Polyvalent functionalized nanoparticle-based in vivo diagnostic system
First Claim
1. A system comprising:
- polyvalent functionalized nanoparticles for binding with one or more target analytes on a surface of a cell present in an environment;
a detector for detecting;
an analyte response signal transmitted from the environment, wherein the analyte response signal is related to binding of the one or more target analytes on the cell surface with the polyvalent functionalized nanoparticles; and
an unbound polyvalent functionalized nanoparticle signal transmitted from the environment related to polyvalent functionalized nanoparticles that are not interacting with the one or more target analytes;
a modulation source for modulating the analyte response signal and the unbound nanoparticle signal, such that the analyte response signal is affected differently than the unbound nanoparticle signal; and
a processor for non-invasively detecting the one or more target analytes on the cell surface by differentiating the analyte response signal from the unbound nanoparticle signal, based, at least in part, on the modulation,wherein the modulation source alters one or more properties of the polyvalent functionalized nanoparticles that are bound to the one or more target analytes on the cell surface and wherein the one or more properties of the polyvalent functionalized nanoparticles comprises one or more of;
optical properties, magnetic properties, electric properties, thermal properties, acoustic properties, chemical properties, and physical properties.
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Accused Products
Abstract
A system for modulating a response signal includes polyvalent functionalized nanoparticles configured to bind with target analytes located on a surface of a cell, a detector configured to detect an analyte response signal transmitted from the body, a modulation source configured to modulate the analyte response signal, and a processor configured to non-invasively detect the one or more target analytes by differentiating the analyte response signal from a background signal, at least in part, based on the modulation. The analyte response signal is related to the binding interaction of the target analytes on the cell surface with the polyvalent functionalized nanoparticles. In some examples, the system may also include magnetic particles and a magnetic field source sufficient to distribute the magnetic particles into a spatial arrangement in the body. The analyte response signal may be differentiated from the background signal, at least in part, based on modulation of the signals due, at least in part, to the spatial arrangement of the magnetic particles.
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Citations
26 Claims
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1. A system comprising:
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polyvalent functionalized nanoparticles for binding with one or more target analytes on a surface of a cell present in an environment; a detector for detecting; an analyte response signal transmitted from the environment, wherein the analyte response signal is related to binding of the one or more target analytes on the cell surface with the polyvalent functionalized nanoparticles; and an unbound polyvalent functionalized nanoparticle signal transmitted from the environment related to polyvalent functionalized nanoparticles that are not interacting with the one or more target analytes; a modulation source for modulating the analyte response signal and the unbound nanoparticle signal, such that the analyte response signal is affected differently than the unbound nanoparticle signal; and a processor for non-invasively detecting the one or more target analytes on the cell surface by differentiating the analyte response signal from the unbound nanoparticle signal, based, at least in part, on the modulation, wherein the modulation source alters one or more properties of the polyvalent functionalized nanoparticles that are bound to the one or more target analytes on the cell surface and wherein the one or more properties of the polyvalent functionalized nanoparticles comprises one or more of;
optical properties, magnetic properties, electric properties, thermal properties, acoustic properties, chemical properties, and physical properties. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 23, 26)
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10. A system, comprising:
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polyvalent functionalized nanoparticles for binding with one or more target analytes on a surface of a cell present in an environment; a detector for detecting a response signal transmitted from the environment, wherein the response signal includes a background signal and an analyte response signal related to binding of the one or more target analytes with polyvalent functionalized nanoparticles; magnetic particles; a magnetic field source sufficient to distribute the magnetic particles into a spatial arrangement in the environment, wherein the spatial arrangement of the magnetic particles modulates the analyte response signal, such that the analyte response signal is affected differently than the background signal; and a processor for non-invasively detecting the one or more target analytes by differentiating the analyte response signal from the background signal based, at least in part, on modulation of the analyte response signal, wherein the analyte response signal is modulated differently than the background signal or modulated differently than the unbound particle signal. - View Dependent Claims (11, 12, 13, 14, 15, 16, 24)
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17. A method comprising:
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introducing polyvalent functionalized nanoparticles into an environment for binding with one or more target analytes on a surface of a cell present in the environment; detecting an analyte response signal transmitted from the environment, wherein the analyte response signal is related to binding of the one or more target analytes with the polyvalent functionalized nanoparticles and wherein the response signal is modulated; detecting an unbound polyvalent functionalized nanoparticle signal transmitted from the environment, wherein the unbound nanoparticle signal is related to polyvalent functionalized nanoparticles that are not interacting with the one or more target analytes; detecting a background signal; applying a modulation to a portion of the environment for altering the analyte response signal and the unbound nanoparticle signal, such that the analyte response signal is affected differently than the unbound nanoparticle signal and the background signal; and differentiating the analyte response signal from the unbound nanoparticles signal and the background signal. - View Dependent Claims (18, 19, 20, 21, 22, 25)
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Specification