8.4.4 Characteristics of Porous Materials for Selected Applications Device Function Pore Geometry/ Purpose Tissue Cell Process(es)Size(um) Orientation Facilitate dermal regeneration/ 3-D)Isotopic or Prevent contraction Dermis Fibroblast Contraction20-120 planar isotropic(?) Facilitate nerve regeneration/Axon elongated Nerve Nerve Migration 1-10 Uniaxial Attachment of bone/Bone Bone Osteoblast Mitosis 100-600 Isotropic ingrowth Synthesism 8.4.4 Characteristics of Porous Materials for Selected Applications Device Function/ Purpose Tissue Cell Cell Process(es) Pore Size (mm) Pore Geometry/ Orientation Facilitate dermal regeneration/ Prevent contraction Dermis Fibroblast Contraction 20-120 (3-D) Isotopic or planar isotropic (?) Facilitate nerve regeneration/Axon elongation Nerve Nerve Migration 1-10 Uniaxial Attachment of prosthesis to bone/Bone ingrowth Bone Osteoblast Mitosis Synthesis 100-600 Isotropic