Fig. 7: Demonstrated models for applying the responsive coating in 2D/3D-coupling multistage anti-counterfeiting label.
From: Self-growth of programmable 2D- and 3D-coupling responsive coating for anti-counterfeiting
a Schematic diagram and corresponding photographs of 2D/3D dual-mode coupling information encryption by stimulating with UV (365, 2.8 mW/cm2, 10 min), Vis. (525, 1.34 mW/cm2, 12 min), heat (T1: 30 °C, 5 min; T2: 45 °C, 5 min), and force. The scale bar is 0.5 cm. b Anti-counterfeiting label application design model and optical photos. The scale bar is 0.5 cm. c Schematic illustration of the unfolding of lotus petals in response to temperature and the corresponding photographs (T0: 20 °C, 5 min; T1: 30 °C, 5 min; T2: 45 °C, 5 min). The scale bar is 0.5 cm.
