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Molecular dynamics of photosynthetic electron flow in a biophotovoltaic system.
Environ Sci Ecotechnol
January 2025
Systems Biotechnology Group, Department of Microbial Biotechnology, Helmholtz Centre for Environmental Research - UFZ, 04318, Leipzig, Germany.
Biophotovoltaics (BPV) represents an innovative biohybrid technology that couples electrochemistry with oxygenic photosynthetic microbes to harness solar energy and convert it into electricity. Central to BPV systems is the ability of microbes to perform extracellular electron transfer (EET), utilizing an anode as an external electron sink. This process simultaneously serves as an electron sink and enhances the efficiency of water photolysis compared to conventional electrochemical water splitting.
View Article and Find Full Text PDFMultidrug and Toxic Compound Extrusion Transporters: Ubiquitous Multifaceted Proteins in Microbes, Plants, and Their Interactions.
Microorganisms
November 2024
Laboratorio di Patologia Vegetale Molecolare, Dipartimento di Scienze e Tecnologie Agrarie, Alimentari Ambientali e Forestali, Università degli Studi di Firenze, Via della Lastruccia 10, 50019 Sesto Fiorentino, Firenze, Italy.
In recent years, membrane transporters have attracted considerable interest regarding their involvement in the molecular dialogue occurring between microbes and their hosts. In particular, the multidrug and toxic compound extrusion (MATE) transporters form a family of integral membrane proteins, mainly involved in the efflux of toxic and xenobiotic compounds. They are present in all living organisms, both prokaryotes and eukaryotes, where they have a wide array of extremely different roles.
View Article and Find Full Text PDFAn Agent-Based Model of Metabolic Signaling Oscillations in Biofilms.
bioRxiv
December 2024
Departments of Biology and Physics, Boston University, Boston, MA, USA.
Microbes of nearly every species can form biofilms, communities of cells bound together by a self-produced matrix. It is not understood how variation at the cellular level impacts putatively beneficial, colony-level behaviors, such as cell-to-cell signaling. Here we investigate this problem with an agent-based computational model of metabolically driven electrochemical signaling in biofilms.
View Article and Find Full Text PDFEnvironmental bioremediation of pharmaceutical residues: microbial processes and technological innovations: a review.
Bioprocess Biosyst Eng
January 2025
Faculty of Civil Engineering & Built Environment, Universiti Tun Hussein Onn Malaysia, Batu Pahat, 86400, Parit Raja, Johor, Malaysia.
Article Synopsis
- The widespread presence of pharmaceuticals and personal care products (PPCPs) in the environment is a major concern due to their potential harmful effects on human health and wildlife.
- Research highlights the role of various microorganisms, including algae, bacteria, and fungi, in biodegrading pharmaceutical compounds, with new techniques like Bio Electrochemical Systems (BES) being explored for enhanced degradation in wastewater.
- Genetic modification of microbial strains is being evaluated to boost their degradation capabilities, while environmental factors such as temperature and pH may influence overall bioremediation efficiency, highlighting a need for further research in this area.
A Redox-Enzyme Integrated Microbial Fuel Cell Design Using the Surface Display System in MR-1.
ACS Appl Mater Interfaces
January 2025
Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea.
A biofuel cell is an electrochemical device using exoelectrogen or biocatalysts to transfer electrons from redox reactions to the electrodes. While wild-type microbes and natural enzymes are often employed as exoelectrogen and biocatalysts, genetically engineered or modified organisms have been developed to enhance exoelectrogen activity. Here, we demonstrated a redox-enzyme integrated microbial fuel cell (REI-MFC) design based on an exoelectrogen-enhancing strategy that reinforces the electrogenic activity of MR1 by displaying an extra redox enzyme on the cell surface.
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