Printing Ears

Cornell University biomedical engineer Lawrence Bonassar 3-D prints ears using “ink” that contains living cells.

By | September 1, 2013

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Avatar of: Paul Stein

Paul Stein

Posts: 205

September 16, 2013

Another monstrous waste of time (months!), money, and talent.  Without skin covering and a viable blood supply, what use is a white slab of gristle?  Anyone can make something just as useful in an hour with a tube of medical silicone adhesive.  Doctor Bonassar needs to tackle the much more difficult problem of nutrient delivery.  Until then, he is just an "Ordinary Cornellian".

Avatar of: Dr. Jonas Moses

Dr. Jonas Moses

Posts: 22

June 30, 2015

Dr. Bonassar,

In 2004, I presented this same idea to my classmates and colleagues, while a graduate student in Biomedical Engineering, at the University of Illinois, in Chicago. You have not developed anything new. My team -- Dr. Daniel Murauski, Mr. Andrew Murtagh -- and I, did this ten years ago. Please give us the appropriate credit for something we not only conceived, but publicly presented. This was a small group project, which I conceived, and developed (in concert with Dr. Murauski and Mr. Murtagh) for a Cell and Tissue Engineering course, at U of IL, Chicago. 

In my design, I discussed not only how to print the ear, using a bioreactor (also of my design), but how to perfuse the ear (by generating an actual, sustainable capillary bed) and add a skin covering (keratinocytes) to it. Subsequently, I described utilizing such a device to print other tissues, organs and bone.

Thanks to Paul Stein for bringing up these two key points, in his commentary!

Respectfully,

Dr. Jonas Moses

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