|About this Abstract
||2011 TMS Annual Meeting & Exhibition
||Surfaces and Heterostructures at Nano- or Micro-Scale and Their Characterization, Properties, and Applications
||Precipitation and Crystallization of Hydroxyapatite on Boron Nitride Nanotubes Immersed in Simulated Body Fluid
||Debrupa Lahiri, Virendra Singh, Anup Kumar Keshri, Sudipta Seal, Arvind Agarwal
|On-Site Speaker (Planned)
Success of Boron Nitride Nanotubes (BNNT) as reinforcement in orthopedic implant/scaffold or structural mimic of collagen in bone repair depends on mineralization and integration of hydroxyapatite (HA) on BNNT surface to form an integrated bone-like structure. Present study investigates precipitation and crystallization-ability of HA on BNNT, immersed in simulated body fluid (SBF) for 7, 14 and 28 days. Presence of phosphate peak of HA in Raman Spectrum proves the formation of HA precipitate on BNNTs immersed in SBF. The SEM and EDS results reveal linear increase in calcium content on BNNT between 7 -28 days. The quantitative EDS results suggest an initial threshold period for starting the precipitation. HRTEM study shows amorphous HA covering the BNNT surface initially (7 days), which forms well defined crystal structure with increasing time (28 days). Analysis of lattice images at interface provides further insight into the crystallographic arrangement of HA crystals on BNNT surface.
||Planned: A CD-only volume