Improving Osteogenesis Activity on BMP-2-Immobilized PCL Fibers Modified by the γ-Ray Irradiation Technique

Table 1

Surface elemental compositions of PCL, AAc-PCL, BMP-2/PCL, and BMP-2/AAc-PCL.

	C1s (%)	N1s (%)	O1s (%)
PCL	77.79	—	22.21
AAc/PCL	73.3	0.65	26.05
BMP-2/PCL	75.13	2.42	22.45
BMP-2/AAc/PCL	71.11	1.28	27.61