American scientists use a 3D printer to print out kidney prototypes
Release date: 2013-07-17
Scientists at Wake Forest University in Winston-Salem, North Carolina, have used a 3D printer to create a kidney prototype. They are currently using 3D printing technology to create scaffolding for cultivating human cells, creating seemingly realistic facial features including ears and nose.
In several other laboratories, scientists are looking for ways to create scaffolding for the heart, lungs, liver, and kidneys of humans and pigs. Their ultimate goal is to provide patients with tailor-made organ replacements. The Wake Forest University printer does not use deposited ink, but builds the kidney layer by layer with a gel-like biodegradable scaffold that is added to the cell mixture.
Research leader Dr. Anthony Atla is developing this new technology. His experiments with rabbits show that this organ replacement works well. In addition, dozens of patients were in good condition after implantation of an experimental bladder bred with their own cells. At the same time, more than a dozen patients were implanted with urethra made with their own bladder tissue. But Atlas believes that it will take many years to apply the printed organ to the patient.
Atla said that the body parts that have been implanted in the laboratory to date have only a fairly simple structure. The manufacturing process of solid internal organs such as the liver, heart and kidneys is more complicated. But a laboratory at Yale University has used cell replacement technology to make rat lungs. They can be used in these rodents for a while. They are now trying to study pig and human lung scaffolding in the lab.
Source: Kexun
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