Fig. 5: Drug delivery using MCLs.

a (i) Schematic illustration of the magnetic micropump integrated with the contact lens, (ii) The status of the micropump and drug release under no actuation and actuation of magnetic field pulse, (iii) The sequential images showing the drug release under actuation, (iv) The quantitative evaluation of the drug release according to the strength of the magnetic field strength, Reproduced with permission from Springer Nature (2020)⁸³. b (i) Schematic of contact lens with embedded microtubes and illustration of IOP triggered drug release, (ii) simulation results of the stress distribution on the contact lens with microtubes, iii) drug released profile from stretched devices and unstretched devices over time, Reproduced with permission from American Chemical Society (2020)⁸⁵. c (i) Schematic illustration of drug release by the blinking pressure, (ii) illustration of the architecture of the microfluidic chip, and (iii) Photographs of the flat microfluidic chip (scale bar: 2 mm) and enlarged view (scale bar: 300 μm). Reproduced with permission from American Chemical Society (2022)⁸⁷