Method for using nanodiamonds to detect nearby magnetic nanoparticles
First Claim
1. A method comprising:
- exposing a portion of vasculature in a human body to illumination, wherein the human body includes an in vivo imaging agent, wherein the in vivo imaging agent comprises functionalized nanodiamonds and functionalized magnetic nanoparticles, wherein each of the functionalized nanodiamonds contains at least one color center and is functionalized to selectively interact with an analyte in the portion of vasculature, wherein each of the magnetic nanoparticles is functionalized to selectively interact with the analyte in the portion of vasculature, and wherein the illumination causes individual color centers to emit light having one or more properties relating to proximity between the individual color centers and the functionalized magnetic nanoparticles;
detecting the one or more properties of the light emitted by the color centers in response to the illumination;
determining that an individual nanodiamond is proximate to at least one magnetic nanoparticle based on the detected one or more properties of the light emitted by the color centers of the individual nanodiamond in response to the illumination; and
determining that the individual nanodiamond and at least one magnetic nanoparticle are bound to the analyte based on the determination that the individual nanodiamond is proximate to the at least one magnetic nanoparticle.
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Accused Products
Abstract
An imaging agent for detecting analytes in an environment includes functionalized nanodiamonds and functionalized magnetic particles that can selectively interact with an analyte. Each functionalized nanodiamond contains at least one color center configured emit light in response to illumination. At least one property of the light emitted by the color centers is related to the proximity of the functionalized magnetic particles to the color centers. This property can be detected to determine that the functionalized nanodiamonds are proximate to the functionalized magnetic particles, to determine that the functionalized nanodiamonds and the functionalized magnetic particles are interacting with the analyte, or other applications. Devices and methods for detecting properties of the analyte by interacting with the functionalized nanodiamonds and functionalized magnetic particles are also provided.
10 Citations
18 Claims
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1. A method comprising:
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exposing a portion of vasculature in a human body to illumination, wherein the human body includes an in vivo imaging agent, wherein the in vivo imaging agent comprises functionalized nanodiamonds and functionalized magnetic nanoparticles, wherein each of the functionalized nanodiamonds contains at least one color center and is functionalized to selectively interact with an analyte in the portion of vasculature, wherein each of the magnetic nanoparticles is functionalized to selectively interact with the analyte in the portion of vasculature, and wherein the illumination causes individual color centers to emit light having one or more properties relating to proximity between the individual color centers and the functionalized magnetic nanoparticles; detecting the one or more properties of the light emitted by the color centers in response to the illumination; determining that an individual nanodiamond is proximate to at least one magnetic nanoparticle based on the detected one or more properties of the light emitted by the color centers of the individual nanodiamond in response to the illumination; and determining that the individual nanodiamond and at least one magnetic nanoparticle are bound to the analyte based on the determination that the individual nanodiamond is proximate to the at least one magnetic nanoparticle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A device comprising:
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a light source, wherein light emitted from the light source illuminates a portion of vasculature, wherein the portion of vasculature includes an in vivo imaging agent, wherein the in vivo imaging agent comprises functionalized nanodiamonds and functionalized magnetic nanoparticles, wherein each of the functionalized nanodiamonds contains at least one color center and is functionalized to selectively interact with an analyte in the portion of vasculature, wherein each of the magnetic nanoparticles is functionalized to selectively interact with the analyte in the portion of vasculature, and wherein the illumination causes individual color centers to emit light having one or more properties relating to proximity between the individual color centers and the functionalized magnetic nanoparticles; a light sensor, wherein the light sensor receives light emitted from the portion of vasculature, wherein the light sensor detects one or more properties of light emitted by the color centers in response to the illumination; and a controller, wherein the controller comprises at least one processor programmed to; operate the light source to illuminate the portion of vasculature, operate the light sensor to detect the one or more properties of light emitted by the color centers, determine that an individual nanodiamond is proximate to at least one magnetic nanoparticle based on the detected one or more properties of the light emitted by the color centers of the individual nanodiamond in response to the illumination; and determine that the individual nanodiamond and at least one magnetic nanoparticle are bound to the analyte based on the determination that the individual nanodiamond is proximate to the at least one magnetic nanoparticle. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification