From Protein Or Unit Thereof (e.g., Enzyme Or Carboxyl Group, Etc.) Patents (Class 977/729)
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Patent number: 8798980Abstract: A molecular motor in which multiple concentric cylinders (or nested cones) rotate around a common longitudinal axis. Opposing complementary surfaces of the cylinders or cones are coated with complementary motor protein pairs (such as actin and myosin). The actin and myosin interact with one another in the presence of ATP to rotate the cylinders or cones relative to one another, and this rotational energy is harnessed to produce work. The length of the cylinders can also be used to control the power generated by the motor. In another embodiment, the molecular motor includes at least two annular substrates wherein one annular substrate is coated with a first motor protein and the other annular substrate is coated with a second motor protein. The first and second motor proteins interact with each other to move the second annular relative to the first annular substrate.Type: GrantFiled: November 29, 2011Date of Patent: August 5, 2014Inventors: Thomas D. Schneider, Ilya Gennadiyevich Lyakhov
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Patent number: 8338140Abstract: The present invention concerns methods and compositions for delivery of therapeutic agents to target cells, tissues or organisms. In preferred embodiments, the therapeutic agents are delivered in the form of therapeutic-loaded polymers that may comprise many copies of one or more therapeutic agents. In more preferred embodiments, the polymer may be conjugated to a peptide moiety that contains one or more haptens, such as HSG. The agent-polymer-peptide complex may be delivered to target cells by, for example, a pre-targeting technique utilizing bispecific or multispecific antibodies or fragments, having at least one binding arm that recognizes the hapten and at least a second binding arm that binds specifically to a disease or pathogen associated antigen, such as a tumor associated antigen. Methods for synthesizing and using such therapeutic-loaded polymers and their conjugates are provided.Type: GrantFiled: September 27, 2011Date of Patent: December 25, 2012Assignee: Immunomedics, Inc.Inventors: Serengulam V. Govindan, Sung-Ju Moon, David M. Goldenberg, Chien-Hsing Chang
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Patent number: 8217143Abstract: Metal nanoshells are fabricated by admixing an aqueous solution of metal ions with an aqueous solution of apoferritin protein molecules, followed by admixing an aqueous solution containing an excess of an oxidizing agent for the metal ions. The apoferritin molecules serve as bio-templates for the formation of metal nanoshells, which form on and are bonded to the inside walls of the hollow cores of the individual apoferritin molecules. Control of the number of metal atoms which enter the hollow core of each individual apoferritin molecule provides a hollow metal nonparticle, or nanoshell, instead of a solid spherical metal nanoparticle.Type: GrantFiled: July 12, 2007Date of Patent: July 10, 2012Assignees: National Institute of Aerospace Associates, The United States of America as represented by the Administration of NASAInventors: Jae-Woo Kim, Sang H. Choi, Peter T. Lillehei, Sang-Hyon Chu, Yeonjoon Park, Glen C. King, James R. Elliott, Jr.
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Patent number: 8138005Abstract: Disclosed is a method for fabricating a high-performance field-effect transistor biosensor for diagnosing cancers using micro conductive polymer nanomaterials funtionalized with anti-VEGF aptamer. Disclosed is a high-sensitivity field-effect transistor biosensor for diagnosing cancers using a micro conductive polymer nanomaterial transistor array including a micro polymer nanomaterial transistor array including a channel region provided with a metal source electrode, a metal drain electrode, a gate and micro polymer nanomaterials, and an anti-VEGF aptamer covalently bound to the surface of the micro polymer nanomaterials constituting the channel region of the micro polymer nanomaterials transistor array, to target VEGF (Vascular endothelial growth factor).Type: GrantFiled: April 23, 2010Date of Patent: March 20, 2012Assignee: Snu R&DB FoundationInventors: Jyong Sik Jang, Oh Seok Kwon, Seon Joo Park
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Patent number: 8086432Abstract: A molecular motor in which multiple concentric cylinders (or nested cones) rotate around a common longitudinal axis. Opposing complementary surfaces of the cylinders or cones are coated with complementary motor protein pairs (such as actin and myosin). The actin and myosin interact with one another in the presence of ATP to rotate the cylinders or cones relative to one another, and this rotational energy is harnessed to produce work. The concentration of ATP and the number of nested cylinders or cones can be used to control the rotational speed of the motor. The length of the cylinders can also be used to control the power generated by the motor. In another embodiment, the molecular motor includes at least two annular substrates wherein one annular substrate is coated with a first motor protein and the other annular substrate is coated with a second motor protein. The first and second motor proteins interact with each other to move the second annular relative to the first annular substrate.Type: GrantFiled: January 24, 2008Date of Patent: December 27, 2011Assignee: The United States of America as represented by the Secretary of the Department of Health and Human ServicesInventors: Thomas D. Schneider, Ilya Gennadiyevich Lyakhov
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Patent number: 7476786Abstract: The methods, apparatus and compositions disclosed herein concern the detection, identification and/or sequencing of biomolecules, such as nucleic acids or proteins. In certain embodiments of the invention, coded probes comprising a probe molecule attached to one or more nano-barcodes may be allowed to bind to one or more target molecules. After binding and separation from unbound coded probes, the bound coded probes may be aligned on a surface and analyzed by scanning probe microscopy. The nano-barcodes may be any molecule or complex that is distinguishable by scanning probe microscopy (SPM), such as carbon nanotubes, fullerenes, submicrometer metallic barcodes, nanoparticles or quantum dots. Where the probes are oligonucleotides, adjacent coded probes hybridized to a target nucleic acid may be ligated together before alignment and scanning probe microscopy (SPM) analysis. Compositions comprising coded probes are also disclosed herein.Type: GrantFiled: September 19, 2003Date of Patent: January 13, 2009Assignee: Intel CorporationInventors: Selena Chan, Xing Su, Mineo Yamakawa
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Patent number: 7449445Abstract: A peptide nanofiber having conductivity is provided. A conductive peptide nanofiber which includes a nanofiber formed through a manner of self-assembly of a peptide that has a nanofiber-forming ability and consists of an amino acid sequence of Xaa-Phe-Ile-Val-Ile-Phe-Xaa (SEQ ID NO: 1, wherein N-terminal Xaa is an arbitrary amino acid residue Xaa1; C-terminal Xaa is an arbitrary amino acid residue Xaa2; and Xaa1 and Xaa2 are an amino acid having an acidic side chain, an amino acid having a basic side chain, or an amino acid having a side chain with polarity according as acidity and basicity) or a derivative of the peptide and a conductive substance added thereto, the aforementioned conductive substance being added to an amino group of the peptide or the derivative.Type: GrantFiled: October 19, 2005Date of Patent: November 11, 2008Assignees: Panasonic Corporation, National University Corporation Kobe UniversityInventors: Kentaro Onizuka, Shuhei Tanaka, Hirokazu Sugihara, Atsuo Tamura