Fig. 4
From: Curvy surface conformal ultra-thin transfer printed Si optoelectronic penetrating microprobe arrays
Deformation of flexible 3D penetrating microprobe array on curvilinear surface. 3D penetrating microprobe array on (a) a concave surface, (b) a convex surface, and (c) a gelatin human brain model. The inset in c is an optical image from different angle of view. (scale bar, 3 mm)
