![]() ![]() One of the issues is that these sticky filaments are not easy to handle, and it can be difficult to create a desired structure using this method. This is frequently achieved by printing the bioink as a filament that emerges from the printer nozzle and then stacking the filaments layer-by-layer to form a structure. Typically, the existing process involves printing a sticky bioink consisting of a biomaterial matrix with encapsulated cells suspended within. However, there are many practical and technical hurdles to be overcome before we reach that point. Sticky bioinks can be difficult to handle and print predictably, but this new technique helps to address this issue.īioprinting holds enormous promise as a method to 3D print new tissues or even organs. The new technique involves printing discrete spherical blobs of bioink (as the voxels) within a supportive matrix that then swell to merge together, forming a porous structure. Voxels are 3D cubes that form basic building blocks in computer graphics, similar to what pixels are for 2D, and have been popularized by games such as Minecraft. At the University of Virginia researchers developed a new bioprinting technique based on voxels.
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