Table 1.

Correlation coefficient (R²), rate constant (k), and half-life (t_1/2) values obtained by fitting the release data of phytic acid from PTA-CS-MNP nanocomposite into phosphate-buffered saline solution at pH 4.8 and 7.4

Aqueous solution	Saturation release (%)	R2			Pseudo-second order model
		Pseudo-first order model	Pseudo-second order model	Parabolic diffusion	Rate constant, k (mg/min)	t1/2 (min)
pH 7.4	86	0.9832	0.9996	0.8275	1.69×10−5	630
pH 4.8	93	0.9818	0.9980	0.8848	2.86×10−5	339

Abbreviation: PTA-CS-MNP, phytic acid-chitosan-iron oxide nanocomposite.