Controlled delivery of bioactive agents from decomposable films
First Claim
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1. A decomposable thin film, comprising:
- at least one multilayer repeat unit, the multilayer repeat unit including at least a first polyelectrolyte layer and a second polyelectrolyte layer, the first polyelectrolyte layer having a first electrostatic charge and the second polyelectrolyte layer having a second electrostatic charge, the first and second electrostatic charges being opposite, wherein;
the first polyelectrolyte layer comprises a polycyclodextrin; and
the second polyelectrolyte layer comprises a degradable polyelectrolyte,wherein the polycyclodextrin is non-covalently associated with a bioactive agent, andwherein the bioactive agent is a hydrophobic molecule.
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Abstract
A decomposable thin film includes a plurality of multilayer units including a first layer having a first charge and a second layer having a second charge, wherein at least a portion of the multilayers includes a polymeric cyclodextrin associated with a bioactive agent, wherein decomposition of the thin film is characterized by sequential removal of at least a portion of the layers having the first charge and degradation of layers having the second charge and by release of the bioactive agent from a corresponding layers; wherein the decomposable thin film including at least one degradable polyelectrolyte layer that is hydrolyzable.
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Citations
36 Claims
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1. A decomposable thin film, comprising:
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at least one multilayer repeat unit, the multilayer repeat unit including at least a first polyelectrolyte layer and a second polyelectrolyte layer, the first polyelectrolyte layer having a first electrostatic charge and the second polyelectrolyte layer having a second electrostatic charge, the first and second electrostatic charges being opposite, wherein; the first polyelectrolyte layer comprises a polycyclodextrin; and the second polyelectrolyte layer comprises a degradable polyelectrolyte, wherein the polycyclodextrin is non-covalently associated with a bioactive agent, and wherein the bioactive agent is a hydrophobic molecule. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification