Gels and biomedical materials : symposium held November 28-December 2, 2011, Boston, Massachusetts, U.S.A. / by Symposium LL, "Synthetic and Biological Gels" (2011 : Boston, Mass.), Horkay, Ferenc, Materials Research Society, Symposium MM, "Micro- and Nanoscale Processing of Biomedical Materials" (2011 : Boston, Mass.)