fig8
Figure 8. Representative fabrication strategies and device architectures for R2R printed and integrated microfluidic biosensors. (A) Schematic of R2R gravure printing for electrochemical sensors, showing the layer-by-layer deposition of functional inks to form electrode arrays on a flexible substrate; (B) Image of the R2R gravure printing system. (A and B) Reproduced with permission[215]. Copyright 2018, American Chemical Society; (C) Illustration of the R2R hot embossing process for the continuous patterning of microfluidic channels on polymer films. Reproduced with permission[216]. Copyright 2020, American Chemical Society. PET: Polyethylene terephthalate; R2R: roll-to-roll.








