Graphene Oxide-Gallic Acid Nanodelivery System for Cancer Therapy

Table 1 Correlation coefficients (R ²), rate constant (k), and half-time (t _1/2) obtained by fitting the GA release data from the GOGA nanocomposite into phosphate-buffered solution at pH 7.4

Aqueous solution	Saturated release (%)	R ²					Rate constant (k)^a (mg/min)	t _1/2 ^a (min)
Aqueous solution	Saturated release (%)	Pseudo-first order	Pseudo-second order	Parabolic diffusion	Higuchi model	Korsmeyer-peppas model	Rate constant (k)^a (mg/min)	t _1/2 ^a (min)
pH 7.4	83.1	0.3294	0.9832	0.9550	0.9550	0.9785	2.42 × 10⁻⁴	203