Construction of a stereocomplex between poly(<scp>d</scp>-lactide) grafted hydroxyapatite and poly(<scp>l</scp>-lactide): toward a bioactive composite scaffold with enhanced interfacial bonding

Abstract

an intertwined spiral structure ascribed to their antiparallel and complementary configuration under the action of hydrogen bonding. Consequently, the tensile strength and modulus of the PLLA/g-HAP scaffold increased by 86% and 69%, respectively, compared to those of the PLLA/HAP scaffold. In addition, the scaffold displayed good bioactivity by inducing apatite nucleation and deposition and possessed good cytocompatibility for cell adhesion, growth and proliferation.