Table 1.

Various parameters of uncoupled and coupled SLNs bearing rifampicin

S. No.	Formulation	Particle size (nm)	PDI	Zeta potential (mV)	Entrapment efficiency (%)	Coupling efficiency (%)
1	Uncoupled SLNs	235 ± 2	0.076	22 ± 1	73.4 ± 3	Nil
2	Lactoferrin-coupled SLNs	271 ± 2	0.124	23 ± 2	68.4 ± 2	22.7

Mean (n = 3) ± SD