Polymer-induced phase separation in suspensions of bacteria J. Schwarz-Linek, G. Dorken, A. Winkler, L. G. Wilson, N. T. Pham, C. E. French, T. Schilling and W. C. K. Poon EPL, 89 6 (2010) 68003 Published online: 19 April 2010 DOI: 10.1209/0295-5075/89/68003