Abstract: A biological polymer assembly with a biological polymer that contains at least 90 percent of tubulin and a positively charged segment. The positively charged segment has a molecular weight of at least about 5,000 Daltons, a bulk electrical conductivity of at least about 10?7 ohms?1 meter?1 Siemens, a concentration of elemental charges per cubic centimeter of from about 1012 to about 1025, and a length of at least about 2 nanometers.

Abstract: A medical device comprised of a coating that inhibits distortion of medical resonance images taken of the device. When the device is exposed to radio frequency electromagnetic radiation with a frequency of from 10 megahertz to about 200 megahertz, at least 90 percent of such radio frequency electromagnetic radiation penetrates to the lumen of the device; and the concentration of the radio frequency electromagnetic radiation that penetrates to the lumen of the device is substantially identical at different points within such interior. The coating is comprised of magnetic material with an average particle size of less than about 40 nanometers.

Abstract: A metallic stent that, when it is contacted with an input alternating current electromagnetic field and a static magnetic field that contacts biological matter located within the stent, an output signal is produced that that has a fixed phase relationship with the input signal and that has a magnitude that is at least about 0.01 times as great as the magnitude of the input signal.

Abstract: A coated assembly comprised of a coating that has a relative magnetic permeability of at least 1.1 over the range of frequencies of from about 10 megahertz to about 200 megahertz, an increase of such relative magnetic permeability over such range of from about 1×10?14 to about 1×10?6 per hertz, and a magnetization, when measured at a direct current magnetic field of 2 Tesla, of from about 0.1 to about 10 electromagnetic units per cubic centimeter.

Abstract: An implantable medical device assembly that contains magnetic material with a saturation magnetization of at least about 0.15 Tesla and which has a direct current permeability at a static magnetic field value of 1.5 Tesla of at least 1.1. When the magnetic material and is simultaneously subjected to an alternating current electromagnetic field with a frequency of 64 megahertz and a static magnetic field of 1.5 Tesla, it has a magnetization of less than 100 electromagnetic units per cubic centimeter.

Abstract: A fiber assembly comprised of nanoparticles, wherein said nanoparticles are a mixture of nanomagnetic particles and nanooptical particles.

Abstract: An implantable medical assembly that contains a substrate, and nanomagnetic material and a therapeutic agent located over the substrate. A barrier is located between the therapeutic agent and biological material. When the assembly is exposed to electromagnetic radiation, the barrier between the biological material and the therapeutic agent is removed.

Abstract: An implantable medical device that contains two coating layers disposed above at least one of its surfaces. The first coating layer contains a biologically active material; and the second coating layer contains a polymeric material and nanomagnetic material disposed on the first coating layer; the second coating layer is substantially free of the biologically active material. The nanomagentic material has a saturation magentization of from about 2 to about 3000 electromagnetic units per cubic centimeter, and it contains nanomagnetic particleswith an average particle size of less than about 100 nanometers; the average coherence length between adjacent nanomagnetic particles is less than 100 nanometers.

Abstract: An anti-mitotic compound with a molecular weight of at least 150 grams per mole, a mitotic index factor of at least 10 percent, a positive magnetic susceptibility of at least 1,000×10?6 cgs, and a magnetic moment of at least 0.5 bohr magnetrons. The compound contains at least 7 carbon atoms and at least one inorganic atom with a positive magnetic susceptibility of at least 200×10?6 cgs.

Abstract: An assembly with a substrate, nanomagnetic material and magetoresistive material. The nanomagnetic material has a saturation magentization of from about 2 to about 3000 electromagnetic units per cubic centimeter; and it contains nanomagnetic particles with an average particle size of less than about 100 nanometers. The average coherence length between adjacent nanomagnetic particles is less than 100 nanometers.

Abstract: An assembly that contains a medical device and biological material within which the medical device is disposed.