ibusinesslines.com
ibusinesslines.com August 17, 2018


Scientists create first 3D printed human corneas

02 June 2018, 08:14 | Melissa Porter

NCJ MEDIA JOHN MILLARDThe scientists developed a low-cost bio-ink based on stem cells from healthy eyes

Science news 3D printed organs cornea

Researchers at Newcastle University have figured out how to 3D-print a replacement cornea in just 10 minutes using a standard 3D printer.

It's another marvel of three-dimensional printing, using stem cells, collagen, and a type of polysaccharide called alginate to create a so-called "bio-ink" that can be used to print a cornea.

The cornea is a vital part of human vision; it acts as the transparent outer layer of the eyeball, refracting and bending light in order to focus eyesight.

Another 5 million people already suffer total blindness from corneal scarring caused by burns, lacerations, abrasion or disease, the researchers added.

There, researchers mixed stem cells from the cornea of a healthy donor with collagen and algae molecules to create a bio-ink, which they 3D-printed into an artificial cornea. Connon said in a statement that the printed corneas will have to undergo several years of testing before they become a viable transplant option.


For the first time in history, scientists have 3D printed human corneas, Science Daily reports.

"Many teams across the world have been chasing the ideal bio-ink to make this process feasible", study co-author Professor Che Connon said in a statement. Human corneas are now in short supply. Prof. Connon noted that there is a shortage of human corneas available for transplant around the world. It prints out layers of "bio-ink", building them up in concentric circles, to form a cornea-shaped scaffolding. But this research is a validation that you can 3D print something that looks like a cornea and contains mostly the same ingredients. However, there has been a significant shortage of corneas available for transplant in recent years. According to the World Health Organisation, corneal blindness is the fourth leading cause of blindness globally, so it's pretty worrying to note there's now a transplant shortage in the UK. From this test, they were able to identify a process that allowed cells to grow within a bioink solution. Connon adds that they are not alone in their research, with many teams now engaged in creating bio-inks for creating 3D printed corneas.

The incredibly freakish achievement was revealed to the word in the science journal Experimental Eye Research.

It appears that this stem cell bioink was 3D printed on the Inkredible 3D printer by CELLINK, which is known as the first bioprinter with clean chamber technology.



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