Donaldson Comapny, Inc.

Blane Scott

Andrew J Dallas

Davis B Moravec

Mikayla A Yoder

Tianheng Zhao

Peter Jackson

Christopher P Conklin

Richard W Janse Van Rensburg

A filter material has a layer of porous material and a plurality of structures disposed on a surface of the layer, where each of the structures has a re-entrant geometry. The plurality of structures may be a plurality of ordered structures. A filter material may include a layer of porous material and a plurality of re-entrant structures disposed on a surface of the layer, each of the re-entrant structures including a stem and a cap, where the caps of adjacent structures are attached to each other to form a plurality of pores, where each pore is disposed between adjacent re-entrant structures.

Structures having re-entrant geometries on a porous material surface

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Cambridge, United Kingdom

Blane Scott