Abstract
Organic polymer-hydroxyapatite (HAp) composites are much attractive due to the advantages of low Young's modulus and ability of bone-bonding, i.e. bioactivity. Cellulose (CEL) is one of abundant natural polymers and exhibits biological compatibility and high chemical durability. In the present study, CEL-HAp composites were prepared through mechanochemical reaction and the subsequent aging. The prepared composites contained needle-like low-crystalline HAp crystals with carbonate ions. The composites formed apatite on their surfaces after soaking in simulated body fluid (SBF) for 7 d. The composites are therefore expected to be useful bone-repairing materials with low Young's modulus and bioactivity.
