Publications related to Indirect Evidence Link PCB Dehalogenation with Geobacteraceae in Anaerobic Sediment-Free Microcosms

Engineering extracellular electron transfer for enhanced energy harvesting in microbial electrochemical devices

Microorganisms known as exoelectrogens evolved the ability of transporting electrons across insulating biological membranes. In a physiological context, this enables respiration on extracellular electron acceptors and electron transfer to other organisms. ...

EPFL2023

Biochar and environmental sustainability: Emerging trends and techno-economic perspectives

Edgard Gnansounou

Environmental pollutants including emerging contaminants are a growing concern worldwide. Organic wastes, such as food waste, compost, animal manure, crop residues, and sludge are generally used as feedstock. The conventional treatment methodologies (prima ...

Elsevier2021

Biotechnology Applications of Nanocarbons in Plant and Algal Systems

Ardemis Anoush Boghossian, Alessandra Antonucci, Alice Judith Gillen

The unique combination of structural, optical, and electronic properties of nanocarbons (NCs) has made these materials particularly attractive for various applications in biotechnology and biomedicine, ranging from sensing, gene-delivery, bioimaging and th ...

Royal Society of Chemistry2021

Microfluidic culture platforms for C. elegans bacterial interaction and digestion studies at single-organism resolution

Vittorio Viri

Increasing interest in understanding fundamental biological processes, among which aging and nutrition, has led to the study of simple and powerful model organisms, as the round-worm Caenorhabditis elegans (C. elegans). The nematode, selected by Sydney Bre ...

EPFL2021

The social nature of mitochondria: Implications for human health

Maria del Carmen Sandi Perez

Sociality has profound evolutionary roots and is observed from unicellular organisms to multicellular animals. In line with the view that social principles apply across levels of biological complexity, a growing body of data highlights the remarkable socia ...

2021

Occurrence of organic micropollutants and human health risk assessment based on consumption of Amaranthus viridis, Kinshasa in the Democratic Republic of the Congo

Dominique Grandjean, Florian Frédéric Vincent Breider

The contamination of water resource and food chain by persistent organic pollutants (POPs) constitutes a major environmental and human health concern worldwide. The aim of this study was to investigate the levels of POPs in irrigation water, soil and in Am ...

2020

Interaction of Fluorescent Single-Walled Carbon Nanotubes with Photosynthetic Microbes

Alessandra Antonucci

The discovery of carbon-based nanomaterials has impacted a variety of research areas in ways that could not be imagined three decades ago. Their unique combination of structural, optical, and electronic properties has made these nano-sized materials partic ...

EPFL2020

Heavy metals and persistent organic pollutants contamination in river, estuary, and marine sediments from Atlantic Coast of Democratic Republic of the Congo

Dominique Grandjean, Florian Frédéric Vincent Breider

The pollution assessment and the evaluation of potential risks in the Atlantic Coastal Region of the Democratic Republic of the Congo are still very limited. Consequently, the present study investigates for the first time the concentrations of heavy metals ...

Springer2020

A perspective view on the nanomotion detection of living organisms and its features

Giovanni Dietler, Sandor Kasas, Anne-Céline Verenna Kohler, Giovanni Longo, Massimiliano Bertacchi, Petar Stupar, María Inés Villalba, Leonardo Venturelli

The insurgence of newly arising, rapidly developing health threats, such as drug-resistant bacteria and cancers, is one of the most urgent public-health issues of modern times. This menace calls for the development of sensitive and reliable diagnostic tool ...

WILEY2020

Do chance encounters between heterogeneous cells shape the outcome of tuberculosis infections?

John McKinney, Ophélie Rutschmann, Chiara Toniolo

The sum of all of the interactions between single bacteria and host cells determines if an infection is cleared, controlled, or progresses at the whole host-organism level. These individual interactions have independent trajectories defined by diverse and ...

2020

Impact of iron reduction on the metabolism of Clostridium acetobutylicum

Rizlan Bernier-Latmani, Vassily Hatzimanikatis, Karin Lederballe Meibom, Cornelia List, Zhaleh Hosseini

Iron is essential for most living organisms. In addition, its biogeochemical cycling influences important processes in the geosphere (e.g., the mobilization or immobilization of trace elements and contaminants). The reduction of Fe(III) to Fe(II) can be ca ...

2019

Bacterial traps and advances in nanobiotechnology for atomic force microscopy

Oliver Peric

The atomic force microscope (AFM) allows the analysis of living microorganisms in physiological conditions on the nanometer scale. The observation of bacteria in physiological aqueous medium necessitates a robust immobilization of the bacterium to the surf ...

EPFL2018

Bacterial Whole Cell Typing by Mass Spectra Pattern Matching with Bootstrapping Assessment

Hubert Girault, Yu Lin, Liang Qiao

Bacterial typing is of great importance in clinical diagnosis, environmental monitoring, food safety analysis, and biological research. Matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) is now widely used to analyze bacterial samples ...

American Chemical Society2017

Validation of an integrative methodology to assess and monitor reductive dechlorination of chlorinated ethenes in contaminated aquifers

Christof Holliger, Pierre Rossi, Sonia Estelle Tarnawski

Bioremediation of tetra-and trichloroethene-contaminated aquifers is requently hampered due to incomplete dechlorination to the more toxic dichloroethene (DCE) and vinyl chloride (VC), indicating insufficient knowledge about the biological mechanisms relat ...

2016

Optimization and characterization of the endogenous production of protoporphyrin IX in a yeast model

Georges Wagnières, Matthieu Philippe Emmanuel Zellweger, Emmanuel Louis Arthur Gerelli, Jaroslava Joniová

The availability of reproducible, convenient, and inexpensive model organisms able to generate predictable levels of endogenous porphyrins, including protoporphyrin IX (PpIX), is essential in photomedicine research. Saccharomyces cerevisiae produces endoge ...

SPIE Society of Photo-optical Instrumentation Engineers2016

Divergent PCB organohalide-respiring consortia enriched from the efflux channel of a former Delor manufacturer in Eastern Europe

Luiz Felippe De Alencastro, Christof Holliger, Pierre Rossi, Martina Praveckova

Polychlorinated biphenyl (PCB) organohalide-respiring communities from the efflux channel of a former Delor manufacturer in Eastern Slovakia were assessed using metagenomic, statistical and cultivation-adapted approaches. Multivariate analysis of environme ...

Elsevier2015

GCxGC Quantification of Priority and Emerging Nonpolar Halogenated Micropollutants in All Types of Wastewater Matrices: Analysis Methodology, Chemical Occurrence, and Partitioning

Jimmy Westphale, Jeremy Samuel Arey, Jonas Gros, Alex Bonvin, Petros Dimitriou Christidis, Rebecca Rutler, Saer Samanipour, Juliane Hollender

We report the development and validation of a method to detect and quantify diverse nonpolar halogenated micropollutants in wastewater treatment plant (WWTP) influent, effluent, primary sludge, and secondary sludge matrices (including both the liquid and p ...

Amer Chemical Soc2015

Metal reduction and sporulation in Desulfotomaculum reducens

Elena Cristina Dalla Vecchia

The genera Desulfotomaculum and Clostridium, belonging to the phylum Firmicutes, comprise Gram-positive, low G+C genomic content, anaerobic, spore- forming bacteria. Desulfotomaculum is a metabolically and environmentally versatile genus capable of growing ...

EPFL2014

Trace metals and persistent organic pollutants in sediments from river-reservoir systems in Democratic Republic of Congo (DRC): Spatial distribution and potential ecotoxicological effects

Luiz Felippe De Alencastro, Dominique Grandjean

This paper discusses the occurrence and spatial distribution of metals and persistent organic pollutants (POPs: including organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), Polybrominated diphenyl ethers (PBDEs), and polycyclic aromatic hy ...

Elsevier2014

Effects of antibacterial agents and drugs monitored by atomic force microscopy

Sandor Kasas, Giovanni Longo

Originally invented for topographic imaging, atomic force microscopy (AFM) has evolved into a multifunctional biological toolkit, enabling to measure structural and functional details of cells and molecules. Its versatility and the large scope of informati ...

Wiley-Blackwell2014