Concept

Unicellular organism

Related publications (122)

Interactions of silver and polystyrene nanoparticles with algae

Nanoparticles have various physicochemical properties attributed by their small dimensions. The global production of nanoparticles lead to a raised concern for their environmental impacts. Algae are of highly ecological importance functioning as primary pr ...

EPFL2015

Silver nanoparticle toxicity and association with the alga Euglena gracilis

Kristin Schirmer, Laura Sigg, Renata Behra, Xiaomei Li, Laetitia Bernard

The impact of silver nanoparticles (AgNPs) on aquatic algae has largely been studied with model species that possess a rigid cell wall. Here, we explored the interactions of AgNPs with Euglena gracilis, a green alga having no cell wall but a pellicle. The ...

Royal Soc Chemistry2015

An automated microfluidic platform for C. elegans embryo arraying, phenotyping, and long-term live imaging

Johan Auwerx, Martinus Gijs, Thomas Lehnert, Matteo Cornaglia, Laurent Mouchiroud, Alexis Pierre Henri Marette, Virginija Jovaisaite, Shreya Narasimhan

Studies of the real-time dynamics of embryonic development require a gentle embryo handling method, the possibility of long-term live imaging during the complete embryogenesis, as well as of parallelization providing a population's statistics, while keepin ...

Nature Publishing Group2015

Chemical Aspects of Nanoparticle Ecotoxicology

Kristin Schirmer, Laura Sigg, Renata Behra, Hannah Inka Schug, Yang Yue

Nanoecotoxicology strives to understand the processes and mechanisms by which engineered nanoparticles (ENP) may exert toxic effects on aquatic organisms. Detailed knowledge of the chemical reactions of nanoparticles in the media and of their interactions ...

Swiss Chemical Soc2014

Mathematical models and computational methods for the analysis of genome-scale protein synthesis

Julien Racle

Proteins are a ubiquitous and indispensable element for every living organism, from simple bacteria to mammals. Already in the simplest organisms, there exist some thousands of different protein species that take up a great variety of structures, and thus ...

EPFL2014

Form, function, and evolution of living organisms

Andrea Rinaldo, Amos Maritan

Despite the vast diversity of sizes and shapes of living organisms, life's organization across scales exhibits remarkable commonalities, most notably through the approximate validity of Kleiber's law, the power law scaling of metabolic rates with the mass ...

Natl Acad Sciences2014

Regulation of TGF beta and related signals by precursor processing

Daniel Constam

Secreted cytokines of the TGF beta family are found in all multicellular organisms and implicated in regulating fundamental cell behaviors such as proliferation, differentiation, migration and survival. Signal transduction involves complexes of specific ty ...

Elsevier2014

Testing nanomaterial toxicity in unicellular eukaryotic algae and fish cell lines.

Kristin Schirmer

Nanoecotoxicology as a sub-discipline of ecotoxicology aims to identify and predict effects elicited on ecosystems by nano-sized materials (NM). Two key groups of model organisms in this context are algae and fi sh. In this chapter, we present consideratio ...

Springer Science+Business Media2013

Integrated toxicity evaluation of a pulp deposit using organisms of different trophic levels

In order to assess possible adverse effects originating from pulp deposits in a Swiss lake, a sediment quality triad approach was applied with chemical, ecotoxicological and ecological assessment methods. To obtain an integrative picture of the potential e ...

Springer Heidelberg2013

Cell intrinsic immunity spreads to bystander cells via the intercellular transfer of cGAMP

Andrea Ablasser

The innate immune defence of multicellular organisms against microbial pathogens requires cellular collaboration. Information exchange allowing immune cells to collaborate is generally attributed to soluble protein factors secreted by pathogen-sensing cell ...

2013

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