Table 2.

Elemental composition of untreated and plasma-coated leather samples.

Element	Leather Samples
	CC-0	CC-3	CC-6	CC-12
C	75.52	84.09	74.20	70.44
O	20.41	8.94	13.26	13.63
N	3.12	0.00	0.00	0.00
Si	0.95	6.98	12.57	15.92
Si/C	0.01	0.08	0.17	0.23
Si/O	0.05	0.78	0.95	1.17