Fig. 3: PLA and PLGA-Based MNs.
From: Microneedles for controlled and sustained intraocular drug delivery
a Schematic of detachable MN. Reproduced with permission from ref. 42. b Microscope images of cornea after insertion of detachable MN. Reproduced with permission from ref. 42. c Schematic structure and concept of MN with sacrificial layer. Reproduced with permission from ref. 43. d Cryo-sectioned images of MN penetrated the scleral tissue. Reproduced with permission from ref. 43. e OM of bare, Methacrylated hyaluronic acid and PLGA with Rhodamine coated MN. Reproduced with permission from ref. 44. f OM of drug distribution depending on the MNs length of 5 mm (left) 15 mm (right). Reproduced with permission from ref. 44.
