Département de chimie moléculaire

The invention is in the tech. field of bioelectrodes. The objective of the present invention is to provide a novel bioelectrode coated with a membrane, the membrane being capable to make the bioelectrode biocompatible and being stable and bound to the rest of the bioelectrode over time. This novel bioelectrode is coated with a gel of modified polysaccharide comprising a conjugated System. The fact that the coating is made from polysaccharide makes the bioelectrode biocompatible and the conjugated System attached to the polysaccharide makes good interaction possible, esp. by pi-stacking, between an electron conductor material of the bioelectrode and the membrane, therefore preventing disbonding of the membrane over time. The invention also relates to a method for producing such a bioelectrode and a specified hydrogel used to coat the electrode. [on SciFinder(R)]