Abstract: The invention concerns an electronic label (2) designed to be affixed on an article, the label comprising a central unit (5) including storage means (8) wherein are stored an identification code of the label and temporal data related to the article storage and also a time clock (7) and comparison means (9) for comparing the recorded temporal data with the time information supplied by the clock, the label further comprising communication means (4, 15). The central unit (5) is adapted to activate the communication means (4, 15) to transmit a warning message to an external device (1) when the time information supplied by the clock are in predetermined relationship with the recorded temporal data.

Abstract: A polar lipid composition of plant origin is provided for conveying an active agent and/or making it penetrate into a target cell. The composition is characterized in that it is comprised of an injectable, intra-articular, topical or ingestible aqueous emulsion of a polar lipid mixture rich in phospholipids, in glycolipids and in ceramides, having a composition which is substantially similar to that of the polar lipid constituents of lipid cytomembranes of cells. The mixture is obtained from a plant compound such as cereal flour or an extract such as bran or lipids extracted from cereals by means of chlorinated solvents.