| abstract |
Herein is described compositions and methods for modulating and regulating the concentration of a chemical target in an organism or in an ecosystem. In one embodiment, the concentration is regulated such that it is maintained below or above a certain threshold, thus avoiding toxic or harmful effects of the chemical target. The described compositions may, for example, be implanted in a human body or placed in the ecosystem. The compositions comprise binding moieties that reversibly bind to a chemical target in the organism or ecosystem. The binding capacity and the binding constants for a chemical target are designed such that the composition maintains the concentration of the chemical target substantially within a beneficial range of concentrations. |