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Cornell Professor Develops Technique for 3D Printing a Human Ear
3D printing organs and stem cells is currently being researched and may become a reality someday. What about 3D printing an ear using material to synthesize human cartilage?
Lawrence Bonassar, associate professor of biomedical engineering at Cornell University, has been working to solve this problem by developing a “living ink” that can be used to 3D print the cartilage for a human ear. His research was published in the journal PLoS One and featured on NPR.
“The ear is really remarkable from a mechanical perspective,” says Lawrence Bonassar, an associate professor of biomedical engineering at Cornell University who has been working with a group to develop a better replacement ear.
To make the ear, Bonassar and his colleagues scanned the ears of his twin daughters, who were 5 at the time. They used a 3-D printer to build a plastic mold based on the scan. Those printers, similar to a home inkjet, lately have also been adapted to experiment with making chocolate, guns, and even kidneys.
They then injected a soup of collagen, living cartilage cells, and culture medium. The soup congeals “like Jell-O,” Bonassar tells Shots. “All this happens quickly. You inject the mold, and in 15 minutes you have an ear ready to go.”
Well, not exactly. What they have is an ear-shaped chunk of cells that would have to be tucked under the skin on the side of the head by a plastic surgeon before it could become an ear.
To test whether their ear-mold would become living, useful ear cartilage, the researchers implanted samples under the skin on the back of laboratory rats. In three months, cartilage cells took over the collagen, making for a solid-yet-flexible chunk of cartilage that retained its precise shape and size.
Bonassar thinks this technology can be used in humans in 5 years, with any luck.
Below is a video featuring this amazing research.
Via NPR.
Video: The Best 7 TED Talks On 3D Printing
The TED conference has been home to some of the leading ideas about 3D printing. In a recent feature, TED has collected some of the best talks on 3D printing in one place.
At TED, we love sharing stories of 3D printing and its rapidly developing power to make new things possible. TED Fellow Bre Pettis’s Makerbot; the Thingiverse database allow makers worldwide to share designs for printers; designers printing artificial limbs; artists re-inventing their process — we can’t wait to see what’s next. In honor of 3D printers here are some TED and TEDx talks on understanding this technology.
Here are the top 7 talks.
Lisa Harouni: A primer on 3D printing
So what exactly is 3D printing? Lisa Harouni breaks it down — from machine to design to product. Learn how it all works in this talk from TEDSalon London Spring 2011.
Klaus Stadlmann: The world’s smallest 3D printer
Klaus Stadlmann built the microprinter, the smallest 3D printer in the world. In this talk from TEDxVienna, he demos this tiny machine that could someday make customized hearing aids — or sculptures smaller than a human hair.
Scott Summit: Beautiful artificial limbs
In his work, prosthetics designer Scott Summit noticed that a lot of people had to hack their own artificial limbs — with socks, bubble wrap, even duct tape — to feel comfortable. In this talk from TEDxCambridge, he describes how he turned to 3D printing to create limbs that not only match a person’s body, but their personality as well.
Anthony Atala: Printing a human kidney
The shortage of organ donations is a crisis in healthcare. A possible solution? Printable organs. In this stirring talk from TED2011, Anthony Atala describes his research into the development of an organ-printing 3D printer, and introduces a recipient of the product of a similar technology — a bladder grown by borrowed cells.
Marc Goodman: A vision of crimes in the future
Sometimes, despite the very best intentions, the things we create aren’t used in the ways we thought they would be. In this talk from TEDGlobal 2012, Marc Goodman draws from his experience in law enforcement to show the dark side of technology — what happens when great tools get into the wrong hands. In his talk, he shows a way 3D printing could be used for harm and cautions us to guard against these potentials.
David F. Flanders: Why I have a 3D printer
David F. Flanders is a 3D printing guru and the host of PIF3D, a collective dedicated to hosting “build parties,” during which 3D printing experts help curious outsiders build personal 3D printers. In this talk from TEDxHamburg, he discusses the development of the technology and the implications of its mass use, including 3D printers’ role in recovery relief, architecture, and the office supply closet.
Via TED.
Top 10 Countdown: Most Popular 3D Printing Stories in January 2013
Here are the top 10 most popular stories On 3D Printing brought you in January 2013.
10. Nokia’s 3D Printing Kit Lets Customers to Personalize Lumia Phone
9. Video: Stephen Colbert 3D Printed Bust at MakerBot Thingiverse
8. National Gun Control Debate Threatens 3D Printing With Regulation
7. Filabot Reclaimer Turns Recyclable Plastic into 3D Printing Material
6. Our Detailed Guide to CES 2013: Welcome to the Year of 3D Printing!
5. Fashion Week and 3D Printing: Stratasys and Shapeways Hit the Runway
4. RoBo 3D Printer Raises $500K on Kickstarter to Battle MakerBot
3. 3D Printing at CES 2013 Roundup: MakerBot, Stratasys and More
2. 3D Printing Advances Dentistry in London at Daewood & Tanner Practice
1. 3D Printing Company ExOne to Raise $75 Million in IPO on NASDAQ
Thanks for reading in January!
Biofabrication: Scientists 3D Print Stem Cells to Create Human Organs
Scientists from Heriot Watt University in Edinburgh, Scotland, have developed a technique for 3D printing human embryonic stem cells (hESCs), claiming that this research could be advanced to eventually 3D print human organs. In the short-term, this technique could be used for more reliable drug testing.
Dr Will Shu, from Heriot-Watt University in Edinburgh, told BBC: “We found that the valve-based printing is gentle enough to maintain high stem cell viability, accurate enough to produce spheroids of uniform size, and most importantly, the printed hESCs maintained their pluripotency – the ability to differentiate into any other cell type.”
Here is a video from Sky News featuring the Edinburgh lab and an interview with Dr. Will Shu.
The team’s research has been published in the journal Biofabrication.
More from BBC:
Jason King, business development manager of stem cell biotech company Roslin Cellab, which took part in the research, said: “Normally laboratory grown cells grow in 2D but some cell types have been printed in 3D.
“However, up to now, human stem cell cultures have been too sensitive to manipulate in this way.
“This is a scientific development which we hope and believe will have immensely valuable long-term implications for reliable, animal-free, drug testing, and, in the longer term, to provide organs for transplant on demand, without the need for donation and without the problems of immune suppression and potential organ rejection.”
Video: 3D Printing and the Future of Personalized Shopping
ReasonTV’s Nick Gillespie sat down with Peter Weijmarshausen, CEO of the New York based 3D printing company Shapeways, to discuss 3D printing, the future of customization, and the economics behind the new technology.
Gillepsie asks Weijmarshausen if we are “in the dot matrix era of 3D printing.” Weijmarshausen explains how 3D printing will shape the future of shopping, saying “you may think this is science fiction, but it’s not.”
“What we want…is not to be about 3D printing, but to be about empowering people to get what they want,” said Weijmarshausen. “We enable people to be involved in the products, and I think they like that.”
Weijmarshausen believes that the growing popularity of 3D printing will revolutionize the ways we shop, giving consumers the choice to customize their products rather than settle for the small number of mass produced goods already on the market.
Watch the video below.
