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. Author manuscript; available in PMC: 2024 Nov 1.
Published in final edited form as: Biomater Adv. 2023 Aug 14;154:213588. doi: 10.1016/j.bioadv.2023.213588

Figure 4. Microparticles demonstrate tube patency.

Figure 4.

(a) Fluorescent microparticles (14 μm diameter) within the Shell alginate solution were readily printed within the tube walls and were exclusively retained there. Image is a 3D reconstruction of a confocal Z-stack, recorded throughout the sample depth. Axis dimensions: x-axis length = 1.27 mm; y-axis length = 1.27 mm; z-axis depth = 0.53 mm. (b) Opaque microparticles (6 μm diameter), doped within the Core (6% PVA) solution were printed within the center of a tube. After printing, microparticle flow out of the tube was recorded (single frame image at time zero; scale bar = 250 μm). (b’) Single greyscale frames at times t1-t4, spanning ~4 sec, show two arbitrary groups of particles (yellow) progressing past a reference point (red line). (Particle flow visible in Movie S1 in SI).