Figure 4
From: Nanostraw membrane stamping for direct delivery of molecules into adhesive cells
Calcein delivery into NIH-3T3 cells with Au nanostraw stamping. (a) Photograph of Au nanostraw stamping system for precise x-y-z manipulation. (b) Schematic illustration of stamping area using Au nanostraw membrane on the cell-cultured dish. (c,d) Optical (c) and fluorescence (d) images at the edge of stamped and unstamped areas.
