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09/2013 microcapsules de vanilline pour combattre des bactéries

vanillia Metor


Un groupe de chercheurs de la Université URV de Tarragone dirigés par docteur Ricard Garcia-Valls a tiré profit des propriétés antibactériennes de la vanilline pour développer des microcapsules qui peuvent être incorporées aux tissus et créer ainsi les rideaux antibactériens. Les travaux ont été menés à bien par le groupe de recherche du groupe Méteor de l'URV en collaboration avec le docteur Magdalena Constantí du NBG (nanobiotechnologie et BioanalysES).


.This new study has opened up the possibility of developing curtains with an antibacterial layer that resists odours and gives off a scent of vanilla. The technology has been developed at the URV and opens the door to new medical applications in preventing the spread of hospital infections through bed linen and other objects. The results of the research have been published in an article in the scientific journal Industrial & Engineering Chemistry Research of the American Chemical Society.

The article points out that vanillin (the principal ingredient in the vanilla extract that can be found in any supermarket) offers more than just a pleasant smell because it can also combat microbes including Staphylococcus aureus, a bacterium responsible for many of the infections contracted in hospitals. The research team decided to use microcapsule technology as a means of incorporating both the fresh aroma and the antibacterial properties of vanilla into curtains.

This has resulted in the microencapsulation of vanilla in small capsules made of polysulfone, a heat resistant plastic. These capsules were then embedded in layers of cotton. The study shows that curtains containing these microcapsules resist the growth of Staphylococcus aureus bacteria and that the coating remains intact after several dry-cleaning cycles. The scientists believe that this research has opened the way for the development of further antibacterial and pleasant smelling fabrics.


Création de la web : Claude Garcia

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