Biomimetic systhesis calcite single crystal through the biomembranes

Abstract：Base on the biomineralization model and using Langmuir film of dipalmitoylphosphatidylcholine (DPPC) as template, the polymorph, orientation and morphology of calcium carbonate grown under DPPC Langmuir film were studied by XRD and SEM.The results showed that the oriented single crystals of calcite with (104) face and bigger size of several tens micrometers in length and width under a suitasle surface pressure of DPPC monolayer were obtained.It is found that the Langmuir film is at liquid-condensed phase and has both of better fluidity and stability, is the key of formation of calcite single crystalline with certain face and bigger size.

Keyword：Dipalmitoylphosphatidylcholine;Langmuir film;calcite;oriented growth;