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Surface topographies for non-toxic bioadhesion control

  • US 7,650,848 B2
  • Filed: 12/05/2006
  • Issued: 01/26/2010
  • Est. Priority Date: 02/17/2004
  • Status: Expired due to Term
First Claim
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1. 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, each feature further having at least one neighboring feature having a substantially different geometry,wherein an average first feature spacing between adjacent ones of said features is between 10 μ

    m and 100 μ

    m in at least a portion of said surface,wherein said plurality of repeated patterns is separated by a pathway that is sinusoidal in shape.

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