Surface topographies for non-toxic bioadhesion control

An article having a surface topography for resisting bioadhesion of organisms, comprising:

• a base article having a surface,
• wherein a composition of said surface comprises a polymer,
• wherein said surface has a topography comprising a plurality of repeated patterns, each pattern being defined by a plurality of spaced apart features attached to or projected into said base article, each feature being a single elongate structure extending longitudinally along the surface of the base article,
• said plurality of features each having at least one microscale dimension and, each feature further having at least one neighboring feature having a substantially different geometry,
• wherein a first feature spacing between adjacent ones of said features is between 0.5 μm and 200 μm in at least a portion of said surface, a pathway situated on the base article between adjacent ones of said plurality of repeated patterns, said pathway being sinusoidal in shape.