Similarity between bacterial biofilm and embroyid bodies in stem cells

It would be interetsing in probe physico-chemical charcteristic governing the cluster formation in stem cells in form of embryoid bodies (EBs). Comapre it with recent paper (Epstein, A.K., Pokroy, B., Seminara, A. & Aizenberg, J. Bacterial biofilm shows persistent resistance to liquid wetting and gas penetration. Proceedings of the National Academy of Sciences 108, 995-1000 (2011)\)