Nanoparticle-sized magnetic absorption enhancers having three-dimensional geometries adapted for improved diagnostics and hyperthermic treatment
First Claim
1. A nanoparticle-sized magnetic absorption enhancer exhibiting a controlled response to a magnetic field, said magnetic absorption enhancer comprising:
- a) a magnetic material having an inductive thermal response to said magnetic field;
b) a coating embedding said magnetic material and conforming to a predetermined shape complementary to the shape of at least one other magnetic absorption enhancer, and producing a controlled mechanical response of said magnetic absorption enhancer to said magnetic field; and
c) a targeting moiety for specific binding of said magnetic absorption enhancer to a pathogen target;
wherein said controlled response comprises said inductive thermal response and said controlled mechanical response comprising an interaction between said magnetic absorption enhancer and said at least one other magnetic absorption enhancer.
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Accused Products
Abstract
Nanoparticle-sized magnetic absorption enhancers (MAEs) that exhibit a controlled response to a magnetic field, including a controlled mechanical response and inductive thermal response. The MAEs have a magnetic material that exhibits the inductive thermal response to the magnetic field and is embedded in a coating, such that the MAE conforms to a particular shape, e.g., a hemisphere, a dome or a shell, that is chosen to produce the desired controlled mechanical response of the entire MAE to the magnetic field. A targeting moiety for specifically binding the MAE to a pathogen target is also provided. The MAEs are preferably bound by a flexible linker to promote the desired mechanical response, which includes interactions between MAEs that are not bound to their pathogen target for the purpose of forming spheres, spherical shells, or generally spherical dimers. Such forms contain the thermal energy produced by the thermal inductive response of the magnetic material and thus reduce collateral healthy tissue damage during hyperthermic treatment. The inventing extends to appropriate apparatus and methods for diagnostics and hyperthermic treatments employing the MAEs.
107 Citations
24 Claims
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1. A nanoparticle-sized magnetic absorption enhancer exhibiting a controlled response to a magnetic field, said magnetic absorption enhancer comprising:
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a) a magnetic material having an inductive thermal response to said magnetic field; b) a coating embedding said magnetic material and conforming to a predetermined shape complementary to the shape of at least one other magnetic absorption enhancer, and producing a controlled mechanical response of said magnetic absorption enhancer to said magnetic field; and c) a targeting moiety for specific binding of said magnetic absorption enhancer to a pathogen target; wherein said controlled response comprises said inductive thermal response and said controlled mechanical response comprising an interaction between said magnetic absorption enhancer and said at least one other magnetic absorption enhancer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An apparatus for inducing transient hyperthermia in a pathogen target, said apparatus comprising:
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a) a means for generating a magnetic field; b) a nanoparticle-sized magnetic absorption enhancer exhibiting a controlled response to said magnetic field and comprising; i) a magnetic material having an inductive thermal response to said magnetic field; ii) a coating embedding said magnetic material and conforming to a predetermined shape, thereby producing a controlled mechanical response of said magnetic absorption enhancer to said magnetic field; and iii) a targeting moiety for specific binding of said magnetic absorption enhancer to a pathogen target; wherein said controlled response comprises said inductive thermal response and said controlled mechanical response comprises an interaction of said magnetic absorption enhancer with at least one other magnetic absorption enhancer to form a geometrical arrangement for containing said inductive thermal response. - View Dependent Claims (22, 23, 24)
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Specification