j wool k silk l regenerated cellulose fiber rayon viscose lyocell m polylactic acid a polyester fiber of denier range 0 5 micron to 13 dpf and length range 3 mm to 24 mm b nylon 6 fiber of denier range 0 5 micron to 6 dpf and length range 3 mm to 24 mm c nylon 66 fiber of denier range 0 5 micron to 22 dpf and length range 3 mm to 24 mm a fibrillated polymer fiber b fibrillated modified cellulose fiber c fibrillated cellulose fiber d fibrillated lyocell fiber e fibrillated polyethylene and polypropylene f fibrillated polyolephin fiber g fibrillated acrylic and polyacrylonitrile fiber h fibrillated poly p phenylene 2 6 bezobisoxazole pbo fiber i fibrillated polyvinyl alcohol pva j fibrillated concrete k fibrillated kevlar aramid pulp a a glass with fiber diameters ranging from 0 2 5 5 microns b b glass with fiber diameters ranging from 0 2 5 5 microns c c glass with fiber diameters ranging from 0 2 5 5 microns d e glass with fiber diameters ranging from 0 2 5 5 microns a nanoceramic or nanoglass containing fibers b porous or nonporous microparticulate or microspherical silica untreated fumed and or chemically modified to have functional groups from the linear alkyl trimethyl alkylcarbamate cyclohexyl phenyl diphenyl dimethylamino amino nitro nitrile oxypropionitrile vic hydroxyl fluoroalkyl polycaprolactam polyethoxylate traditional hydrophobe and hydrophile ion exchange and reverse phase families c porous or nonporous microparticulate or microspherical alumina untreated fumed and or chemically modified to have functional groups from the linear alkyl.