Social Media Sidebar


Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

When seen through the lens of technology, few resources are truly scarce; they’re mainly inaccessible. 


Peter Diamandis

3D printing organs, complete with blood vessels, takes a big step forward

Posted in Science on 7th May, 2014 10:03 PM by AlexMuller

Unresolved challenges can be lost among reports of breakthroughs in regenerative medicine. While many researchers have found ways to grow organ tissues in vitro, they have had not succeeded at growing full-size organs in large part because they haven’t figured out how to produce blood vessels that feed the organ tissue.

Earlier this year, Harvard materials scientist Jennifer Lewis devised a way to coax 3D printers into printing the tiny empty spaces as a part of a tissue mockup that consists of several different materials and cell types.
“This is the foundational step toward creating 3D living tissue,” Lewis said in a news release.
To create a simplified version of tissue complete with blood vessels, Lewis’s team filled a printer with tiny print-heads with several different “inks.” One consisted of extracellular matrix, the biological material that knits cells into tissues; another contained both extracellular matrix and living cells.
A third ink traced out the vessels. This ink was designed to melt when it cools, rather than warms. (All of the inks are designed to be printed at room temperature.)
They printed an interlace of the inks that included a maze of “vessels.” Then they chilled the material and siphoned out the melted blood vessel ink, leaving hollow tubes in its wake. The researchers then injected endothelial cells into the tubes, and the cells formed a lining for the tubes, making them capable of carrying liquid.
A network of blood vessels, besides being essential for any prospective transplant organ, would allow researchers to make thicker organ stand-ins to use to test drugs in the lab. Vasculature would also allow tissues to live longer, making room for better tests.

Tags: organsmedicineregenerative medicinestem cells3D printing

Read original article » Back to category


Author: Guest
Posted: 2014-05-08
It is great to see such a substantial progress in 3 D printing of live tissues and organs. The immediate use is in drug discovery, bypassing use of animals and ultimately in making revolution in transplanting organs by not waiting for human donors Reply


Recent headlines

  • Posted in Online on 2017-12-15 13:43:41
    The FCC votes to repeal the 2015 net neutrality more
    Posted in Science on 2017-12-15 13:34:37
    How Clinical Trials Are Making the Case for MDMA more
    Posted in Business on 2017-12-15 13:23:01
    Elon Musk: We Should Already Have a Lunar Base by more
    Posted in Business on 2017-12-14 01:48:06
    World Bank to stop financing oil, gas projects from more
    Posted in Medicine on 2017-12-13 21:23:13
    Marijuana May Help HIV Patients Keep Mental Stamina more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs, more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target more

Recent Blog Posts

  • Posted by AlexMuller
    Martian landscapes formed from sand 'levitating' on a more
    Posted by AlexMuller
    Scientists detect comets outside our solar more
    Posted by AlexMuller
    Advanced artificial limbs mapped in the more
    Posted by AlexMuller
    Bacteria have a sense of more
    Posted by AlexMuller
    Recurrent brain cancer: New hope with phase 1 clinical more

Login to your Account

Login to your PlanetTech Account here

Remember me

Create a New Account

You just need username and password

The following errors occured:
Verify password:
Remember me