Receptor membranes
First Claim
1. A membrane comprising a closely packed array of self-assembling amphiphilic molecules, the membrane being characterized in the (1) the membrane includes a plurality of ion channels selected from the group consisting of podands, cryptands and coronands:
- (2) at least a proportion of the self assembling amphiphilic molecules comprise a receptor molecule conjugated with a supporting entity, the supporting entity being conjugated with the receptor molecule at a location from the receptor site.
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Accused Products
Abstract
A membrane comprising a closely packed array of self-assembling amphiphilic molecules, and is characterized in that it incorporates a plurality of ion channels, and/or at least a proportion of the self-assembling molecules comprise a receptor molecule conjugated with a supporting entity. The ion channel is selected from the group consisting of peptides capable of forming helices and aggregates thereof, corronands, cryptands, podands and combinations thereof. In the amphiphilic molecules comprising a receptor molecule conjugated with a supporting entity, the receptor molecule has a receptor site and is selected from the group consisting of immunoglobulins, antibodies, antibody fragments, dyes enzymes and lectins. "The supporting entity is selected from the group consisting of a lipid head group, a hydrocarbon chain(s), a cross-linkable molecule and a membrane protein. The supporting entity is attached to the receptor molecule at tan end remote from the receptor site. In preferred embodiments the ion channel is gramicidin A, and is preferable gated. Such membranes may be used in the formation of sensing devices.
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Citations
53 Claims
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1. A membrane comprising a closely packed array of self-assembling amphiphilic molecules, the membrane being characterized in the (1) the membrane includes a plurality of ion channels selected from the group consisting of podands, cryptands and coronands:
- (2) at least a proportion of the self assembling amphiphilic molecules comprise a receptor molecule conjugated with a supporting entity, the supporting entity being conjugated with the receptor molecule at a location from the receptor site.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 35, 38, 41, 44, 47, 49, 51)
- 13. A membrane comprising a closely packed array of self-assembling amphiphilic molecules, the membrane including a plurality of ion channels selected from the group consisting of podands, cryptands and coronands, a receptor moiety being attached to the ion channel at an end thereof, the receptor moiety being such that it normally exists in a first state, but when bound to an analyte exists in a second state, said change of state of the receptor moiety causing a change in the ability of ions to pass through the ion channel.
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19. A membrane comprising a closely packed array of self-assembling amphiphilic molecules, the membrane being characterized in that (1) the membrane includes a plurality of ion channels selected from the group consisting of peptides capable of forming helices and aggregates thereof;
- and (2) at least a proportion of the self assembling amphiphilic molecules comprise a receptor molecule conjugated with a supporting entity, the receptor molecule having a receptor site, the supporting entity being selected from the group consisting of hydrocarbon chains having lipid head groups and cross-linkable molecules, the supporting entity being conjugated with the receptor molecule at a location remote from the receptor site.
- View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 37, 40, 43, 46, 48, 50, 53)
Specification