PVP Assisted Synthesis of Hydroxyapatite Nanorods with Tunable Aspect Ratio and Bioactivity

Table 1

Different experimental parameters used to optimize the present work.

PVP; (g/L)	(h)	(°C)	Morphology	Aspect ratio
0	12	180	Uniform nanorods	13 ± 3
2	6	150	Nanospheres	—
2	6	180	Short nanorods	7 ± 3
2	12	150	Nanorods and nanoparticles	11 ± 4
2	12	180	Nano- and microrods	30 ± 8
3	6	150	Nanorods and nanoparticles	8 ± 2
3	6	180	Short nanorods	12 ± 3
3	12	150	Short nanorods	15 ± 4
3	12	180	Nonuniform	43 ± 7
4	6	150	Nanorods	25 ± 4
4	6	180	Nanorods	28 ± 3
4	12	180	Uniform nanorods	56 ± 4
4	12	200	Thick and uniform	45 ± 2
4	24	180	Thick and uniform	43 ± 3