Figure 8.
Potential applications for biosensors. (A) A new bioprinting method with functionalized bioink with oxygen-sensing nanoparticles. (B) Viability of the microalga Chlorella sorokiniana and cell line during incubation in 3D-bioprinted structure containing oxygen sensor nanoparticles. (C) Structural image of 3D-bioprinted constructs with the two different layers and images of oxygen concentrations according to time-dependent illumination. (D) Spatiotemporal dynamics of oxygen concentrations in a multilayered 3D construct with sensor nanoparticles only, nanoparticles + microalga, as well as cell line. (Figures A, B, C, and D reproduced with permission from Trampe et al.[123]; copyright 2018, John Wiley and Sons). (E) Exploded view of the patch showing all the components necessary for fabrication processes. (F) The gross images and scanning electron microscope image of fabricated patch with polydimethylsiloxane (PDMS) containing 20 wt% of SiO2 NPs and Ag and single-walled carbon nanotubes electrodes.