Fig. 1
From: Synthesis of patterned enzyme–metal–organic framework composites by ink-jet printing
a, b Printed patterns formed by ZIF-8 crystals on filter paper, and patterns (approximately 5 cm × 5 cm) are badges of Tsinghua University. SEM images of pure ZIF-8 particles printed on (c, d) filter paper (8 times printing), e PVC film (8 times printing), f PET film (8 times printing), g hydrophilic printing film (1 time printing). h SEM image of ZIF-8 particles grown on PET film printed with protein and a pattern (i) (approximately 5 cm × 3 cm) of a monkey representing lunar year of 2016 formed by ZIF-8 particles grown on PET film printed with protein. Organic ligand 2-MeIM is abbreviated as OL in the figure