Fig. 1
CaCO3 powder-mediated controlled biomineralization of ANSs. (A) The Ca2+ generation from CaCO3 powder in various pH aqueous solutions. (B) Surface zeta potential of ANSs at different pH ranges. (C) The Ca2+ generation from CaCO3 powder in various pH of ANSs solutions. (D) Representative transmission electron microscopy (TEM) and particle size distribution of BANSs at different pH ranges. Scale bars: 0.1 μm. (E) Schematic drawings comparing surface zeta potential of ANSs and Ca2+ generation from CaCO3 powder in various pH aqueous solutions