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Table 1 Various physical parameters of the granules of the three putty samples studied

From: Early new bone formation in ovine intramuscular defects: comparison between different silicate-containing calcium phosphate synthetic bone grafts

 

nano-Si-Ap

nano-SiO2-HA

micro-Si-CaP

Putty compositiona

wt% of granules

30%

32%

41%

wt% of poloxamer gel carrier

70%

68%

59%

Mean granule size (mm)b

2.8

1.3

2.1

Crystallite size (nm)c

29.9

22.7

N/A*

Surface area (m2/g)d

26

186

0.2#

  1. adetermined by mass loss after removal of poloxamer carrier in ice cold water
  2. bdetermined from SEM images
  3. cdetermined from XRD data
  4. ddetermined from BET method from nitrogen adsorption measurements
  5. *peak width was too narrow to determine a crystallite size
  6. #surface area could only be determined by single point determination at 0.1994
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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X