Although the past 20 years have seen significant advances in tailoring materials for improving performance of bioelectrochemical systems, recently, there been efforts utilizing synthetic biology toolkit engineering organisms systems. This review discusses use to engineer non-native properties into systems increasing diversity fuel utilization energy applications, allowing novel electrosynthetic...

Bioelectrochemical systems (BESs) have been acknowledged to be an efficient technology for refractory pollution treatment. An electron donor is as indispensable element of BES, and domestic wastewater (DW) has proved a cost-efficient accessible alternative option expensive carbon sources (such acetate glucose), yet its effect on microbial community evolution not thoroughly revealed. In this stu...

Hydrothermal chimneys are striking, characteristic features of marine hydrothermal vents. These chimneys are dynamic environments occupied by a diversity of microbes whose distribution is typically concordant with mineralogy and temperature. Recent studies indicate that these chimney assemblages are conductive and present the possibility that microbial extracellular electron transfer may occur ...

Biotechnological utilization of microbial processes normally starts with the discovery, investigation, and understanding of naturally occurring microbial reactions. Biomolecular tools can help us, not only to gain better understanding of protein reactions; they also enable us to influence reaction properties. For efficient practical applications, modern biological techniques allow us to tailor ...

BACKGROUND Pseudomonas putida is a promising host for the bioproduction of chemicals, but its industrial applications are significantly limited by its obligate aerobic character. The aim of this paper is to empower the anoxic metabolism of wild-type Pseudomonas putida to enable bioproduction anaerobically, with the redox power from a bioelectrochemical system (BES). RESULTS The obligate aerob...

A methane-producing biocathode that converts CO(2) into methane was studied electrochemically and microbiologically. The biocathode produced methane at a maximum rate of 5.1 L CH(4)/m(2) projected cathode per day (1.6 A/m(2)) at -0.7 V versus NHE cathode potential and 3.0 L CH(4)/m(2) projected cathode per day (0.9 A/m(2)) at -0.6 V versus NHE cathode potential. The microbial community at the b...

In a microbial bioelectrochemical system (BES), organic substrate such as glycerol can be reductively converted to 1,3-propanediol (1,3-PDO) by a mixed population biofilm growing on the cathode. Here, we show that 1,3-PDO yields positively correlated to the electrons supplied, increasing from 0.27 ± 0.13 to 0.57 ± 0.09 mol PDO mol(-1) glycerol when the cathodic current switched from 1 A m(-2) t...