Optical Microscopy: All printed structures were inspected under op�cal microscopes with transmited light. A Leica DM2700 M (Leica Microsystems) or an Axio Imager Z1 (Carl Zeiss AG), which were run with the analy�cal microscope so�ware LAS X or ZEN, respec�vely, were used. For polarized images, samples were placed between crossed polarizers in both cases.