Printing Simplified Anatomy in 3-D (2 of 9) (VIDEO)
Caption
This is a time-lapse of FRESH printing and heated release of "CMU" logo. Times New Roman alginate letters, "CMU" are printed upright in a gelatin slurry support and then released upon heating to 42° C. The letters are seen to flip backwards and up at the end of the time-lapse video due to buoyancy. Note that when the gelatin support melts, the change in optical properties, convective currents and diffusion of black dye out of the alginate makes it appear that the letters are deforming, though they are not. This material relates to a paper that appeared in the Oct. 23, 2015, issue of Science, published by AAAS. The paper, by T.J. Hinton at Carnegie Mellon University in Pittsburgh, PA, and colleagues was titled, "Three-dimensional printing of complex biological structures by freeform reversible embedding of suspended hydrogels."
Credit
[Credit: Thomas J. Hinton]
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