prov:value
| - The invention selective gels can be formed of almost any patterned or protruded structures as represented in the FIGS. 1 a???3 j, 4 o, 4 t, 5 d???5 g, 5 j, 5L, 6 a, 6 h, 11 b, 11 c, 12 c, 15 a???15 k, 15 m, 15 n such as a matrix or array of grooves, stems, tips, wedges, points, angular corners edges or sides and the like.
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