Print 7 comment(s) - last by inperfectdarkn.. on Nov 28 at 2:24 AM

The end result were square constructs with a 10cm diagonal and 0.4mm thickness

A new hybrid printer is capable of printing three-dimensional tissue for implantable cartilage.

A team of researchers from the Wake Forest Institute for Regenerative Medicine, led by James Yoo, M.D., created a printer that can make cartilage for patients who need it.

The printer is capable of doing this by combining an electrospinning machine and an ink jet printer. Mats of electrospun synthetic polymer were mixed layer by layer with the solution of cartilage cells from a rabbit ear. These cells were applied using the ink jet printer.

The electrospinning machine used an electrical current to create fine fibres from the polymer solution, and polymer with porous structures were made. These porous structures allow for cell growth.

The end result were square constructs with a 10cm diagonal and 0.4mm thickness. They were tested by carrying several different weights, and were also inserted into mice. After two, four and even eight weeks, the cells were still alive and encouraged cell growth in certain areas. The cartilage was flexible and elastic enough to mimic the real thing.

This type of research could one day benefit those who require new cartilage implants in areas like joints.

"This is a proof of concept study and illustrates that a combination of materials and fabrication methods generates durable implantable constructs," said Yoo. "Other methods of fabrication, such as robotic systems, are currently being developed to further improve the production of implantable tissue constructs."

Source: Science Daily

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By inperfectdarkness on 11/25/2012 11:21:32 PM , Rating: 6
This may be the beginning of the end for arthritis.

By yvizel on 11/26/2012 1:29:56 AM , Rating: 4
This is my dream coming true.

I had a knee injury (basketball) more than two years ago. Part of it was damage to the articular cartilage at a weight bearing spot. I suffer ever since and just waiting for new procedures...

By dgingerich on 11/26/2012 8:20:37 AM , Rating: 2
I've got cartilage problems in my knees, ankles, neck, and hands. (As Larry Niven would say, "old age is not for sissies.") This would be awesome. I really hope it becomes mainstream soon.

By Samus on 11/26/2012 9:47:23 AM , Rating: 3
The Fifth Element coming to life baby!

By Brandon Hill on 11/26/2012 9:51:39 AM , Rating: 3
"I'd... like to take a few pictures... for the archives."

By cpeter38 on 11/26/2012 12:03:23 PM , Rating: 2
I've been dealing with arthritis for over 15 years (During sandlot football as a 10 yr old, I recovered my older brother's fumble. He was kind enough to reward me, bless his heart, with 2 dislocated knees).

I would give my right t3$t!cl3 to be able to run marathon's w/o knee pain!

By inperfectdarkness on 11/28/2012 2:24:26 AM , Rating: 2
This was my very first 6 on this site. Thank you very much!

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