Concept

Bactérie pourpre

Publications associées (110)

Hybrid Control and Transport Using Bacteria-Driven Microbiorobots

We are examining techniques for manipulation of microfabricated elements using arrays of bacteria as microactuators. Flagellated Serratia marcescens bacteria are attached to microstructures using a blotting technique that creates a bacterial monolayer carp ...

ASME2009

Harnessing bacterial power in microscale actuation

Mahmut Selman Sakar

This paper presents a systematic analysis of the motion of microscale structures actuated by flagellated bacteria. We perform the study both experimentally and theoretically. We use a blotting procedure to attach flagellated bacteria to a buoyancy-neutral ...

IEEE2009

Proposal of biostimulation for hexachlorocyclohexane (HCH)-decontamination and characterization of culturable bacterial community from high-dose point HCH-contaminated soils

Christof Holliger

To locate a high-dose point hexachlorocyclohexane (HCH)-contaminated site, to identify HCH-degrading bacteria in it and assay HCH-decontamination by biostimulation. Methods and Results: Bacteria were isolated by serial dilution method from HCH-contaminate ...

2009

Detection and Quantification of Bacteria Involved in Aerobic and Anaerobic Ammonium Oxidation in an Ammonium-Contaminated Aquifer

Christof Holliger

The aerobic and anaerobic ammonium-oxidizing bacterial guilds were studied from two multilevel samplers in an ammonium-contaminated aquifer in the UK. By end point polymerase chain reaction (PCR), the presence of betaproteobacterial ammonium-oxidizing bact ...

2009

Detection of bacteria based on the thermomechanical noise of a nanomechanical resonator: origin of the response and detection limits

Luis Guillermo Villanueva Torrijo

We have measured the effect of bacteria adsorption on the resonant frequency of microcantilevers as a function of the adsorption position and vibration mode. The resonant frequencies were measured from the Brownian fluctuations of the cantilever tip. We fo ...

Institute of Physics2008

Bacterial strategies to overcome insect defences

Bruno Lemaitre

Recent genetic and molecular analyses have revealed how several strategies enable bacteria to persist and overcome insect immune defences. Genetic and genomic tools that can be used with Drosophila melanogaster have enabled the characterization of the path ...

2008

Evf, a virulence factor produced by the Drosophila pathogen Erwinia carotovora, is an S-palmitoylated protein with a new fold that binds to lipid vesicles

Bruno Lemaitre

Erwinia carotovora are phytopathogenic Gram-negative bacteria of agronomic interest as these bacteria are responsible for fruit soft rot and use insects as dissemination vectors. The Erwinia carotovora carotovora strain 15 (Ecc15) is capable of persisting ...

2008

Erwinia carotovora Evf antagonizes the elimination of bacteria in the gut of Drosophila larvae

Bruno Lemaitre

Erwinia Virulence Factor (Evf) has been identified in Erwinia carotovora carotovora 15 (Ecc15) as a virulence factor that promotes colonization of the Drosophila larval gut and provokes the triggering of a systemic immune response. Here we have analysed ho ...

Wiley-Blackwell2006

The bactericidal effect of TiO2 photocatalysis involves adsorption onto catalysts and loss of membrane integrity, FEMS

César Pulgarin

The bactericidal effect of photocatalysis with TiO2 is well recognized, although its mode of action is still poorly characterized. It may involve oxidation, as illuminated TiO2 generates reactive oxygen species. Here we analyze the bactericidal effect of i ...

Blackwell Publishing Ltd, Oxford2006

Mechanisms of pathogen entry through the endosomal compartments

Françoise Gisou van der Goot Grunberg

Several pathogens - bacteria, viruses and parasites - must enter mammalian cells for survival, replication and immune-system evasion. These pathogens generally make use of existing cellular pathways that are designed for nutrient uptake, receptor downregul ...

2006

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