Figure 7.

Laser 3D printing of the P(NIPAm-co-NIPMAm)/P3HT6S hydrogel. (a) Schematic representation of the 3D printing of the P(NIPAm-co-NIPMAm)/P3HT6S hydrogel. (b) Schematic representation of the laser printing setup. (c–g) Micrographs of the printed structures: hydrogel structures visualized by optical microscopy (c) and transmission laser microscopy (d). The insets show the magnified views of the printed objects. Scale bars: 50 μm; (e) laser confocal microscopy of single lines printed by scanning the laser used for polymerization along opposite directions, which are highlighted by arrows. Scale bar 10 μm; (f–g) x–y and corresponding x–z view of a laser-printed sample as imaged by z-stack laser confocal microscopy. Scale bar: 10 μm