Another breakthrough in 3D printing technology?
The recent breakthrough in the field of stem cell technology is that, for the first time, researchers developed a customized low-cost
3D printer to print electronics on a real hand. This technology could be used
by soldiers on the battlefield to print temporary sensors on their bodies to
detect chemical or biological agents or solar cells to charge essential
electronics which will be one of the driving factors. Researchers also successfully
printed biological cells on the skin wound of a mouse where the principle of
the technique lies in developing new medical treatments for wound healing and
direct printing of grafts for skin disorders.
One of the major advancement of the new 3D-printing
technique is that this printer can adjust to small movements of the body during
printing. The skin is scanned by placing temporary markers on the skin. The
printer uses computer vision to adjust to movements in real-time. This
3D-printing technique also includes a rare feature where it uses a specialized
ink that is composed of silver flakes which can conduct current at room
temperature and also cure the wound. This makes the 3D-print different from
other 3D-printing inks that need to cure at high temperatures (up to 100
degrees Celsius or 212 degrees Fahrenheit) which will obviously burn the hand.
To remove the electronics, the person can use a simple method by peeling off
the electronic device with tweezers or wash it off with water. The new
3D-printing technique paves the way for many other applications, where some of
the skin diseases can be cured by printing the cells on the damaged part.
Researchers also successfully developed a bio ink to
print cells on a mouse skin wound, which could lead to advanced medical
treatments for those with skin diseases.
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