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3D bioprinting begins with a layer-by-layer model structure recreated from a bioink, combined with living cells, or seeded with cells after completion of the printing.
Fremont, CA: 3D Bioprinting, also referred to as bioinks, is a method of additive manufacturing that uses cells and other biocompatible materials as ‘inks’ to layer-by-layer print living structures that mimic the behavior of natural living systems.
Bioprinted structures such as an organ-on-a-chip can be used in 3D to examine the functions of a human body outside the body (in Vitro). A 3D bioprinted structure’s geometry is more analogous to that of a naturally occurring biological system than an in vitro analysis conducted in 2D. Forming a new organ could be more biologically important. In the fields of tissue engineering, bioengineering, and materials science, it is most frequently used.
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For pharmaceutical production and drug validation, 3D bioprinting has been increasingly utilized. It will soon be used in clinical settings for medical applications such as 3D printed skin grafts, bone grafts, implants, biomedical devices, and even full 3D printed organs, all of which are active research subjects in bioprinting.
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3D bioprinting begins with a layer-by-layer model structure recreated from a bioink, combined with living cells, or seeded with cells after completion of the printing. An MRI or CT scan, a computer-generated design (CAD) program, or a file downloaded from the internet can come from anywhere.
That model file is then loaded into a slicer, a computer program that studies the model’s geometry and creates a series of thin layers or slices. When stacked vertically, it forms the shape of the original model.
The slices are converted into path data if a model is cut and stored as a g-code file sent for printing to a 3D bioprinter. This bioprinter follows the directions in order in the g-code format. It includes instructions for controlling the temperature of the extruders, the temperature of the bedplate, extrusion pressure, strength and frequency of crosslinking, and the slicer-generated 3D movement direction. After all the g-codes commands are finished, the print is completed and can be cultured or integrated with cells as part of a biostudy.
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