MONODISPERSED ORGANIC MONOLAYER COATED CALCIUM-CONTAINING NANOPARTICLES

摘要

A method for the synthesis of monodispersed, organic-monolayer coated, calcium-containing nanoparticles is presented. A biphasic liquid system comprises an aqueous phase of bare particles and an organic phase containing organic molecules with carboxylic acid end group is mixed. The carboxylic acid group binds to the surface of the calcium-containing particles and the particles are coated with a monolayer of organic molecules. The exposed surface of the coated particles is more hydrophobic than the surface of the bare particle and the particles are extracted to the organic phase. The process changes the geometry of the particles and decreases the size distribution in a population of particles.