Abstract
In this work, we first investigated the effect of fructose 1,6-bisphosphate, which is fructose sugar phosphorylated on carbons 1 and 6, on the biomineralization of calcium carbonate, and prepared calcium carbonate/fructose 1,6-bisphosphate (CC/FBP) composite nanospheres. Then, we investigated the transformation of CC/FBP composite nanospheres under microwave-assisted hydrothermal conditions and prepared carbonated hydroxyapatite (CHA) porous nanospheres. We found that FBP has a unique effect on the morphology and crystallization of calcium carbonate. FBP can control the morphology of calcium carbonate and provide the phosphorus source for the formation of CHA. The morphology and size of CC/FBP composite nanospheres can be preserved after transformation to CHA porous nanospheres under microwave-assisted hydrothermal conditions. The CC/FBP composite nanospheres and CHA porous nanospheres are efficient for anticancer drug (docetaxel) loading and release, and the drug delivery system shows a high ability to damage tumor cells, and thus is promising for application in drug delivery. The as-prepared CC/FBP composite nanospheres and CHA porous nanospheres have excellent biocompatibility and high protein adsorption capacity, as well as high efficiency for gene transfection.
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