Abstract: The invention relates to a method for bonding, onto a carrier, active molecules having an activity either against undesirable organisms or phenomena, or promoting a desired phenomenon. The method comprises: preparing a chemical composition containing at least cationic micelles each including at least one active molecule; impregnating the carrier with the cationic micelle chemical composition; bonding the active molecules onto the carrier by creating at least one electrostatic bond between the cationic micelles and the carrier. The invention also relates to an active element including a carrier and active molecules bonded onto said carrier and having an activity either against undesired organisms or phenomena, or promoting a desired phenomenon. The active element includes cationic micelles bonded onto said carrier by at least one electrostatic bond and each including at least one active molecule.