Smartcells, Inc.

Matthew Nalewanski

Todd C Zion

Thomas M Lancaster

A conjugate that includes a drug covalently linked to a polymer. Upon administration, the conjugate is digested by an enzyme that is present at the site of administration thereby releasing a therapeutic agent. The conjugate may demonstrate substantially the same pharmacokinetic and pharmacodynamic behavior as the drug itself. A material for controllably releasing a conjugate in response to the local concentration of a molecular indicator. The material includes a plurality of conjugates and a plurality of multivalent cross-linking agents. The polymers of the conjugates include an analog of the indicator within their covalent structure. The multivalent cross-linking agents include cross-link receptors that interact with the indicator analog and thereby cross-link the conjugates. These non-covalent interactions are competitively disrupted when an amount of the molecular indicator is present thereby causing the material to release the conjugate in a manner that is dependent on the local concentration of indicator.

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Angleton, TX, United States of America

Matthew Nalewanski