There is disclosed an aerosol-generation apparatus which is suitable for use as part of an aerosol-delivery system of a type which may be used as a smoking substitute. The fluid-transfer article comprises a first region for holding an aerosol precursor and for transferring said aerosol precursor to an activation surface of a second region of said article, said activation surface being disposed at an end of said article configured for thermal interaction with a heater of an aerosol-generation apparatus. The heating surface has at least one channel therein and is configured such that, the or each channel opposes said activation surface and opens towards said activation surface.