Unique 72-chain cellulose microfibril structure in the secondary cell wall of cotton fibers...Science China Press
Image 2: Under the influence of moisture, the color of the 3D printed beetle changes from green to red, and back again t...Eindhoven University of Technology
Image 4: Treatment with acid makes the crystals in the ink sensitive to moisture....Eindhoven University of Technology
Image 3: Researcher Jeroen Sol with some of the 4D-printed beetles...Eindhoven University of Technology
Figure 1. Schematic diagram of the self-frequency-conversion nanowire laser....Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS
