Shape-shifting structured lattices via multimaterial 4D printing.
J.W. Boley, W.M. van Rees, C. Lissandrello, M.N. Horenstein, R.L. Truby, A. Kotikian, J.A. Lewis, and L. Mahadevan, Proc. Natl. Acad.  Sci.,  116 (42) 20856-20862, 2019.

http://www.pnas.org/cgi/doi/10.1073/pnas.1908806116 2019-19