Anode potential-dependent protection of electroactive biofilms against metal ion shock via regulating extracellular polymeric substances

Quorum sensing signals improve the power performance and chlortetracycline degradation efficiency of mixed-culture electroactive biofilms

“…The enhancement in polysaccharide content was also obvious, which increased from 90.10 (Blank) to 130.08 (C4-HSL) and 129.59 μg/mL/cm 2 (PQS). The rise in polysaccharides content was closely related to the response of biofilms to the changes of external environment, while proteins contain a variety of redox functional groups that facilitated the transfer of electrons outside the cell ( Hou et al., 2020 ).…”

“…The formation of EABs was the basis for the biological function of exoelectrogens in natural environment. For example, exoelectrogens could exchange electrons between EABs and electrode during metabolism via extracellular electron transfer (EET) ( Hou et al., 2020 ). Besides, EPS wrapped around microorganisms was wildly studied due to its spatial distances and compact architecture.…”

Rapid measurement of waterborne bacterial viability based on difunctional gold nanoprobe

“…SEM images were taken with a Hitach SU8220 eld-emission scanning electron microscope at an applied voltage of 3 kV. 49,50 Prior to imaging, the SEM samples were prepared by mixing the dGNPs with the bacterial samples, which were then dropped onto a conductive Si substrate and dried at room temperature.…”

Effect of Contact Area and Shape of Anode Current Collectors on Bacterial Community Structure in Microbial Fuel Cells

“…Indeed, the selection of ElectroActive Bacteria (EAB) during biofilm formation on the anode is a crucial step for improving the performance of MFCs. Several studies reported the influence of anode potential on the composition of the microbial community and electroactivity of anodic biofilms of MFCs [ 21 , 22 , 23 ]. Thus, the drop in the potential distribution caused by the contact area and shape of current collectors could restrict spatial development of EAB in anodic biofilms and could influence distribution of bacterial communities on electrode surfaces.…”