News Finding: In the presence of strong light attenuation, the solidification front initiates at the surface upon illumination and propagates toward the liquid side as the irradiation time increases.
Paper Finding: In the presence of strong light attenuation, the solidification front initiates at the surface upon illumination and propagates toward the liquid side as the irradiation time increases.
News Context: "The technique is very simple." In the presence of strong light attenuation, the solidification front initiates at the surface upon illumination and propagates toward the liquid side as the irradiation time increases. The researchers used poly(ethylene glycol) diacrylate in this demonstration, but the technique should work with a broad range of photocurable polymers.
Paper Context: The degree of bending can be controlled by adjusting the gray scale and the irradiation time, an easy approach for creating origami structures. In the presence of strong light attenuation, the solidification front initiates at the surface upon illumination and propagates toward the liquid side as the irradiation time increases. Here, we show that, without cumbersome processing steps, origami structures can be created using the FPP method with conventional photocurable polymers, and the origami process is almost spontaneous instead of a response to external stimulus.