Yet more awesomeness out of UIUC Bioengineering. Tiny Robots! Powered by muscle tissue!
Fabbers will be interested that the structures were made using 3D printing techniques, to print out "hydrogel".
See the paper for details.
Well done, all.
Publication:
C. Cvetkovic*, R. Raman*, V. Chan, B. J. Williams, M. Tolish, P. Bajaj, M. L. Sakar, H. H. Asada, M. T. A. Saif, R. Bashir, "Three-dimensionally printed biological machines powered by skeletal muscle" PNAS, 2014. DOI: 10.1073/pnas.1401577111. - (download PDF)