Fig. 2.
High-density, single-cell array on the stretchable traps. (A) Fluorescence image (4× magnification) of trapped Ba/F3 cells on the array stained with Oregon Green 488 carboxylic acid diacetate. (B) Zoomed in view of a small region of the fluorescence image seen in “A”. (C) Confocal microscope image of a trapped Oregon-green-488-stained Ba/F3 cell on the array. The blue color is due to the reflection from the PDMS membrane. (D) SEM image of trapped cells on the array. Scale bar = 20 μm.