Figure 4From: In vitro performance of lipid-PLGA hybrid nanoparticles as an antigen delivery system: lipid composition mattersRelease of KLH contained in NPs in 10% human serum (pH 7.4) at 37°C. All NPs exhibited a prolonged release of KLH. PK NPs showed a burst release of KLH between 8 and 10 h. LPK displayed a delayed release profile, in which the largest percentage release occurred between 16 and 24 h. The extent of release was also dependent on the composition and charge of the NPs.Back to article page