NAD-dependent alcohol dehydrogenase (ADH) enzymes for ethanol oxidation were investigated by differential electrochemical mass spectrometry (DEMS). The broad mass spectra obtained under bioelectrochemical control and with unprecedented accuracy were used to provide new insight into the enzyme kinetics and mechanisms.

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Biophotovoltaic devices employ photosynthetic organisms at the anode of a microbial fuel cell to generate electrical power. Although a range of cyanobacteria and algae have been shown to generate photocurrent in devices of a multitude of architectures, mechanistic understanding of extracellular electron transfer by phototrophs remains minimal. Here we describe a mediatorless bioelectrochemical ...

Bioelectrochemical systems (BES) are groups of bioelectrochemical technologies and platforms that could facilitate versatile environmental and biological applications. The performance of BES is mainly determined by the key process of electron transfer at the bacteria and electrode interface, which is known as extracellular electron transfer (EET). Thus, developing novel electrodes to encourage ...

Abstract Bioelectrochemical systems (BESs) are a new and emerging technology in the field of fermentation technology. Electrical energy was provided externally to microbial electrolysis cells (MECs) generate hydrogen or value-added chemicals, including caustic, formic acid, acetic peroxide. Also, BES designed recover nutrients, metals remove recalcitrant compounds. The variety naturally existin...

Bioelectrochemical sensors have proven attractive as simple and low-cost methods with high potential for online monitoring of volatile fatty acids (VFA) in the anaerobic digestion (AD) process. Herein, an innovative dual-chamber air-cathode microbial fuel cell was developed biosensor VFA monitoring. The response nonlinear increased along concentration mixture increase (2.8–112 mM). Meanwhile, r...

Nitrogen pollution in wastewater has been considered a worldwide risk to ecosystems. Bioelectrochemical technologies have developed recently remove nitrogen. In addition nitrogen, microplastics, as emergency pollutants wastewater, could potentially affect nitrogen removal efficiency due their toxic effects on the activity of microorganisms. This study explored how microplastics would influence ...