Fig. 5
From: Reversible chromism of spiropyran in the cavity of a flexible coordination cage
Writing self-erasing images in a photoresponsive gel soaked with an inclusion complex. a, Creating an image in a 5⊂4-soaked agarose gel by exposing it to light through a mask (here, featuring the logo of the Weizmann Institute of Science) and b, a photograph of the resulting image. c, A series of images (flags of Somalia, Israel, Honduras, Greece, Scotland, and Finland) created consecutively in the same piece of agarose gel
