▎ 摘　　要

NOVELTY - Benefit agent delivery system comprises first electrode layer, microcell layer comprising many microcells, each microcell of the many microcells comprising an opening, each microcell of the microcells comprising a metallic layer and a medium, the metallic layer comprising a metal and spanning the opening of each microcell of the microcells, and the medium comprising a carrier and a benefit agent, a sealing layer located adjacent to the metallic layer of the microcell layer, and a second electrode layer, the first electrode layer, the microcell layer, the sealing layer and the second electrode layer being vertically stacked upon each other in this order, where when a voltage is applied from a voltage source between the first electrode layer and the second electrode layer across a microcell at least a portion of the metallic layer is removed from the opening of the microcell. USE - The system is useful for: delivering controlled and extended release of benefit agents in different forms e.g. solid, liquid and gas to different locations and under various conditions. No biological data given. ADVANTAGE - The system is small, simple, inexpensive, versatile, and safe delivery systems for delivering benefit agents on demand. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: operating benefit agent delivery system comprising providing a benefit agent delivery system, applying voltage potential difference between the first electrode layer and the second electrode layer across microcell that causes the removal of at least a portion of die metallic layer from the opening of the microcell, enabling the release of the benefit agent from the benefit agent delivery system; and manufacturing benefit delivery system comprising providing empty microcell array comprising first electrode layer, and microcell layer comprising many microcells, where each microcell of the microcells comprising an opening, depositing metal onto surface of each microcell of the microcells, the surface being opposite to the opening, filling each microcell of the microcells with a benefit agent and a carrier, sealing each microcell of the microcells with a sealing layer, the sealing layer spanning the opening of each microcell of the microcells, depositing second electrode layer onto the sealing layer and applying an electric field between the first electrode and the second electrode layer, the first electrode being anode and the second electrode layer being cathode for each microcell, where the application of the electric field causes at least a portion of the metal of each microcell to be removed from the surface of the microcell that is opposite to the opening of each microcell and re-deposited onto surface spanning the microcell opening and adjacent to the sealing layer.