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Three-dimensional surface rendering of PCB biofilm development. (A) Three-day-old biofilm; (B) 7-day-old biofilm; (C) 10-day-old biofilm; (D) 17-day-old biofilm; (E) 24-day-old biofilm; (F) 31-day-old biofilm. Green, SYBR green; red, Nile Red. Grid size, 20 μm.
