Table 2.

The linear regression coefficient (R²) values for different kinetic models of atenolol release from various niosome formulations.

Release model	Zero order	First order	Korsmeyer-Peppas		Hixson-Crowell
	R2	R2	R2	n	R2
SP20-A	0.6439	0.1385	0.9763	0.1852	0.3382
SP20-B	0.8063	0.1496	0.9768	0.2675	0.4467
SP80-A	0.7064	0.1424	0.9740	0.2091	0.3742
SP80-B	0.6803	0.1487	0.9706	0.2411	0.4073
SP85-A	0.7060	0.1316	0.9676	0.1389	0.2614
SP85-B	0.6614	0.1407	0.9709	0.1945	0.3528
T85-A	0.6052	0.1429	0.9506	0.2042	0.3572
T85-B	0.6800	0.1598	0.9528	0.2773	0.4538