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Fig. 3 The bacteria loading capacity and biocompatibility of GA/Pt.
The bacteria loading capacity and biocompatibility of GA/Pt. (A) SEM image of the surface of GA/Pt incubation with S. oneidensis MR-1 (inset: magnified SEM image). (B) SEM image of the cross section of GA/Pt incubation with S. oneidensis MR-1 (inset: magnified SEM image), revealing that the open macroporous structure of GA/Pt has high bacteria loading capacity. (C) SEM image of carbon cloth anode incubation with S. oneidensis MR-1 (inset: magnified SEM image). By comparing with the traditional carbon cloth under the same culture conditions, the advantage of GA/Pt for bacteria loading capacity is very obvious. (D) Confocal laser scanning microscope (CLSM) image of bacteria on GA/Pt after 3 days of colonization. The biocompatibility of GA/Pt composites is confirmed with the stained assay with calcein AM and propidium iodide (PI) to distinguish the live (green) and dead (red), respectively. CLSM image shows that bacteria can live very well on the GA/Pt. Shenlong Zhao et al. Sci Adv 2015;1:e Copyright © 2015, The Authors
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