Magnetic Property Of Nanomaterial Patents (Class 977/838)
  • Publication number: 20120329124
    Abstract: The present invention relates to a magnetic reagent, a magnetic reagent kit, a method for treating magnetic carriers, and a treatment device therefor, with an object of quickly and efficiently treating magnetic carriers of a micro particle diameter including nanosized magnetic carriers. The magnetic reagent or magnetic reagent kit includes: a plurality of magnetic carriers which can be magnetized by being exposed to a magnetic field, can be bonded to a predetermined chemical substance or living organism in a liquid, and that have a particle diameter that enables them to be suspended in the liquid; and a plurality of treatment promoting magnetic particles which can be magnetized by being exposed to a magnetic field and thus can have the magnetic carriers adsorbed on the surface thereof, are formed so that they can be moved within the liquid by movement of the liquid or by a magnetic field, and promote a treatment for capturing or re-suspension of the magnetic carriers.
    Type: Application
    Filed: November 12, 2010
    Publication date: December 27, 2012
    Applicant: UNIVERSAL BIO RESEARCH CO., LTD.
    Inventor: Hideji Tajima
  • Publication number: 20120309904
    Abstract: The present invention provides hierarchical assemblies of a block copolymer, a bifunctional linking compound and a nanoparticle. The block copolymers form one micro-domain and the nanoparticles another micro-domain.
    Type: Application
    Filed: October 18, 2010
    Publication date: December 6, 2012
    Applicant: The Regents of the University of California
    Inventors: Ting Xu, Yue Zhao, Kari Thorkelsson
  • Publication number: 20120286920
    Abstract: A composite material can include a grain component and a nanostructured grain boundary component. The nanostructured grain boundary component can be insulating and magnetic, so as to provide greater continuity of magnetization of the composite material. The grain component can have an average grain size of about 0.5-50 micrometers. The grain boundary component can have an average grain size of about 1-100 nanometers. The nanostructured magnetic grain boundary material has a magnetic flux density of at least about 250 mT. The grain component can comprise MnZn ferrite particles. The nanostructured grain boundary component can comprise NiZn ferrite nanoparticles. Core components and systems thereof can be manufactured from the composite material.
    Type: Application
    Filed: May 8, 2012
    Publication date: November 15, 2012
    Inventors: Yajie Chen, Vincent G. Harris
  • Publication number: 20120265001
    Abstract: A composite magnetic nanoparticle drug delivery system provides targeted controlled release chemotherapies for cancerous tumors and inflammatory diseases. The magnetic nanoparticle includes a biocompatible and biodegradable polymer, a magnetic nanoparticle, the biological targeting agent human serum albumin, and a therapeutic pharmaceutical composition. The composite nanoparticles are prepared by oil-in-oil emulsion/solvent evaporation and high shear mixing. An externally applied magnetic field draws the magnetic nanoparticles to affected areas. The biological targeting agent draws the nanoparticles into the affected tissues. Polymer degradation provides controlled time release delivery of the pharmaceutical agent.
    Type: Application
    Filed: October 11, 2011
    Publication date: October 18, 2012
    Applicant: WICHITA STATE UNIVERSITY
    Inventors: Ramazan Asmatulu, Heath Misak, Shang-you Yang, Paul Wooley
  • Publication number: 20120262266
    Abstract: An alloy is provided which consists of Fe100-a-b-c-d-x-y-zCuaNbbMcTdSixByZz and up to 1 at % impurities, M being one or more of the elements Mo, Ta and Zr, T being one or more of the elements V, Mn, Cr, Co and Ni, Z being one or more of the elements C, P and Ge, 0 at %?a<1.5 at %, 0 at %?b<2 at %, 0 at %?(b+c)<2 at %, 0 at %?d<5 at %, 10 at %<x<18 at %, 5 at %<y<11 at % and 0 at %?z<2 at %. The alloy is configured in tape form and has a nanocrystalline structure in which at least 50 vol % of the grains have an average size of less than 100 nm, a hysteresis loop with a central linear region, a remanence ratio Jr/Js of <0.1 and a coercive field strength Hc to anisotropic field strength Ha ratio of <10%.
    Type: Application
    Filed: April 16, 2012
    Publication date: October 18, 2012
    Applicant: Vacuumschmelze GmbH & Co. KG
    Inventors: Giselher HERZER, Christian Polak, Viktoria Budinsky
  • Publication number: 20120244356
    Abstract: The present invention relates to Fe16N2 particles in the form of a single phase which are obtained by subjecting iron oxide or iron oxyhydroxide whose surface may be coated with at least alumina or silica, if required, as a starting material, to reducing treatment and nitridation treatment, a process for producing the Fe16N2 particles in the form of a single phase for a heat treatment time of not more than 36 hr, and further relates to an anisotropic magnet or a bonded magnet which is obtained by magnetically orienting the Fe16N2 particles in the form of a single phase. The Fe16N2 particles according to the present invention can be produced in an industrial scale and have a large BHmax value.
    Type: Application
    Filed: October 19, 2010
    Publication date: September 27, 2012
    Inventors: Migaku Takahashi, Tomoyuki Ogawa, Yasunobu Ogata, Naoya Kobayashi
  • Publication number: 20120234136
    Abstract: This invention relates to Mn—Al magnetic powders of a high coercive force which are obtained from Mn—Al alloy vaporized by plasma arc discharging, and a manufacturing method thereof. The Mn—Al magnetic powders are produced by discharging a plasma arc to a compact which is formed by compacting a blend containing 20-60% by weight of Mn powder and 40-80% by weight of Al powder, collecting nanoscale Mn—Al particles after cooling the vaporized blend, and heat-treating the particles. According to the present invention, the Mn—Al magnetic powders of light weight and enhanced corrosion resistance are produced at a low cost.
    Type: Application
    Filed: November 10, 2009
    Publication date: September 20, 2012
    Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Jung-Goo Lee, Chul-Jin Choi
  • Publication number: 20120236089
    Abstract: A phase change magnetic ink and process for preparing same including comprising a phase change ink carrier; an optional colorant; an optional dispersant; an optional synergist; an optional antioxidant; and a coated magnetic nanoparticle comprising a magnetic core and a shell disposed thereover.
    Type: Application
    Filed: March 17, 2011
    Publication date: September 20, 2012
    Applicant: Xerox Corporation
    Inventors: Gabriel Iftime, Peter G. Odell, Marcel P. Breton
  • Publication number: 20120236088
    Abstract: A phase change magnetic ink including a phase change ink carrier; an optional colorant; an optional dispersant; an optional synergist; an optional antioxidant; and a carbon coated magnetic nanoparticle comprising a magnetic core and a carbon shell disposed thereover.
    Type: Application
    Filed: March 17, 2011
    Publication date: September 20, 2012
    Applicant: Xerox Corporation
    Inventors: Gabriel Iftime, C. Geoffrey Allen, Peter G. Odell, Richard P.N. Veregin, Marcel P. Breton
  • Publication number: 20120236092
    Abstract: A phase change magnetic ink and process for preparing same including comprising a phase change ink carrier; an optional colorant; an optional dispersant; an optional synergist; an optional antioxidant; and a polymer coated magnetic nanoparticle comprising a magnetic core and a polymeric shell disposed thereover.
    Type: Application
    Filed: March 17, 2011
    Publication date: September 20, 2012
    Applicant: Xerox Corporation
    Inventors: Gabriel Iftime, Peter G. Odell, Marcel P. Breton
  • Publication number: 20120236091
    Abstract: A phase change magnetic ink including a phase change ink carrier; an optional colorant; an optional dispersant; an optional synergist; an optional antioxidant; and a surfactant coated magnetic nanoparticle comprising a magnetic core and a shell disposed thereover.
    Type: Application
    Filed: March 17, 2011
    Publication date: September 20, 2012
    Applicant: Xerox Corporation
    Inventors: Gabriel Iftime, Peter G. Odell, Marcel P. Breton
  • Publication number: 20120225128
    Abstract: The present invention relates to compositions containing nanoparticies and uses of said composition for transferring therapeutically active substances into cells by means of specifically coated nanoparticles. The chemical design of the particles is such that a large amount thereof is absorbed into the cells. No direct bond between nanoparticle and the therapeutically active substance is required for the transfer into the cells. Thanks to said transfer, an increased efficacy of the substance and simultaneously reduced systemic toxicity is achieved, i.e. an increase in the efficacy while the side effects are reduced.
    Type: Application
    Filed: May 11, 2012
    Publication date: September 6, 2012
    Inventors: Andreas JORDAN, Norbert Waldoefner, Regina Scholz
  • Publication number: 20120202239
    Abstract: Systems and method for releasing a biological factor in a tissue or organ are disclosed. The system includes one or more nanoparticles distributed in the tissue or organ, the nanoparticles including the biological factor; and a magnetic field generator configured to generate a magnetic field at a first frequency and to apply to the tissue or organ the magnetic field at the first frequency thereby causing at least some of the biological factor to be released from each of the nanoparticles into the tissue or organ.
    Type: Application
    Filed: February 4, 2011
    Publication date: August 9, 2012
    Inventor: Ezekiel Kruglick
  • Publication number: 20120189688
    Abstract: The present invention provides a carrier component. The carrier component includes a carrier core body including a dispersive object and a dualistic self-assembly material for encapsulating the dispersive object, wherein the dualistic self-assembly material has an electric charge; and a first shell layer having an electric charge opposite to the electric charge of the dualistic self-assembly material, and coating the carrier core body, and thus avoids inactivation of a medicine, eliminates medicine leakage and reduces medicine releasing. The present invention further provides a method for forming a carrier component.
    Type: Application
    Filed: May 20, 2011
    Publication date: July 26, 2012
    Applicant: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Dean-Mo Liu, Chun Yu Chang, Fu Hsuan Chou, Tin-Yo Yen
  • Publication number: 20120183949
    Abstract: Devices, systems, and methods are disclosed herein for detecting one or more physiological conditions in lungs of a vertebrate subject. A method is described for administering at least one microparticle to lungs of a vertebrate subject, wherein the at least one microparticle includes one or more markers; wherein the one or more markers is configured to be released in response to one or more physiological conditions in the vertebrate subject; and detecting the one or more markers in a lung exhalant of the vertebrate subject.
    Type: Application
    Filed: January 19, 2011
    Publication date: July 19, 2012
    Inventors: Roderick A. Hyde, Muriel Y. Ishikawa, Jordin T. Kare, Erez Lieberman, Eric C. Leuthardt, Lowell L. Wood, JR., Victoria Y.H. Wood
  • Publication number: 20120168670
    Abstract: A composition of a crystalline ferromagnetic material based upon nanoscale cobalt carbide particles and to a method of manufacturing the ferromagnetic material of the invention via a polyol reaction are disclosed. The crystalline ferromagnetic cobalt carbide nanoparticles of the invention are useful for high performance permanent magnet applications. The processes according to the invention are extendable to other carbide phases, for example to Fe-, FeCo-carbides. Fe- and FeCo-carbides are realizable by using as precursor salts Fe-, Co-, and mixtures of Fe- and Co-salts, such as acetates, nitrates, chlorides, bromides, citrates, and sulfates, among others. The materials according to the invention include mixtures and/or admixtures of cobalt carbides, as both Co2C and Co3C phases. Mixtures may take the form of a collection of independent particles of Co2C and Co3C or as a collection of particles which consist of an intimate combination of Co2C and Co3C phases within individual particles.
    Type: Application
    Filed: September 10, 2010
    Publication date: July 5, 2012
    Inventor: Vincent G. Harris
  • Publication number: 20120168314
    Abstract: Systems and methods for treating a fluid by passing fluid through a treatment structure, the fluid containing undesirable living things, the treatment structure containing electrically conductive nanomaterial with silver, flowing an electric current in the fluid in the treatment structure via the electrically conductive nanomaterial with silver or silver material to kill undesirable living things in the treatment structure, and killing undesirable things in the treatment structure.
    Type: Application
    Filed: January 6, 2012
    Publication date: July 5, 2012
    Inventor: Guy L. McClung, III
  • Publication number: 20120171291
    Abstract: Nanoparticles having a core and a corona of ligands covalently linked to the core, wherein peptides are bound to or associated with the nanoparticles.
    Type: Application
    Filed: June 10, 2011
    Publication date: July 5, 2012
    Inventors: Thomas Rademacher, Phillip Williams, Christof Bachmann, Africa Garcia Barrientos, Esther de Torres Dominguez, Javier del Campo Menoyo
  • Publication number: 20120157330
    Abstract: Described are embodiments of an invention for a sample assembly with trenches for detection of analytes with electromagnetic read heads. The sample assembly includes an outer layer with at least one sample trench. The sample trench includes a first set of antibodies that are bonded on a first surface of a base layer. Target antigens are bonded with the first set of antibodies, and a second set of antibodies are bonded to the target antigens. Further, the sample trench includes nanoparticles that are bonded to the second set of antibodies. A head module includes a write head for magnetizing nanoparticles and a read sensor for detecting the magnetized nanoparticles, and thus, the target antigens. The sample trench constrains the biological sample, and thus the target antigen, during the preparation and subsequent analysis of the biological sample. Accordingly, the target antigen is aligned with read elements of a head module such that the target antigen is reliably and accurately detected.
    Type: Application
    Filed: December 16, 2010
    Publication date: June 21, 2012
    Inventors: Dylan J. Boday, Stephen L. Schwartz, Anna Wanda Topol, Sandra L. Waters, Daniel J. Winarski
  • Publication number: 20120156141
    Abstract: A nanoparticle composition is provided, wherein the composition comprises a nanoparticulate metal oxide; and a phosphorylated polyol comprising at least two phosphate groups. The polyol comprises one or more hydrophilic groups selected from the group consisting of polyethylene ether moieties, polypropylene ether moieties, polybutylene ether moieties, and combinations of two or more of the foregoing hydrophilic moieties. A method of making the nanoparticle composition is also provided. The nanoparticle compositions provided by the present invention may be used as contrast agents in medical imaging techniques such as X-ray and magnetic resonance imaging.
    Type: Application
    Filed: December 15, 2010
    Publication date: June 21, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Bruce Allan Hay, Brian Christopher Bales, Michael Todd Luttrell, Binil Itty Ipe Kandapallil
  • Publication number: 20120153212
    Abstract: The present invention relates to bulk magnetic nanocomposites and methods of making bulk magnetic nanocomposites.
    Type: Application
    Filed: December 15, 2010
    Publication date: June 21, 2012
    Inventor: J. Ping Liu
  • Publication number: 20120145601
    Abstract: A magnetic nanoparticle complex includes a magnetic nanoparticle; and a ligand associated with the magnetic nanoparticle, the ligand including a functional group capable of combining with an acid component or a conjugate base of the acid component, in an oil. A method for preparing a magnetic nanoparticle complex, includes preparing a pre-ligand having at least one amino group and at least one carbamate group or dithiocarbamate group; associating the pre-ligand with a magnetic nanoparticle to form a magnetic nanoparticle-ligand complex; and modifying the ligand to form a modified ligand having a functional group capable of combining with an acid component in an oil or a conjugate base of the acid component.
    Type: Application
    Filed: February 24, 2012
    Publication date: June 14, 2012
    Inventor: Jin-Kyu LEE
  • Publication number: 20120145637
    Abstract: A water treatment composition capable of effectively adsorbing pollutants from water is described. The composition includes magnetic extractants, which comprise magnetite nanoparticles containing functional groups. The composition is used to remove from water and aqueous streams oils and other contaminants. A process for removing contaminants from water and apparatus used in the process are also described.
    Type: Application
    Filed: December 14, 2010
    Publication date: June 14, 2012
    Applicant: King Abdulaziz City for Science and Technology
    Inventors: Sulaiman M. ALFADUL, Abdulrahman I. ALABDULA'ALY, Mujahid A. KHAN
  • Publication number: 20120121517
    Abstract: The present invention relates to a poly(organophosphazene)-superparamagnetic nanoparticle complex including a biodegradable and thermosensitive poly(organophosphazene) and a iron oxide (Fe3O4, Magnetite)-series ferrite superparamagnetic nanoparticle, a preparation method, and uses of carrying a physiologically-active material, a bio-material and a biomaterial for cancer hyperthermia. The iron oxide is used as a MRI contrast agent for T-2 and T2* weighted image, and the poly(organophosphazene) shows a sol-to-gel behavior depending upon the temperature change. The complex is a bound-type where the superparamagnetic ferrite nanoparticle is bonded to phosphazene-based polymer via hydrophobic binding, and a mixed-type where the superparamagnetic ferrite nanoparticle is physically mixed with the phosphazene-based polymer.
    Type: Application
    Filed: June 30, 2011
    Publication date: May 17, 2012
    Inventors: Soo-Chang SONG, Jang Il KIM
  • Publication number: 20120107246
    Abstract: Methotrexate-modified nanoparticles that target tumors, compositions that include the nanoparticles, methods of imaging tissues using the nanoparticles, and methods for treating tissues using the nanoparticles.
    Type: Application
    Filed: June 18, 2010
    Publication date: May 3, 2012
    Applicant: WASHINGTON, UNIVERSITY OF
    Inventors: Miqin Zhang, Shian-Jy Wang, Nathan Kohler, Yuh-Jiuan Lin, Conroy Sun
  • Publication number: 20120093730
    Abstract: In one embodiment, a death tag for targeting a cell death marker is provided, the death tag comprising a death marker binding domain; a reporter binding domain (RBD); and a reporter component that is associated with the reporter binding domain. In another embodiment, a method of determining the efficacy of a cancer treatment is provided. The method may comprise administering to a subject an effective dose of a death tag that targets apoptotic, necrotic or dead cells; exposing the subject to an imaging technique; determining that the cancer treatment is effective when the imaging technique detects the presence of the death tag. In another embodiment, an in vivo, ex vivo, or in vitro method of determining the need for a treatment or determining the efficacy of a treatment in cell, tissue, and organ injuries.
    Type: Application
    Filed: October 6, 2011
    Publication date: April 19, 2012
    Inventors: Marek Malecki, Raf Malecki, Bianca Malecki
  • Publication number: 20120076712
    Abstract: Rare earth magneto-optical nanocrystalline oxides provide a material that is transparent in the visible range and has a high magnetic response to external magnetic fields. The material can be manufactured using current activated pressure assisted densification (CAPAD). The result is a rare earth magneto-optical nanocrystalline oxide having an average grain size of less than about 100 nm and a Verdet constant greater than or equal to about 300 rad T?1 m?1 for light having a wavelength of about 632.8 nm.
    Type: Application
    Filed: August 30, 2011
    Publication date: March 29, 2012
    Applicant: The Regents of the University of California
    Inventors: Javier E. Garay, Jason R. Morales
  • Patent number: 8138874
    Abstract: A nanomagnetic flip-flop, or register. The nanomagnetic register receives a signal from an input signal nanomagnet on a first clock cycle, and provides the input to an output signal nanomagnet on a second clock cycle. The input signal nanomagnet and the output signal nanomagnet are arranged on a substrate. Each of the signal nanomagnets has an easy axis and a hard axis that are substantially in a signal plane. A register nanomagnet is arranged on the substrate between the input signal nanomagnet and the output signal nanomagnet. The register nanomagnet has an easy axis and a hard axis that are substantially in a register plane. The register plane is not coplanar with the signal plane.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: March 20, 2012
    Assignee: The Regents of the University of California
    Inventors: David Carlton, Nathan C. Emley, Jeffrey Bokor
  • Publication number: 20120059240
    Abstract: The disclosure provides a long-circulating, micellar hybrid nanoparticles (MHN) that contain MN, QD, and the anti-cancer drug doxorubicin (DOX) within a single polyethylene glycol (PEG)-phospholipid micelle and provide the first examples of simultaneous targeted drug delivery and dual-mode NIR-fluorescent and MR imaging of diseased tissue in vitro and in vivo.
    Type: Application
    Filed: August 29, 2011
    Publication date: March 8, 2012
    Applicants: MASSACHUSETTS INSTITUTE OF TECHNOLOGY, THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Michael J. Sailor, Sangeeta N. Bhatia, Ji-Ho Park, Geoffrey A. Von Maltzahn
  • Publication number: 20120058053
    Abstract: A contrast agent characterized in that each of carbon nanohorns forming a carbon nanohorn aggregate has an opening at the side wall or tip, wherein a metal M (at least one metal selected from among paramagnetic metals, ferromagnetic metals, and superparamagnetic metals) or a compound of the metal M is incorporated in or dispersed on each of the carbon nanohorns. A contrast agent characterized in that it contains a Gd oxide. There is provided a contrast agent, which can be mass-produced easily, and satisfies the requirement of low toxicity and enables microscopic diagnoses when used for MRI. A contrast agent characterized in that is contains a carbon nanohorn aggregate.
    Type: Application
    Filed: November 14, 2011
    Publication date: March 8, 2012
    Inventors: Sumio Iijima, Jin Miyawaki, Masako Yudasaka, Eiichi Nakamura, Hiroyuki Isobe, Hideki Yorimitsu, Hideto Imai
  • Publication number: 20120021219
    Abstract: Magnetic nanoflakes fabricated by surfactant assisted, wet, high energy ball milling of bulk precursors, with or without preceding dry, high energy ball milling, wherein certain nanoflakes indicate hard magnetic properties, crystallographic texture and magnetic anisotropy.
    Type: Application
    Filed: July 21, 2010
    Publication date: January 26, 2012
    Inventors: Alexander Gabay, Baozhi Cui, Melania Marinescu, Jinfang Liu, George C. Hadjipanayis
  • Publication number: 20120021954
    Abstract: A nanostructure array is disclosed. The nanostructure array comprises a plurality of elongated organic nanostructures arranged generally perpendicularly to a plane.
    Type: Application
    Filed: December 4, 2007
    Publication date: January 26, 2012
    Inventors: Ehud Gazit, Meital Reches
  • Publication number: 20120014511
    Abstract: A method is described for producing a grating, in particular an absorption grating, having a grating constant of less than 100 ?m, by using a solution of superparamagnetic colloidal nanocrystal clusters (CNCs), a solvent liquid and a photocurable resin, with the following steps:—alignment of the CNCs in the solution by an external magnetic field,—exposure of the solution, so that the resin is cured and grating structures of an intended grating constant are formed, and—removal of the magnetic field.
    Type: Application
    Filed: July 18, 2011
    Publication date: January 19, 2012
    Inventor: Martin Hoheisel
  • Patent number: 8097173
    Abstract: The invention provides porous particles that produce a predetermined optical response and that may be manipulated magnetically. A preferred particle of the invention has a porous structure that produces a predetermined optical response and magnetic material adhered to the particle. Another preferred particle is amphiphilic. The optical response provided by a particle of the invention enables particles of the invention to be used in sensing, labeling, signaling, display and many other applications. The magnetic nature of the present magnetic particles permits the particles themselves to be manipulated, e.g., vibrated, moved and re-oriented. The porous particles can also be used to control, move, and/or deliver small volumes of liquids and solids associated with the particles.
    Type: Grant
    Filed: July 18, 2005
    Date of Patent: January 17, 2012
    Assignee: The Regents of the University of California
    Inventors: Michael J. Sailor, Yang Yang Li, Nathan Trujillo, Jason Dorvee
  • Publication number: 20120010599
    Abstract: In alternative embodiments, the invention provides articles of manufacture comprising biocompatible nanostructures comprising PolyEther EtherKetone (PEEK) surface-modified (surface-nanopatterned) to exhibit nanostructured surfaces that promote osseointegration and bone-bonding for, e.g., joint (e.g., knee, hip and shoulder) replacements, bone or tooth reconstruction and/or implants, including their use in making and using artificial tissues and organs, and related, diagnostic, screening, research and development and therapeutic uses, e.g., as primary or ancillary drug delivery devices. In alternative embodiments, the invention provides biocompatible nanostructures that promote osseointegration and bone-bonding for enhanced cell and bone growth and e.g., for in vitro and in vivo testing, restorative and reconstruction procedures, implants and therapeutics.
    Type: Application
    Filed: July 6, 2011
    Publication date: January 12, 2012
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Sungho JIN, Garrett SMITH, Chulmin CHOI
  • Publication number: 20120004531
    Abstract: A gold-coated iron oxide nanoparticle, method of making thereof, and method of using thereof is disclosed. The nanoparticle is substantially toxin free (making it clinically applicable), easily functionalized, and can serve as a contrast agent for a number of imaging techniques, including imaging a subject in at least two distinct imaging modes. Further, the nanoparticle is well-suited for therapeutic uses.
    Type: Application
    Filed: March 16, 2010
    Publication date: January 5, 2012
    Inventors: Zdravka Medarova, Anna Moore, Mehment Yigit
  • Publication number: 20120003321
    Abstract: The present invention relates to crosslinked dextran magnetic composite microparticles and a preparation process and a using method thereof. The composite microparticles comprise magnetic nanoparticles and dextran with crosslinked structure, wherein the magnetic nanoparticles are dispersed in the dextran with crosslinked structure. The process for preparing the composite microparticles comprises: preparing a dextran solution; synthesizing dextran magnetic composite microparticles; and synthesizing the crosslinked dextran magnetic composite microparticles. The using method of composite microparticles comprises: preparing crosslinked dextran magnetic composite microparticles loaded with anti-cancer drug; and adding a sustained-releasing solution thereto.
    Type: Application
    Filed: December 29, 2008
    Publication date: January 5, 2012
    Applicant: XI'AN GOLDMAG NANOBIOTECH CO. LTD.
    Inventors: Mingli Peng, Yanhong Liu, Yali Cui, Chao Chen, Ke Li
  • Publication number: 20110286255
    Abstract: A magnetic circuit in one aspect comprises a plurality of tapered magnetic wires each having a relatively wide input end and a relatively narrow output end, with the output end of a first one of the tapered magnetic wires being coupled to the input end of a second one of the tapered magnetic wires. Each of the tapered magnetic wires is configured to propagate a magnetic domain wall along a length of the wire in a direction of decreasing width from its input end to its output end. In an illustrative embodiment, the magnetic circuit comprises a logic buffer that includes at least one heating element. The heating element may be controlled to facilitate transfer of a magnetic moment from the output end of the first tapered magnetic wire to the input end of the second tapered magnetic wire.
    Type: Application
    Filed: May 19, 2010
    Publication date: November 24, 2011
    Applicant: International Business Machines Corporation
    Inventors: Daniel Christopher Worledge, David William Abraham
  • Publication number: 20110269151
    Abstract: A centrifugal micro-fluidic device and an immunoassay method using the same are provided.
    Type: Application
    Filed: April 28, 2011
    Publication date: November 3, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: In Wook KIM
  • Publication number: 20110262347
    Abstract: Disclosed are compositions and methods related to multivalent compositions targeted to cells and tissues. The disclosed targeting is useful for treatment of cancer and other diseases and disorders.
    Type: Application
    Filed: April 8, 2011
    Publication date: October 27, 2011
    Inventors: Erkki Ruoslahti, Lilach Agemy, Dinorah Friedmann-Morviniski, Venkata Ramana Kotamraju, Kazuki Sugahara, Inder Verma
  • Publication number: 20110262927
    Abstract: The invention generally relates to conducting an assay on a sample that isolates a pathogen from the sample and allows for analysis of the pathogen with minimal (i.e., at most 24 hrs of culturing) or no culturing of the pathogen. In certain embodiments, the invention provides methods for identifying a pathogen from a sample that involve obtaining a sample including a pathogen, conducting an assay that isolates the pathogen from the sample, culturing the isolated pathogen for at most about 24 hrs, and analyzing the pathogen.
    Type: Application
    Filed: April 21, 2011
    Publication date: October 27, 2011
    Applicant: NANOMR, INC.
    Inventors: Sergey A. Dryga, Lisa-Jo Ann Clarizia, Eddie W. Adams, Victor C. Esch
  • Patent number: 8043702
    Abstract: A surface-modified, magnetic nanoparticle has one or more multi-dentate ligands bound to a surface of a magnetic nanoparticle. The one or more multi-dentate ligands are bound to the surface of the magnetic nanoparticle through one or more dithiocarbamate groups. The one or more multi-dentate ligands may be a compound of Formula II: R2NCH2[CH2NR?CH2]m[CH2N(CS2?)CH2]q[CH2NHCH2]rCH2NR?2 ??(II) where each R, R?, and R? are independently H, a branched ethyleneimine unit, an unsubstituted or substituted alkyl, an unsubstituted or substituted alkenyl, or an unsubstituted or substituted aryl; and n is an integer from 1 to about 50.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: October 25, 2011
    Assignee: Seoul National University Research & Development Business Foundation (SNU R&DB Foundation)
    Inventor: Jin-Kyu Lee
  • Publication number: 20110217727
    Abstract: The present invention provides a method for imaging a pattern of magnetic materials in a live cell comprising: preparing a plurality of magnetic materials magnetized in a direction of a line of magnetic force by applying a magnetic field, at least one of the magnetic materials being configured into a nanoparticle and the surface of at least one of the magnetic materials being modified; introducing a plurality of the magnetic materials into each live cell; providing the live cell with a label capable of binding to the magnetic material and imaging a pattern of the magnetic materials in a direction of a line of magnetic force; allowing a bundle of the lines of magnetic force to pass through the live cell in a direction by applying a focused magnetic field to the live cell; aligning a plurality of the magnetic materials in the live cell with the direction of the line of magnetic force by the applied magnetic field; and identifying an imaged pattern of the label capable of imaging the aligned pattern of the magne
    Type: Application
    Filed: November 9, 2009
    Publication date: September 8, 2011
    Applicant: MEDISCOV INC.
    Inventor: Dae Joong Kim
  • Publication number: 20110203013
    Abstract: Methods and mixtures for providing a composition of interest to a plant cell are provided. Methods using a mixture of particles are provided, wherein the mixture includes at least one nanoparticle associated with a microparticle via a lipid compound. Methods include methods for plant cell transformation, methods to increase transformation frequency, methods to increase gene targeting, and methods for plastid transformation. The nanoparticle comprises at least one composition of interest. Also provided are transformed plant cells, plants, and seeds produced using the methods and mixtures described herein. Further provided are the methods of making and using the mixtures of particles.
    Type: Application
    Filed: January 24, 2011
    Publication date: August 18, 2011
    Inventors: David J. Peterson, William James Gordon-Kamm
  • Patent number: 7993541
    Abstract: The present application is directed to the preparation and use of a class of nanoparticles that contain a single Quantum Confined dopant. A QCA nanocrystal comprises of a plurality of host atoms in a nanocrystal of a size of less than 10 nm with a single atom of a dopant (or activator). This single QCA dopant, when confined, becomes polarized and creates a large magnetic-moment in a nanosize host that contains atoms of unpaired spins. The quantum confined atom (QCA) which is now pinned, triggers the alignment of the host atoms resulting in nanosize magnetic domain. Engineering of nanomagnets based on QCA nanoparticles can be used in different applications such as: sensors, drug delivery, bio-tagging, cell/DNA tagging, magnetic memories and others.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: August 9, 2011
    Assignee: Nanocrystals Technology LP
    Inventors: Rameshwar Nath Bhargava, Haranath Divi, Adosh Mehta
  • Publication number: 20110182814
    Abstract: Described herein are compositions and methods for cancer cell biomarkers, such as pancreatic ductal adenocarcinoma (PDAC) cell biomarkers, and binding molecules for diagnosis and treatment of cancer, e.g., PDAC. Methods of identifying “accessible” proteomes are disclosed for identifying cancer biomarkers, such as plectin-1, a PDAC biomarker. Additionally, imaging compositions are provided comprising magnetofluorescent nanoparticles conjugated to peptide ligands for identifying PDACs.
    Type: Application
    Filed: April 14, 2009
    Publication date: July 28, 2011
    Inventors: Kimberly Kelly, Ralph Weissleder, Nabeel Bardeesy
  • Publication number: 20110177602
    Abstract: A composite structure, for marking biomolecules in a biological, biochemical or medicinal system, comprises: at least one nano particle and at least one dendritic macromolecule, which has an inner region with branched, especially perfectly branched to highly branched, structures and a periphery, which comprises surface groups of the dendritic macromolecule, wherein a plurality, especially more than 50%, of the surface groups have in the periphery of the dendritic macromolecule, in each case, at least one functional group of first type, wherein the functional group of first type comprises at least one monosaccharide-, oligosaccharide- and/or polysaccharide unit, and wherein the dendritic macromolecule stabilizes the nano particle.
    Type: Application
    Filed: June 24, 2009
    Publication date: July 21, 2011
    Applicant: Endress + Hauser Conducts Gesellschaft furMess-und Regeltechnik mbH +Co. KG
    Inventors: Dietmar Appelhans, Mathias Lakatos, Wolfgang Pompe
  • Publication number: 20110171123
    Abstract: The present invention relates to a method for in vivo detection of a biofilm infection residing in a mammal, the method comprising (i) administering to the mammal a diagnostic-effective amount of a biofilm-specific probe, wherein the probe comprises a bio film-targeting moiety and a paramagnetic nanoparticle core; and (ii) imaging the mammal to detect the presence of the biofilm infection by observing the mammal using a magnetic resonance diagnostic technique after the biofilm-specific probe has been provided sufficient time to selectively bind to the bio film infection that may be present in the mammal. The invention also relates to methods of treatment of a bio film infection, and compositions and kits useful in the detection and/or treatment of bio film infections.
    Type: Application
    Filed: September 2, 2009
    Publication date: July 14, 2011
    Applicant: University of Maryland, Baltimore
    Inventors: Mark E. Shirtliff, Rebecca A. Brady, Jeffrey G. Leid, Timothy L. Vail, Jennifer M. Kofonow
  • Publication number: 20110171715
    Abstract: The invention discloses a biocompatible polymer for covalently modifying magnetic nanoparticles. The biocompatible polymer may be coupled to a targeting agent and/or a fluorescent dye. The invention also discloses a magnetic nanoparticle with biocompatibilities comprising the biocompatible polymer.
    Type: Application
    Filed: April 22, 2008
    Publication date: July 14, 2011
    Applicant: Industrial Technology Research Institute
    Inventors: Wen-Hsiang Chang, Wen-Uan Hsieh, Shiu-Hua Huang, Chin-1 Lin, Shian-Jy Jassy Wang, Kelly Teng
  • Publication number: 20110165647
    Abstract: A nanoparticle conjugate comprising a nanoparticle having one or more peptide-ol compounds and one or more polyethylene glycol (PEG) compounds attached thereto. A method of producing the nanoparticle conjugate is also described.
    Type: Application
    Filed: February 4, 2009
    Publication date: July 7, 2011
    Inventors: David G. Fernig, Laurence Duchesne