Fig. 3From: Liquid Crystalline Nanoparticles as an Ophthalmic Delivery System for Tetrandrine: Development, Characterization, and In Vitro and In Vivo EvaluationPhotograph of TET-LCNPs taken using transmission electron micrograph. After diluting the samples 100-fold with purified water, one drop of the LCNP suspension was deposited onto a 300-mesh carbon-coated copper grid, and the LCNPs were allowed to settle for 3–5 min. The excess fluid was removed using absorbent paper, and the samples were then visualized using a transmission electron microscopeBack to article page