J. R. Soc. Interface 9, 1787–1796 (2012; Published online 15 February 2012) (doi:10.1098/rsif.2011.0910)
Synchrotron scanning was made possible thanks to the help of Christian Nemoz (nemoz@esrf.fr) and Alberto Bravin (bravin@esrf.fr) from the ID17 beam line at the European Synchrotron Radiation Facility (6, rue Jules Horowitz, BP 220, 38043 Grenoble, Cedex 9, France) and Renaud Boistel (renaud.boistel@univ-poitiers.fr) at the University of Poitiers (IPHEP-UMR CNRS 6046, UFR SFA, Université de Poitiers, 6 Rue Michel Brunet, 86022 Poitiers, France). The scanning was made possible through a European Synchrotron Radiation Facility Project through allocation of beam time.