Abstract: The invention relates to an ionogel that may be used for making a self-supporting film forming a solid electrolyte of an electrochemical device, to such a device incorporating this ionogel and to a process for manufacturing this ionogel. The invention generally applies to all energy storage devices such as supercapacitors or storage batteries (e.g. lithium-ion). An ionogel according to the invention comprises: a polymeric confinement matrix which comprises at least one polylactic acid, and at least one ionic liquid confined in this matrix. According to the invention, this matrix also comprises a polycondensate of at least one sol-gel molecular precursor bearing hydrolysable group(s).

Abstract: The invention relates to a monolithic ionogel with an organic confinement matrix for at least one ionic liquid, and a method for manufacturing same. An ionogel according to the invention comprises a biopolymer confinement matrix with a cross-linked polysaccharide base and an ionic liquid confined in a network formed by the matrix, and it is such that the polysaccharide has siloxane cross-linking bridges, the ionogel being a chemical gel able to constitute a self-supported solid electrolyte by itself. This ionogel is obtained using a method comprising silanisation of the polysaccharide in a basic aqueous solution by a silanisation agent, and polycondensation of the silanised polysaccharide. In a first embodiment, this method comprises preparing a hydrogel with a polysaccharide base that is silanised and cross-linked by sol-gel, then exchange reactions of solvents with increasing hydrophobicities.

Abstract: This invention concerns a colorimetric device for detecting, in an aqueous solution of interest, a hydrolytic enzymatic activity with regard to at least one polymer of interest. This device (1) includes (i) a substrate (2) and (ii) a transparent detection layer (3), including the said polymer of interest. This detection layer (3) is adapted so that, on the one hand, after application of the said aqueous solution of interest, when it is deprived of said hydrolytic enzymatic activity, it preserves the said first thickness e, and on the other, after the application of the said aqueous solution of interest, when it includes the said hydrolytic enzymatic activity, it has a second thickness e?, thinner than the said first thickness e, and the said first thickness e and/or the said second thickness e? of the said detection layer (3) are adapted to generate a color by an optical interference phenomenon caused by the recombining of the light beams reflected at the interfaces (4, 5) of the said detection layer (5).

Abstract: This invention concerns a colorimetric device for detecting, in an aqueous solution of interest, a hydrolytic enzymatic activity with regard to at least one polymer of interest. This device (1) includes (i) a substrate (2) and (ii) a transparent detection layer (3), including the said polymer of interest. This detection layer (3) is adapted so that, on the one hand, after application of the said aqueous solution of interest, when it is deprived of said hydrolytic enzymatic activity, it preserves the said first thickness e, and on the other, after the application of the said aqueous solution of interest, when it includes the said hydrolytic enzymatic activity, it has a second thickness e?, thinner than the said first thickness e, and the said first thickness e and/or the said second thickness e? of the said detection layer (3) are adapted to generate a colour by an optical interference phenomenon caused by the recombining of the light beams reflected at the interfaces (4, 5) of the said detection layer (5).