A possibility of the single-crystal nanotube apatite

本研究的目的是制备单晶磷灰石纳米管，并将其作为生物相容性材料应用。采用湿法磷灰石合成仪进行了实验。我们使用磷酸铵，并在用氨溶液调节pH后滴下碳酸钙。在合成实验的后半部分，我们在溶液中加入氟化氢以提高结晶度。将合成晶体浸泡在乳酸中，使纳米空间的缝隙进入晶体中心。通过透射电镜观察浸渍后的晶体，观察到中心孔洞空空如也的棒状磷灰石。晶体的c轴截面为原始六边形，在晶体中心观察到一个孔径。我们可以用上述方法制备管状单晶磷灰石。

The purpose of this study makes single-crystal nanotube apatite and to apply as biocompatible material. An apatite synthesizer of the wet process was used for an experiment. We used ammonium phosphate and dropped calcium carbonate after having regulated pH with an ammonia solution. We added hydrogen fluoride in solution to improve crystallinity in the latter half of the synthetic experiment. The synthetic crystal was immersed in the lactic acid to empty the aperture of the nanospace into the crystal center.The stick apatite that the aperture was vacant in the center was observed when we observed crystal after the immersion by a transmission electron microscope. The c-axis section of the crystal was original hexagon, and an aperture was observed in the crystal center. We were able to make tube-shaped single-crystal apatite by the method mentioned above.