Tubular nanostructure targeted to cell membrane
First Claim
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1. A tubular nanostructure comprising:
- a hydrophobic surface region flanked by two hydrophilic surface regions configured to form a pore in a lipid bilayer membrane of a cell, at least one cell type specific ligand attached to the tubular nanostructure and configured to bind one or more cell type specific cognates on the membrane, and a binding moiety associated with one or both ends of the tubular nanostructure, the binding moiety having a structure to reversibly bind an agent, wherein controlled dissociation of the agent from the binding moiety results in passage of the agent through the pore formed by the tubular nanostructure in the lipid bilayer of the cell, and wherein the agent includes at least one of a therapeutic agent or a toxin.
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Abstract
Devices, compositions, and methods are described which provide a tubular nanostructure or a composite tubular nanostructure targeted to a lipid bilayer membrane. The tubular nanostructure includes a hydrophobic surface region flanked by two hydrophilic surface regions. The tubular nanostructure is configured to interact with a lipid bilayer membrane and form a pore in the lipid bilayer membrane. The tubular nanostructure may be targeted by including at least one ligand configured to bind to one or more cognates on the lipid bilayer membrane of a target cell.
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Citations
43 Claims
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1. A tubular nanostructure comprising:
- a hydrophobic surface region flanked by two hydrophilic surface regions configured to form a pore in a lipid bilayer membrane of a cell, at least one cell type specific ligand attached to the tubular nanostructure and configured to bind one or more cell type specific cognates on the membrane, and a binding moiety associated with one or both ends of the tubular nanostructure, the binding moiety having a structure to reversibly bind an agent, wherein controlled dissociation of the agent from the binding moiety results in passage of the agent through the pore formed by the tubular nanostructure in the lipid bilayer of the cell, and wherein the agent includes at least one of a therapeutic agent or a toxin.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 38, 39, 40, 41, 42, 43)
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21. A composite tubular nanostructure comprising:
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two or more nanotubes wherein at least one nanotube includes a hydrophobic surface region, each hydrophobic surface region flanked by two hydrophilic surface regions configured to form a pore in a lipid bilayer membrane of a cell; at least one cell type specific ligand attached to the tubular nanostructure and configured to bind one or more cell type specific cognates on the lipid bilayer membrane of the cell; a binding moiety associated with one or both ends of the at least one nanotube, the binding moiety having a structure to reversibly bind an agent, wherein controlled dissociation of the agent from the binding moiety results in passage of the agent through the pore formed by the at least one nanotube, and wherein the agent includes at least one of a therapeutic agent or a toxin; and one or more active transport polypeptide elements configured to reversibly block the pore to control transport of molecules through the tubular nanostructure. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification