Printed Artificial Capillary Blood Vessels

Printed microfine capillary blood vessels are now possible, thanks to researchers at the Fraunhofer Institute. These structures will be needed to supply the larger artificial biological structures that have already been created (see Human Vein Bioprinted In 3D and World's First Artificial Human Liver Grown In Lab).


(Tissue engineering at Fraunhofer Institute)

A 3-D inkjet printer can generate 3-dimensional solids from a wide variety of materials very quickly. It applies the material in layers of defined shape and these layers are chemically bonded by UV radiation. This already creates microstructures, but 3-D printing technology is still too imprecise for the fine structures of capillary vessels. This is why these researchers combine this technology with two-photon polymerization. Brief but intensive laser impulses impact the material and stimulate the molecules in a very small focus point so that crosslinking of the molecules occurs. The material becomes an elastic solid, due to the properties of the precursor molecules that have been adjusted by the chemists in the project team. In this way highly precise, elastic structures are built according to a 3-dimensional building plan.

The scientists integrate modified biomolecules such as heparin and anchor peptides into the inside walls. They also develop inks made of hybrid materials that contain a mixture of synthetic polymers and biomolecules right from the beginning. The second step is where endothelial cells that form the innermost wall layer of each vessel in the body can attach themselves in the tube systems.

Larry Niven wrote about artificially grown organs in the 1960's. You might need to use one of Philip K. Dick's Biltong life forms to actually print one. Take a look at this Organovo organ printing video.

Fraunhofer Institute via MedGadget.

Scroll down for more stories in the same category. (Story submitted 9/16/2011)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 0 )

Related News Stories - (" Medical ")

Targeted Neuroplasticity Training For 'Downloading Skills'
'I know kung-fu.'

Will The FDA Approve This Antiaging Drug?
'So what we're looking for now is... an anti-agathic, an anti-death drug.' - James Blish, 1951.

EVE Artificial Womb For Lambs (For Now)
'In the crimson darkness, stewing warm on their cushion of peritoneum and gorged with blood-surrogate and hormones...' - Aldous Huxley, 1932.

Bees Royal Jelly Helps Wounds Heal Faster
'An alien drug... used by an insect race.' - Clifford Simak, 1961.

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

 

Current News

Dubai Scorpion Police Hoverbike Ready To Pull Young Kirk Over
'Is there a problem, officer?'

HEXA Robotic Help For Plants
Then some unknown race had chanced upon the dreamers and decided to "help them out."

Korean Tesla Model S Video 'Excelsior' Is Indeed Our Motto
'Improving man by bringing him close to Nature, while they combine the sensations of coasting with the interest of seeing the country well...'

DIY Robot Shoots You In The Face
'...there were automatic guns that fired ligamine darts.'

A Bayesian Approach to Safe Imitation Learning For AIs and Robots
Um, how about that pension for the humans who serve as the models for robot behavior?

Qoobo Headless Robotic Therapy Cat Was Anne McCaffrey's Idea
'...used as surrogates in intense dependency cases.'

Autonomous Cars Talk To Each Other At MCity
'My cars talk to one another.'

PUFFER Robots - From Philip K DIck's Second Variety?
'Across the ground something small and metallic came, flashing in the dull sunlight of midday.'

Russian Space Garden
'We saw the gardens, flooded with artificial sunlight...'

Targeted Neuroplasticity Training For 'Downloading Skills'
'I know kung-fu.'

U of M's MCity To Feature Asimov's Automatobuses
Should you turn autonomous buses off?

Crazyflie Drone Swarm Technology
'...Programmed to hang in space in a hexagonal grid pattern.'

Our GodBot, Who Art In Cyberspace
Vaal hungers! We must serve him.

easyJet Short-Haul Electric Jets
Have a little faith, will you? They're working on it.

Meet Assist-e Honda's Self-Balancing Motorcycle
'He had never ridden any motorized device that lacked onboard steering and balance systems...'

Kalashnikov's One-Seater Hovercraft
Not for windy days.

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.