Cell Adhesion on Polycaprolactone Modified by Plasma Treatment

Table 2

Concentration of different functional groups for various plasma treated samples ( in the case of NH₃ treatment).

	C-C	C-S	C-O; C-N	C=O; O=C-N	O=C-O
Untreated	66.7		18.8		14.5
Treated in O2	54.3		19.2	5.3	21.2
Treated in NH3	78.4		12.1	3.3	6.2
Treated in SO2	67.8	4.3	17.1		10.8