Sensitivity and selectivity of ion channel biosensor membranes
First Claim
1. A biosensor comprising a plurality of discrete, substantially identical membranes, each membrane including at least one gated ion channel, the conductance of each membrane being measurable independently of the conductance of the other membranes, each of said membranes comprising a closely packed array of self-assembling amphophilic molecules, at least one dedicated electrode provided on one side of the membrane which cooperates with an electrode on the other side of the membrane to enable the application of an electrical potential across the membrane, the at least one gated ion channel having a conductance which is dependent upon the electric potential applied across the membrane.
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Abstract
The present invention provides a biosensor comprising at least one lipid membrane, each membrane including at least one gated ion channel. The membranes comprise a closely packed array of self-assembly amphophilic molecules and the gated ion channel has a conductance which is dependent upon an electric field applied across the membrane. The biosensor of the present invention may comprise a plurality of discrete membranes each including at least one gated ion channel. The conductance of each of the membranes is measurable independently of the conductance of the other membranes.
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Citations
38 Claims
- 1. A biosensor comprising a plurality of discrete, substantially identical membranes, each membrane including at least one gated ion channel, the conductance of each membrane being measurable independently of the conductance of the other membranes, each of said membranes comprising a closely packed array of self-assembling amphophilic molecules, at least one dedicated electrode provided on one side of the membrane which cooperates with an electrode on the other side of the membrane to enable the application of an electrical potential across the membrane, the at least one gated ion channel having a conductance which is dependent upon the electric potential applied across the membrane.
- 4. A biosensor comprising a plurality of discrete substantially identical membranes, each membrane including at least one gated ion channel, each of said membranes comprising a closely packed array of self-assembling amphophilic molecules, the conductance of each of said membranes being measurable independently of the conductance of the other membranes, at least one dedicated electrode provided on one side of the membrane which cooperates with an electrode on the other side of the membrane to enable the application of an electric potential across the membrane, the signal applied to or measured from the discrete membranes.
Specification