Université Joseph Fourier

Institut National Polytechnique De Grenoble

Institut National Des Sciences Appliquees De Toulouse

Vanessa Durrieu

Philippe Cinquin

François Lenouvel

Pierre Mozer

Naceur Belgacem

Stéphane Mathe

The invention relates to a device () for changing the pH of a solvent in which a substance is dissolved. The device includes a housing () in contact with the solvent through a housing wall () that is permissive to the solvent and the substance. The housing contains enzymes adapted for converting the substance in order to provide hydrogen or hydroxyle ions; the housing wall being non-permissive to the enzymes.

Method and device for changing the pH of a solution

An actuator that includes an enclosure having a wall impermeable to a first solute and permeable to a solvent and containing, at least temporarily, a catalyst capable of promoting the transformation of at least one second solute into the first solute to vary the osmotic pressure in the enclosure; and a deformable chamber connected to the enclosure, the chamber being capable of increasing in volume under the action of the solvent moving from the enclosure into the chamber by osmosis or the enclosure being designed to be arranged in contact with the solvent, the chamber being capable of increasing in volume under the action of the solvent penetrating into the enclosure by osmosis.

Chemical activation of an actuator or an osmotic motor

Growing community of inventors

Labege, France

Vanessa Durrieu