Implantable biosensor from stratified nanostructured membranes
First Claim
1. A biosensor/detector apparatus comprising:
- an external excitation electronic component adapted to generate an input waveform,a biosensor membrane component comprising;
a multiple layered film including;
at least two layer-by-layer assembled (LBL) layers, each LBL layer including at least one positively charged layer and at least one negatively charged layer, where the layers alternate between a positively charged layer and a negatively charged layer,at least one responsive layer interposed between the two LBL layers, where the responsive layer has a detectable property that undergoes a change due to a change in a concentration of a target agent associated with a biological system,at least one of the negatively charged layers includes a detection enhancing component comprising nano-particles, where the detection enhancing component improves detection of the detectable property of the at least one responsive layer, andat least one bio-compatible layer deposited on each LBL layer, where the bio-compatible layer reduces cytotoxicity of the detection enhancing components,where the membrane component is adapted to be placed in contact with or implanted into a living biological system and where the member interacts with the input waveform to produce an output waveform,an external detection electronic component adapted to receive the output waveform and to generate a response signal corresponding to the output waveform, where the response signal corresponds to a value of the detectable property of the at least one responsive layer, and an external analyzer adapted to convert the response signal into a corresponding value of the detectable property, which corresponds to a concentration of the target agent associated with the living biological system.
5 Assignments
0 Petitions
Accused Products
Abstract
A new class of biosensors and methods for making and using same are disclosed. The biosensors are multi-layered membrane composites, where at least one layer is prepared by the layer-by-layer process and at least one layer is responsive to changes is a property of a biological system such as changes in the concentration of an atom, ion, molecule or molecular assembly. Because the biosensors are multi-layered, a single biosensor is capable monitor a number of different properties of a biological system simultaneously. The biosensors are monitored by systems that impinge an excitation waveform on the biosensors and analyze a reflected and/or a transmitted resultant waveform. Additionally, the biosensors can be associated with field activated electronic components so that implantable, self-contained analytical devices can be constructed and monitored by field generators, where data is transmitted to an analyzer after field activation.
-
Citations
46 Claims
-
1. A biosensor/detector apparatus comprising:
-
an external excitation electronic component adapted to generate an input waveform, a biosensor membrane component comprising; a multiple layered film including; at least two layer-by-layer assembled (LBL) layers, each LBL layer including at least one positively charged layer and at least one negatively charged layer, where the layers alternate between a positively charged layer and a negatively charged layer, at least one responsive layer interposed between the two LBL layers, where the responsive layer has a detectable property that undergoes a change due to a change in a concentration of a target agent associated with a biological system, at least one of the negatively charged layers includes a detection enhancing component comprising nano-particles, where the detection enhancing component improves detection of the detectable property of the at least one responsive layer, and at least one bio-compatible layer deposited on each LBL layer, where the bio-compatible layer reduces cytotoxicity of the detection enhancing components, where the membrane component is adapted to be placed in contact with or implanted into a living biological system and where the member interacts with the input waveform to produce an output waveform, an external detection electronic component adapted to receive the output waveform and to generate a response signal corresponding to the output waveform, where the response signal corresponds to a value of the detectable property of the at least one responsive layer, and an external analyzer adapted to convert the response signal into a corresponding value of the detectable property, which corresponds to a concentration of the target agent associated with the living biological system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A biosensor/detector apparatus comprising:
-
a membrane comprising; an excitation electronic component adapted to generate an input waveform, a biosensor component comprising; at least two layer-by-layer assembled (LBL) layers, each LBL layer including at least one positively charged layer and at least one negatively charged layer, where the layers alternate between a positively charged layer and a negatively charged layer, at least one responsive layer interposed between the two LBL layers, where the responsive layer has a detectable property that undergoes a change due to a change in a concentration of a target agent associated with a biological system, at least one of the negatively charged layers includes a detection enhancing component comprising nano-particles, where the detection enhancing component improves detection of the detectable property of the at least one responsive layer, and at least one bio-compatible layer deposited on each LBL layer, where the bio-compatible layer reduces cytotoxicity of the detection enhancing components, where the biosensor component interacts with the input waveform to produce an output waveform, and a detection electronic component adapted to receive the output waveform and to generate a response signal corresponding to the output waveform, where the response signal corresponds to a value of the detectable property of the at least one responsive layer and where the detection electronic component includes a transmitter for transmitting the response signal, where the components are collinearly disposed with the biosensor component interposed between the excitation electronic component and the detection electronic component and where the membrane is adapted to be placed in contact with or implanted into a living biological system, and an external analyzer adapted to convert the response signal into a corresponding value of the detectable property, which corresponds to a concentration of the target agent associated with the living biological system. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
-
-
32. A biosensor/detector apparatus comprising:
-
a membrane comprising; an excitation electronic component adapted to generate an input waveform, a biosensor component comprising; at least two layer-by-layer assembled (LBL) layers, each LBL layer including at least one positively charged layer and at least one negatively charged layer, where the layers alternate between a positively charged layer and a negatively charged layer, at least one responsive layer interposed between the two LBL layers, where the responsive layer has a detectable property that undergoes a change due to a change in a concentration of a target agent associated with a biological system, at least one of the negatively charged layers includes a detection enhancing component comprising nano-particles, where the detection enhancing component improves detection of the detectable property of the at least one responsive layer, at least one bio-compatible layer deposited on each LBL layer, where the bio-compatible layer reduces cytotoxicity of the detection enhancing components, and a mesh surrounding the biosensor, where the biosensor component interacts with the input waveform to produce an output waveform, and a detection electronic component adapted to receive the output waveform and to generate a response signal corresponding to the output waveform, where the response signal corresponds to a value of the detectable property of the at least one responsive layer and where the detection electronic component includes a transmitter for transmitting the response signal, where the components are collinearly disposed with the biosensor component interposed between the excitation electronic component and the detection electronic component and where the membrane is adapted to be placed in contact with or implanted into a living biological system, and an external analyzer adapted to convert the response signal into a corresponding value of the detectable property, which corresponds to a concentration of the target agent associated with the living biological system. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
-
Specification