Concept

Digestion

Publications associées (69)

Fate and effects of microplastic particles in a periphyton-grazer system

Kristin Schirmer, Ahmed Tlili, Renata Behra

In the aquatic environment, microplastic particles (MP) can accumulate in microbial communities that cover submerged substrata, i.e. in periphyton. Despite periphyton being the essential food source for grazers in the benthic zones, MP transfer from periph ...

Elsevier Sci Ltd2024

Microfluidic devices for automated analysis of ingested bacteria in the Caenorhabditis elegans intestine

Farzad Rezaeianaran

In this thesis, we explored on-chip high-resolution imaging of the fate of intestinal bacteria and bacterial products in Caenorhabditis elegans (C. elegans). In the first part, we carried out high-resolution z-stack fluorescent imaging of Red Fluorescent P ...

EPFL2023

Evaluation of tire tread particle toxicity to fish using rainbow trout cell lines

Kristin Schirmer, Florian Frédéric Vincent Breider, Benoît Jean Dominique Ferrari, Thibault Béranger Masset, Gabrielle Léger

Tire and road wear particles (TRWP) resulting from tire abrasion while driving raise concerns due to their potential contribution to aquatic toxicity. Our study aimed to assess cryogenically milled tire tread (CMTT) particle toxicity, used as a proxy for T ...

2023

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

An In Vivo Microfluidic Study of Bacterial Load Dynamics and Absorption in the C. elegans Intestine

Martinus Gijs, Thomas Lehnert, Vittorio Viri, Maël Arveiler

Caenorhabditiselegans (C. elegans) has gained importance as a model for studying host-microbiota interactions and bacterial infections related to human pathogens. Assessing the fate of ingested bacteria in the worm's intestine is therefore of great interes ...

MDPI2021

Potential bioavailability of inorganic compounds from Tire and Road Wear Particles to fish in simulated gastric and intestinal fluids

Florian Frédéric Vincent Breider, Benoît Jean Dominique Ferrari, Thibault Béranger Masset

The potential impact of Tire and Road Wear Particles (TRWP) on aquatic organisms has recently gained attention since the occurrence of TRWP in the aquatic environment has been demonstrated in surface water and sediments of numerous regions. However, data r ...

2020

Bioavailability of steroid hormones sorbed on microplastics for aquatic organisms through biological fluids

Florian Frédéric Vincent Breider, Thibault Béranger Masset, Cécilia Laetitia Carla Siri, Yang Liu

Many studies have reported that hydrophobic organic contaminants have the ability to sorb on microplastics in aquatic ecosystem via different mechanisms of sorption. However, a lack of studies investigating desorption of such contaminants in organism fluid ...

2020

CFD simulation of an aerosol mixing chamber

Andrea Giordano

In the last years, the correlation between air pollution and health issues related to respiratory, cardiovascular and digestive systems has become evident. Today, urban aerosols raise the interest of both scientific community and public opinion. METAS, the ...

2020

The adsorption and desorption behaviors of phenanthrene and pyrene onto microplastics in the aquatic environment and digestive fluids

Florian Frédéric Vincent Breider, Thibault Béranger Masset, Cécilia Laetitia Carla Siri, Yang Liu

The adsorption and desorption behaviors of Phenanthrene and Pyrene onto polyethylene (PE), polypropylene (PP), polystyrene (PS), and poly (methyl methacrylate) (PMMA) microplastics in the simulated freshwater and digestive fluids (simulated gastic fluid (S ...

2020

Combining Cryogenic Infrared Spectroscopy with Selective Enzymatic Cleavage for Determining Glycan Primary Structure

Thomas Rizzo, Robert Paul Pellegrinelli, Eduardo Carrascosa Casado

Given the biological relevance and intrinsic structural complexity of glycans, increasing efforts are being directed towards developing a general glycan database that includes information from different analytical methods. As recently demonstrated, cryogen ...

2020

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