Journal of Nanomaterials / 2013 / Article / Fig 2

Research Article

Cationic Gelatin Nanoparticles for Drug Delivery to the Ocular Surface: In Vitro and In Vivo Evaluation

Figure 2

Results of WST-1 assays of human corneal epithelium (HCE) cells after incubation with 2 kinds of gelatin nanoparticles for 2 h. (GP+, GPs with positive surface charge; GP−, GPs with negative charge. Data were analyzed using the Student’s t-test and are presented as mean ± standard deviation (SD); , ).