| abstract |
A syringe is provided having a barrel and a plunger, the barrel having an inner surface and the plunger having a side surface engaging the barrel inner surface, wherein at least one of the barrel inner surface and the plunger side surface serves as substrate which is coated with a lubricity layer; wherein the lubricity layer comprises a layer of Si w O x C y H z or Si w N x C y H z , where w is 1, x is from about 0.5 to 2.4, y is from about 0.6 to about 3, and z is from 2 to about 9; wherein the surface of the lubricity layer has a lower plunger sliding force or breakout force than the untreated substrate. |