Table 2

Release characteristic parameters of release profiles of BSA adsorption on apatite (Ap)-coated citric acid–stabilized cobalt ferrite (CFCA) (CFCA-Ap) particles

pH

Y = ktⁿ; y = M_t/M₀

Y = φ_b(1 - exp(-k_bt)); y = M_t/M₀

K (h^-1)

n

R_c

φ_b

k_b (h^-1)

R_c

4.0

67.215

0.25

0.957

100.00

0.805

0.989

6.5

35.031

0.40

0.883

70.430

0.659

0.974

7.4

22.184

0.30

0.868

35.417

0.605

0.973

φ_b is the fraction of drug released through initial burst

Tang et al. Nanoscale Res Lett 2011 6:19   doi:10.1007/s11671-010-9761-4