Fig. 2From: Fabrication of 3D-printed hygromorphs based on different cellulosic fillersa Illustration of an axial AC25% hygromorph after water-immersion for 2 min. b Example for the evaluation of the actuation of a 3D-printed after storage in a climate chamber at RH = 75%. The green horizontal line represents the position of the bilayer prior to the change in humidity at RH = 30%Back to article page