Personal web page : http://iramis.cea.fr/Phocea/Membres/Annuaire/index.php?uid=carrot
Laboratory link : http://iramis.cea.fr/nimbe/licsen/
Microbial multiplication is one of the most serious concerns for many commercial applications, particularly food packaging where the product deterioration is closely linked to both economic and environmental concerns (decrease of food waste by increasing the DLC, limit date of consumption). In this particular domain, the challenge is double: 1-to limit the growth of the total flora (to prevent the multiplication responsible for alteration), and 2-to preserve a certain amount of endogenous bacteria useful for an appropriate maturation of the fresh food product. The expected effect is therefore more bacteriostatic than fully antibacterial. We need materials that are both contact-active and biocide. In this context, stable cationic polymers are particularly interesting (low MCI in solution, Minimum Concentration for Inhibition) and the challenge here will be to develop a robust and efficient method to graft them onto various substrates such as glass, stainless steel and particularly polyolefins that are widely used in food packaging. This thesis project involves two academic Labs: CEA/NIMBE-LICSEN, expert in surface chemistry and AgroParisTech/INRA-MICALIS specialized in the study of bio-adhesion and biofilms. Industrial partners are also involved in this project.