Table.

Surfaces Chemical Bonding of S-SCF with or without (PBS) Chi-C Treatment.

	C1s Binding Energy and Relative Area (%)				O1s Binding Energy and Relative Area (%)
Samples	C-C	C-N	O-C-O	O-C=O	N-C=O	O=C-O
S-SCF-PBS	61.6	22.4	12.3	3.7	66.3	33.7
S-SCF-Chi-C7.6%	52.2	30.2	14.9	2.7	49.9	50.1
S-SCF-Chi-C14.5%	56.3	27.5	13.8	2.4	48.7	51.3
S-SCF-Chi-C22.4%	58.5	30.5	7.7	3.3	43.3	56.7

Chi-C, chitosan-catechol; PBS, phosphate-buffered saline; S-SCF, secondary salivary conditioning film.