[1] Nanyang Technol Univ, Singapore Ctr Environm Life Sci Engn SCELSE, Singapore 637551, Singapore
[2] Nanyang Technol Univ, Singapore Ctr Environm Life Sci Engn SCELSE, Interdisciplinary Grad Sch, Singapore 637551, Singapore
[3] Nanyang Technol Univ, Sch Biol Sci, Singapore 637551, Singapore
[4] Univ Copenhagen, Fac Hlth Sci, Costerton Biofilm Ctr, DK-2200 Copenhagen N, Denmark