Concept

Huile essentielle

Publications associées (32)

Investigation of the Release of Bioactive Volatiles from Amphiphilic Multiarm Star-Block Copolymers by Thermogravimetry and Dynamic Headspace Analysis

Harm-Anton Klok, John Christopher Plummer, Céline Ternat

Amphiphilic multiarm star-block copolymers with a hydrophobic inner and a hydrophilic outer shell have been used to encapsulate hydrophobic bioactive volatiles in aqueous media under realistic application conditions. The release rates of the bioactive comp ...

2008

Immobilization of rapeseed press-cake in an alginate matrix for the sorption of atrazine

Urs von Stockar, Ian William Marison, Véronique Breguet, Julien Boucher

Due to residual oil retained within it, rapeseed press-cake has been shown to be effective for the removal of atrazine from water through an absorption mechanism. However, it is difficult to put this into practice due to the hygroscopic nature of the press ...

2008

Amphiphilic multi-arm star-block copolymers for encapsulation of fragrance molecules

Harm-Anton Klok, John Christopher Plummer, Céline Ternat

Novel amphiphilic multi-arm star-block copolymers with a hyperbranched core, a hydrophobic inner shell, and a hydrophilic outer shell have been prepared from a commercial hyperbranched polyester macroinitiator by ring-opening polymerization of -caprolacton ...

2007

Assainissement microbiologique de l'air et des systèmes de ventilation au moyen d'huiles essentielles

Ventilation systems often host bacteria and fungi that may be dangerous for the health of exposed people. Essential oils are one means among others to prevent microbial development. Used as a basis for many traditional therapies, these odorant plant extrac ...

EPFL2006

Indoor air purification and ventilation systems sanitation with essential oils

Claude-Alain Roulet

2006

Chemical investigations on the thermal behaviour of wood during friction welding

Bernhard Stamm, Julius Natterer

Friction welding is a new technology in the course of which wood pieces are subjected to circular or linear movements in a welding machine. The wood in the contact zone is heated and melted. Aiming at a better understanding of the thermal alteration of woo ...

2006

Model surfaces for human hair

The thesis describes the development of surfaces that model the surface of human hair in order to characterize the adsorption of detergents and perfumes. Three types of model surfaces were investigated consisting of (i) a self-assembled monolayer of protei ...

EPFL2006

Gpi17p does not stably interact with other subunits of glycosylphosphatidylinositol transamidase in Saccharomyces cerevisiae

Patrick Fraering

Homologues of Gpi8p, Gaa1p, Gpi16p, Gpi17p, and Cdc91p are essential components of the GPI transamidase complex that adds glycosylphosphatidylinositols (GPIs 1) to newly synthesized proteins in the ER. In mammalian cells, these five subunits remain stably ...

2005

Liquid-core capsules as a tool in biotransformations

The aim of this thesis was to develop a new type of liquid-core capsules obtained by co-extrusion using the laminar jet break-up technique. These capsules, composed of an organic phase as the core and a hydrogel membrane, were meant to be applied as an in- ...

EPFL2005

A model of transport nonuniversality in thick-film resistors

Peter Ryser, Claudio Grimaldi, Thomas Maeder

We propose a model of transport in thick-film resistors which naturally explains the observed nonuniversal values of the conductance exponent t extracted in the vicinity of the percolation transition. Essential ingredients of the model are the segregated m ...

2003

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