Patent ID: 8882747

Claim:
A method of delivering a material, including: receiving a first electromagnetic control signal with a first electromagnetically responsive control element in a delivery device, the delivery device including a fluid-containing structure containing a delivery fluid and a primary material distributed between a first active form carried in the delivery fluid and a second form within the fluid containing structure, the primary material having a first effective concentration in the delivery fluid equal to the concentration of the first active form in the delivery fluid; responsive to receipt of the first electromagnetic control signal by the first electromagnetically responsive control element, modifying the distribution of the primary material between the first active form and the second form within the fluid containing structure through one or more of heating, cooling, vibrating, expanding, stretching, unfolding, contracting, deforming, softening, or folding of the electromagnetically responsive control element, the primary material having a second effective concentration in the delivery fluid following the modification of the distribution of the primary material between the first active form and the second form; pumping the delivery fluid containing the primary material at the second effective concentration from the fluid-containing structure of the delivery device to a downstream location; and filtering the second form of the primary material from the delivery fluid prior to pumping the delivery fluid containing the primary material at the second effective concentration from the fluid-containing structure of the delivery device to a downstream location.