Fig. 4From: Applications of microalgal biofilms for wastewater treatment and bioenergy productionBio-flocculation of Isochrysis sp. cells by BAPS-52-2 filaments. a–f Attachment of Isochrysis sp. cells to BAPS-52-2 filaments. Secreted EPS shown by red arrows. g Isochrysis cells (left wells, controls) and Isochrysis cells mixed with BAPS-52-2 filaments (right wells) at day 0 and day 10 (h). Green pigmentation produced by biofilm produced by monocultured BAPS-52-2 filaments at day 10 (i upper well) and Biofilm #102 at day 10 (i bottom well). Scale bars a–f 20 µm; g–i 1 cmBack to article page