Journal: Journal of Biomedical Materials Research. Part a

Article Title: A step toward engineering thick tissues: Distributing microfibers within 3D printed frames

doi: 10.1002/jbm.a.36838

Figure Lengend Snippet: Bulk and cell‐scale mechanical characterization of hierarchical scaffolds. (a) Top‐down view of a completed hierarchical scaffold (Scale bar is 5 mm). (b) Young's modulus of 3D printed PLA struts with or without E1001 (1k) airbrushed fibers ( n = 3 ± SD) and tensile modulus of airbrushed and electrospun E1001 (1k) fiber mats, (c) Atomic Force Microscopy (AFM) modulus map of airbrushed E1001 (1k) fibers (Scale bar is 0.16 mm)

Article Snippet: Scaffolds were printed using a commercial fused deposition modeling style 3D printer (Makerbot Replicator 2, Makerbot) and commercial 1.75 mm PLA filament (Makerbot PLA Filament, Makerbot) at 215°C or PCL at 110°C (Makerbot Flexible Filament, Makerbot).

Techniques: Microscopy

Journal: Polymer

Article Title: Effect of processing conditions on crystallization kinetics during materials extrusion additive manufacturing

doi: 10.1016/j.polymer.2018.09.018

Figure Lengend Snippet: Raman spectra of polycaprolactone extrudate and the basis spectra fits at the indicated distances from the extruder nozzle. The colored filled points indicate the raw data, the black line indicates the total fit, the blue line indicates the crystalline basis spectrum, and the grey lines indicate the dipole-dipole and amorphous basis spectra for each measurement. The colored open points beneath each spectrum indicate the residual for each fit. All spectra are normalized by the total integrated intensity in the C=O stretch region.

Article Snippet: The polycaprolactone used in these experiments was purchased in filament form (Flexible Filament, Makerbot) with a diameter of 1.75 mm and used as received (see Disclaimer).

Techniques: