Surface topographies for non-toxic bioadhesion control

摘要

Disclosed herein is an article that includes a first plurality of spaced features. The spaced features are arranged in a plurality of groupings; the groupings of features include repeat units; the spaced features within a grouping are spaced apart at an average distance of about 1 nanometer to about 500 micrometers; each feature having a surface that is substantially parallel to a surface on a neighboring feature; each feature being separated from its neighboring feature; the groupings of features being arranged with respect to one another so as to define a tortuous pathway. The plurality of spaced features provide the article with an engineered roughness index of about 5 to about 20.

主权项

1. An article having a surface topography for resisting bioadhesions of organisms comprising:
a base surface; a plurality of spaced features; wherein each feature has a surface that is substantially parallel to a surface of a neighboring feature, and wherein each feature has a substantially different geometry than neighboring features; the plurality of spaced features arranged in a plurality of groupings, wherein each grouping has at least three features having a substantially different geometry from each other; the spaced features within each of the groupings being spaced apart at an average distance of about 0.5 micrometers to about 200 micrometers; the adjacent groupings of features being spaced from each other to define an intermediate sinusoidal pathway, wherein neighboring sinusoidal paths converge toward and diverge from each other in a substantially mirror symmetry, further wherein a width of each sinusoidal path as measured between two adjacent groupings is substantially uniform.