores is partially or completely coated with an amorphous silica layer, and said silica coating comprises an overlayer of calcium carbonate crystals;
- wherein said silica coating and said calcium carbonate overlayer form a network that interconnects throughout said ceramic microstructure, but does not completely occlude said pores;
- and
- wherein the composite material is in the form of a scaffold for implantation in vivo.
A composite material comprising:
- a porous, carbonated, calcium silicate ceramic having a microstructure comprising interconnected open pores;
- wherein the calcium silicate surface defining said pores is partially or completely coated with an amorphous silica layer, and said silica coating comprises an overlayer of calcium carbonate crystals;
- wherein said silica coating and said calcium carbonate overlayer form a network that interconnects throughout said ceramic microstructure, but does not completely occlude said pores;
- and
- wherein the amorphous silica layer comprises a calcium gradient.
Dependencies are inferred from the claim text.