Cationic, anionic and non-ionic surfactants were explored on Compritol based SLNs.
Properties of drug-loaded SLNs are influenced by the surfactant composition.
Mixed surfactant-SLNs show superior stability due to enhanced drug incorporation.
Mixed surfactant-SLNs show high cell internalization ability and low cytotoxicity.
Charges, bulkiness of the non-ionic surfactant and ion-pairing effects play a role.