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

Figure 3

Optical microscope images of cantilevers with widths of 100 μm. Ten drops of E. coli suspension (2.49×10⁸ cells/mL) were deposited at different positions on the cantilevers. (a) Cantilever array was incubated at growth conditions before image was taken. (b) Array was incubated at growth conditions then glutaraldehyde fixation (see Materials and Methods section) of the sample was carried out. (c) Array was dried at room conditions after deposition of cells (nongrowth control) (d) Array was prepared as a nongrowth control, then glutaraldehyde fixation was carried out.

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(b)

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