Table 7: Effect of drug loading on zeta potential and EE of CSNs.

CS : TPP weight ratioZeta potential (mV) EE of CSNs
DRZ loading (50%)Blank CSNs

6 : 1
5 : 1
4 : 1

Values are expressed as mean ± standard deviation, .
CS: chitosan; TPP: tripolyphosphate; EE: entrapment efficiency; NPs: nanoparticles; CSNs: chitosan nanoparticles.