A New Application of Lipid Nanoemulsions as Coating Agent, Providing Zero-Order Hydrophilic Drug Release from Tablets

Table 3

Experimental parameters obtained from the kinetics drug release of tablets (B) (see Figure 6). The release speeds reported (𝑑𝑀_𝑡/𝑑𝑡) correspond to the linear diffusion regime.

NE-coating	𝑣=𝑑𝑀𝑡/𝑑𝑡 (10^−5g⋅s^−1)	𝑡𝛼	𝐷/𝑅^2(s^−1)
non-coated	—	19 s	0.011
2 wt.%	38.9	122 s	0.236
5.5 wt.%	7.6	11 min	2.757
6 wt.%	4.2	—	—
7.6 wt.%	3.6	—	—