Figure 1.

(a) Computer animation of the De-Adhesion Number Investigator (DANI) setup showing the acoustic streaming in the chamber towards the substrate with adhered cells (indicated by the black dots) that is generated by the interdigital transducer (IDT) (gold, comb-like structure) (by courtesy of C. Hohmann, Nanosystems Initiative Munich (NIM)); (b) Schematic drawing of the same setup. The IDT is located on the LiNbO₃ chip inside the polydimethylsiloxane (PDMS)-chamber, which holds the substrate 2 mm above the chip. The fluid flow induced by the SAW is directed towards the cell substrate under an angle of α = 21°.