1. Department of Mechanical Engineering, Ohio University, Athens, Ohio 45701-2979
2. ESPCI Paris, Sciences et Ingénierie de la Matière Molle, CNRS UMR 7615 10, PSL Research University, rue Vauquelin, F-75231 Paris Cedex 05, France
3. Université de Bordeaux, Centre de Recherche Paul Pascal 115 avenue Schweitzer, 33600 Pessac, France
4. University of Bordeaux, CNRS, Solvay, LOF, UMR 5258, 33608 Pessac, France