Surface modification of fused deposition modeling ABS to enable rapid prototyping of biomedical microdevices

Interface design of environmentally friendly carbon nanotube-filled polyester composites: Fabrication, characterisation, functionality and application

“…The thermal and mechanical properties, antibacterial activity, electrical conductivity and antistatic properties of the composites were evaluated. A functional 3D printing filament was made by extrusion; no toxic substances were released during printing, thereby protecting the local workspace and the environment [28,29]. For the development of MWCNT-containing polymer nanocomposites for 3D printing, some recent works on electrically conducting 3D printing thermoplastic materials incorporating CNTs had been proposed [30,31].…”

A low volume 3D-printed temperature-controllable cuvette for UV visible spectroscopy

“…Secondly, at printed vertices in the horizontal and vertical planes, sagging of the horizontal printed surface resulted in small voids, which leak. As noted, small defects can be fused using organic solvents [13], however bigger defects at vertices require carefully designed 3D-prints. A key design feature of our cuvette, which prevented sagging in the horizontal plane, was the inclusion of an inverted pyramid structure beneath the sample chamber, as noted in Figure 1B.…”

“…Strategies for solving this leakage problem differ, one approach is to construct devices with increased wall thicknesses, typically 4 mm [3], although this does impose a lower limit on the size of device that can be constructed. Alternatively, recent work [13] has shown that many of these printing imperfections in ABS prints can be removed with acetone and that 3D-prints treated in this way, post production, have potential uses in fluid handling on a variety of scales.Here we report our recent success using FDM 3D-printing to develop an inexpensive water heated UV visible cuvette made from ABS or PLA, which fits into a standard UV visible spectrometer.UV visible spectroscopy was performed on a dual beam Shimadzu Corporation UV-2410PC spectrometer equipped with a single monochromator. BRAND® disposable polystyrene cuvettes (Sigma-Aldrich UK) were used for control studies.…”

“…Strategies for solving this leakage problem differ, one approach is to construct devices with increased wall thicknesses, typically 4 mm [3], although this does impose a lower limit on the size of device that can be constructed. Alternatively, recent work [13] has shown that many of these printing imperfections in ABS prints can be removed with acetone and that 3D-prints treated in this way, post production, have potential uses in fluid handling on a variety of scales.…”

Thermal simulations and measurements for rapid tool inserts in injection molding applications

“…chemical post-treatment or the infiltration of FDM parts to fill the pores within the part [29]. In addition to environmental and health risks, sealant cost, post-processing costs, possible problems of aesthetics, or, in the case of epoxies, a not negligible change of dimensions also need to be taken into consideration [30].…”