Fig. 5: Signature management and signaling functionalities of TBN- and PTBN-based systems.
From: Octopus-inspired deception and signaling systems from an exceptionally-stable acene variant

A Schematic of a near-infrared signature management system undergoing monitoring during electrical actuation under near-infrared illumination in ambient atmosphere. B Representative spectrally filtered digital camera images of a signature management device before (left) and after (right) electrical actuation with a bias of ~3.2 kV. Note the changes in area and near-infrared contrast for the annulated circle as a result of electrical actuation. C Schematic of a fluorescence signaling system undergoing monitoring during electrical actuation under ultraviolet illumination in ambient atmosphere. D Representative digital camera images of a signaling device before (left) and after (right) electrical actuation with a bias of ~3.2 kV. Note the changes in area and fluorescence signal intensity for the annulated circle as a result of electrical actuation.