A coated surface for resisting or enhancing bioadhesion includes at least
one patterned polymer including coating layer having a plurality of
features attached to or projected into a base surface. The features each
have at least one microscale (<1 mm) dimension and have at least one
neighboring feature having a substantially different geometry. The
patterned coating layer preferably provides an average roughness factor
(R) of from 4 to 50. The coating layer resists or enhances bioadhesion as
compared to the base surface.