The Scientific World Journal / 2014 / Article / Tab 6

Research Article

Effect of Gamma Irradiation on Structural and Biological Properties of a PLGA-PEG-Hydroxyapatite Composite

Table 6

Detailed results of alkaline phosphatase activity test (percent of enzyme activity in comparison with control group) for hydroxyapatite, copolymer, and composite under 0, 25, and 50 KGy doses of gamma irradiation in days 3, 7, and 14.

Material Nonirradiated
Percent of enzyme activity in comparison with control group
25 KGy irradiation
Percent of enzyme activity in comparison with control group
50 KGy irradiation
Percent of enzyme activity in comparison with control group
Day 7Day 14Day 7Day 14Day 7Day 14

Hydroxyapatite99.22 ± 4.52130.2 ± 19.8887 ± 12.25105.58 ± 8.5477.77 ± 3.6113.72 ± 1.7
Copolymer60.22 ± 3.6551.76 ± 2.6176.88 ± 2.7264.64 ± 5.6769.44 ± 351.96 ± 6.62
Composite82.88 ± 1.8372.84 ± 2.5281.11 ± 15.2965.5 ± 1.881.88 ± 4.2267.35 ± 13.7