Ink-Jet Printing: Perfect Tool for Cantilever Array Sensor Preparation for Microbial Growth Detection

Figure 2

(a) SEM images of capillary-coated cantilevers for full (top), half (medium), and 1/5 (bottom) immersion in E. coli suspension. (b) Ten drops of E. coli suspension were deposited at different positions along the cantilevers’ longitudinal axis. Cantilever arrays in images (a) and (b) were incubated for 24 h at optimal growth conditions before SEM imaging. The width of the cantilevers is 100 μm. The used suspension (2.49×10⁸ cells/mL) was prepared in 10% LB. (c) SEM image showing accumulation of E. coli cells at the front end of capillary tube after functionalisation. Scale bar 10 μm.

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