US Patent 8001977 - Moving magnetic nanoparticles through tissue

http://www.freepatentsonline.com/8001977.html

This patent from NanoBioMagnetics Inc. teaches how a pulsating magnetic field can improve the permeation of magnetic particles through living tissue or membrane which can be useful for the delivery of anti-cancer drugs. Claim 1 reads:

1. A method of using a magnetic field to move magnetically responsive nanoparticles through a membrane within a body comprising the following step:

moving the nanoparticles through the membrane using a primary magnet to direct the nanoparticles in a primary direction, and at the same time, one or more secondary magnets directed at an acute angle relative to the primary direction, wherein the secondary magnets are controlled to repetitively vary the direction of the resultant magnetic field gradient in a pulsating manner.

US Patent 7819795 - Nanoparticle hearing aid

http://www.freepatentsonline.com/7819795.html

This patent from NanoBioMagnetics(R) teaches using ferromagnetic nanoparticles in a device for improving hearing. Claim 1 reads:

1. A system for affecting a function of a mammal, the system comprising:

a single-domain nanoparticle, the nanoparticle being constructed to affix in a mammal ear, the ear comprising a cell, wherein the nanoparticle comprises a biocompatible covering having a binding moiety of a cell adhesion molecule adapted to bind the nanoparticle to the cell; and

a transmitter assembly adapted to be supported on the mammal, wherein the transmitter assembly transmits a magnetic field that causes a movement of the nanoparticle;

wherein the movement of the nanoparticle affects the function of the mammal.

US Patent 7344491 - Magnetically responsive nanoparticles for hearing aid

http://www.freepatentsonline.com/7344491.html

Nanobiomagnetics is a company devoted to using magnetic nanoparticles for targeted therapeutic delivery. This patent discloses magnetic nanoparticles used as a component of a hearing aid. Claim 1 reads:

1. A method for affecting a function of a mammalian ear, the method comprising: moving at least a single-domain magnetically responsive nanoparticle into a cell of the ear using a controllable first magnetic field; supporting the nanoparticle in the ear of the mammal; and transmitting a second magnetic field to move the nanoparticle.