2017

Articles

• Study of the spatio-temporal dynamics of interactions between the surface microbiota and metabolome of the macroalga Taonia atomaria through a multi-omics approach
  13 June 2017

  Beginning: November 2016
  Defense: September 17th, 2020

• Discrimination of four marine biofilm-forming bacteria by LC-MS metabolomics and influence of culture parameters
  31 March 2017

  Most marine bacteria can form biofilms, and they are the main components of biofilms observed on marine surfaces. Biofilms constitute a widespread life strategy, as growing in such structures offers many important biological benefits. The molecular compounds expressed in biofilms and, more generally, the metabolomes of marine bacteria remain poorly studied. In this context, a nontargeted LC–MS metabolomics approach of marine biofilm-forming bacterial strains was developed. Four marine bacteria, Persicivirga (Nonlabens) mediterranea TC4 and TC7, Pseudoalteromonas lipolytica TC8, and Shewanella sp. TC11, were used as model organisms. The main objective was to search for some strain-specific bacterial metabolites and to determine how culture parameters (culture medium, growth phase, and mode of culture) may affect the cellular metabolism of each strain and thus the global interstrain metabolic discrimination. LC–MS profiling and statistical partial least-squares discriminant analyses showed that the four strains could be differentiated at the species level whatever the medium, the growth phase, or the mode of culture (planktonic vs biofilm). A MS/MS molecular network was subsequently built and allowed the identification of putative bacterial biomarkers. TC8 was discriminated by a series of ornithine lipids, while the P. mediterranea strains produced hydroxylated ornithine and glycine lipids. Among the P. mediterranea strains, TC7 extracts were distinguished by the occurrence of diamine derivatives, such as putrescine amides.

• Thermal and mechanical properties of nanostructured bio-based epoxies by amphiphilic copolymer determined at local scale
  20 February 2017

  Beginning: January 2017

• Analyses métabolomique et protéomique comparatives de la bactérie marine Pseudoalteromonas lipolytica TC8 cultivée en mode planctonique et en biofilm
  16 January 2018
• Dynamique de la colonisation des surfaces artificielles en Méditerranée par une approche multidisciplinaire metabarcoding/métabolomique
  1 February 2018
• Use of in situ complexation for the synthesis of ion-imprinted polymers
  17 April 2018, by CaB
• Phenotypic heterogeneity in attachment of marine bacteria towards antifouling copolymers unraveled by AFM
  5 April 2018, by ChB
• Electrodeposition of composite films of reduced graphene oxide/ polyaniline in neutral aqueous solution on inert and oxidizable metal
  24 September 2018, by Hugues BRISSET
• Interphases and durability in polymer based composite materials: characterization and modelization
  20 September 2018, by Hugues BRISSET
• Electroactive polyacrylates bearing linear conjugated systems based on EDOT moieties
  2 June 2017