Heavy Metal Or Aluminum Containing Patents (Class 544/225)
  • Publication number: 20030235712
    Abstract: A metal coordination compound having a basic structure represented by formula: MLmL′n (1), wherein M is a metal atom of Ir, Pt, Rh or Pd; L and L′ are mutually different bidentate ligands; m is 1, 2 or 3; wherein at least one bidentate ligand has a partial structure formed by condensation via an alkylene group having 2-10 carbon atoms, is provided. In an electroluminescence device composed of one or a plurality of organic films disposed between a cathode and an anode, at least one layer is a luminescence layer which is formed by incorporating luminescence molecules constituting the metal coordination compound having a structure of the formula (1) described above as a guest material in a host material thereby to provide an electroluminescence device producing luminescence at high efficiency and stably keeping a high luminance for a long period.
    Type: Application
    Filed: July 17, 2002
    Publication date: December 25, 2003
    Inventors: Takao Takiguchi, Akira Tsuboyama, Shinjiro Okada, Jun Kamatani, Seishi Miura, Takashi Moriyama, Satoshi Igawa, Manabu Furugori, Hidemasa Mizutani
  • Publication number: 20030195378
    Abstract: In a process for the hydroformylation of ethylenically unsaturated compounds, at least one complex of a metal of transition group VIII. with at least one phosphorus-, arsenic- or antimony-containing compound as ligand is used as hydroformylation catalyst, where the compound used as ligand in each case comprises two groups which comprise a P, As or Sb atom and at least two further hetero atoms and are bound to a xanthene-like molecular framework. New compounds of this type and catalysts which comprise at least one complex of a metal of transition group VIII. with at least one such compound as ligand are also provided.
    Type: Application
    Filed: March 11, 2003
    Publication date: October 16, 2003
    Inventors: Wolfgang Ahlers, Dag Wiebelhaus, Rocco Paciello, Michael Bartsch, Robert Baumann, Dieter Vogt, Alison Hewat
  • Publication number: 20030191340
    Abstract: Complexes of a selected class of chiral ligands with molybdenum, tungsten or chromium, preferably molybdenum, are effective as catalysts in highly enantioselective and regioselective alkylation of allylic substrates.
    Type: Application
    Filed: February 5, 2003
    Publication date: October 9, 2003
    Inventors: Barry M. Trost, Iwao Hachiya
  • Publication number: 20030180767
    Abstract: The invention provides supramolecular metal complexes as DNA cleaving agents. In the complexes, charge is transferred from one light absorbing metal (e.g. Ru or Os) to an electron accepting metal (e.g. Rh) via a bridging &pgr;-acceptor ligand. A bioactive metal-to-metal charge transfer state capable of cleaving DNA is thus generated. The complexes function when irradiated with low energy visible light with or without molecular oxygen.
    Type: Application
    Filed: January 31, 2003
    Publication date: September 25, 2003
    Inventors: Karen Brewer, Shawn Swavey
  • Publication number: 20030171582
    Abstract: This invention features a supramolecule having the following structure: 1
    Type: Application
    Filed: January 24, 2002
    Publication date: September 11, 2003
    Inventors: Kuang-Lieh Lu, Manimaran Bala, T. Rajendran, Yi-Long Lu, Gene-Hsiang Lee, Shie-Ming Peng
  • Publication number: 20030156244
    Abstract: Complexes of organic ligands with a metal ion exhibit unique conformation and spectroscopic properties upon changes in oxidation state of the metal ion. The metal is a redox-active metal ion and may possess additional ligands bonded to it. The organic ligand has three “arms” that are linked together at a central atom; each arm contains atoms that may also coordinate to the metal ion. At least two of the arms possess chromophoric properties. At least one arm contains two different groups that may coordinate to the metal ion. In one oxidation state, a first atom binds to the metal. In a second oxidation state, a second atom binds to the metal. This change in coordination of the metal ion results in a rotation of one of the arms, which changes the orientation of another group, which inverses the orientation of the two chromophoric species with respect to one another.
    Type: Application
    Filed: April 16, 2003
    Publication date: August 21, 2003
    Inventors: James W. Canary, Suffen Zahn
  • Publication number: 20030149264
    Abstract: The invention relates to chiral ionic liquids of the general formula
    Type: Application
    Filed: December 27, 2002
    Publication date: August 7, 2003
    Inventors: Peter Wasserscheid, Wilhelm Keim, Carsten Bolm, Andreas Bosmann
  • Publication number: 20030144554
    Abstract: A method for the preparation of aryl methyl ketones converts a variety of ethyl arenas to the corresponding aryl methyl ketones using a dioxygen-containing gas as the oxidant. The catalyst used for the reaction is a metal complex bearing general formulas as disclosed.
    Type: Application
    Filed: January 25, 2002
    Publication date: July 31, 2003
    Applicant: The Hong Kong Polytechnic University
    Inventors: Albert Sun-Chi Chan, Jian-Ying Qi, Cheng-Chao Pai, Xian-Jun Li, Li-Sheng Deng, Wen-Zao Li, Bin Sun, Jia-Yuan Hu
  • Publication number: 20030144434
    Abstract: The invention relates to chemical products which are suited for use as co-catalysts and which can be obtained by reacting a compound of formula (I), M1R1R2(R3)m with a compound of formula (II), (R4X)q-(G)*(M2R5R6)g. In formula (I), R1, R2 and R3 are the same or different and represent a hydrogen atom, C1-C20 alkyl, C1-C20 alkyl halide, C6-C20 aryl, C6-C20 aryl halide, C7-C40 arylalkyl, C7-C40 arylalkyl halide, C7-C40 alkylaryl or C7-C40 alkylaryl halide; M1 represents an element of the second or third main group of the periodic table of elements, and; m equals 0 or 1, whereby m is equal to 1 when M1 represents an element of the third main group, and m is equal to 0 when M1 represents an element of the second main group.
    Type: Application
    Filed: November 20, 2002
    Publication date: July 31, 2003
    Inventor: J?ouml;rg Schottek
  • Publication number: 20030129591
    Abstract: Nanocrystal compounds and nanocrystal compound linker arm of the following formula: 1
    Type: Application
    Filed: May 24, 2001
    Publication date: July 10, 2003
    Inventors: Sandra J. Rosenthall, Ian D. Tomlinson
  • Publication number: 20030119660
    Abstract: The invention relates to novel transition metal complexes containing at least one diaminocarbene ligand, to processes for preparing these transition metal complexes and to their use as catalysts in organic reactions.
    Type: Application
    Filed: September 30, 2002
    Publication date: June 26, 2003
    Inventors: Wolfgang A. Herrmann, Karin Denk
  • Publication number: 20030114433
    Abstract: Pro-drug forms of linear polyamine-bridged platinum compounds and methods for their production and use are provided. The polyamine-bridge portion of the compounds is based on spermine or spermidine, and the central amines of the polyamine-bridge are chemically bonded to labile blocking groups. The presence of the blocking groups serves to minimize the toxicity of the Pt compounds upon administration. Selective removal of the blocking groups and release of the active, unblocked species occurs upon exposure to suitable environmental conditions.
    Type: Application
    Filed: August 22, 2002
    Publication date: June 19, 2003
    Inventors: Nicholas Farrell, Alexander Hegmans, John D. Roberts
  • Publication number: 20030100761
    Abstract: The invention relates to a process for synthesizing an ionic metal complex represented by the general formula (1) or (5). This process includes reacting in an organic solvent a compound (corresponding to ligand of the complex) represented by the general formula (2) or (6) with a halogen-containing compound represented by the general formula (3) or (4), in the presence of a reaction aid containing an element selected from the group consisting of elements of groups 1-4 and 11-14 of the periodic table. It is possible by this process to easily and efficiently synthesize the ionic metal complex, which can be used as a supporting electrolyte for electrochemical devices, a polymerization catalyst of polyolefins and so forth, or a catalyst for organic synthesis.
    Type: Application
    Filed: November 1, 2002
    Publication date: May 29, 2003
    Applicant: Central Glass Company, Limited
    Inventors: Shoichi Tsujioka, Hironari Takase, Mikihiro Takahashi, Yoshimi Isono
  • Publication number: 20030097013
    Abstract: Nitrogen containing analogs of Copper II &bgr;-diketonates which analogs are more stable source reagents for copper deposition when substantially free of solvents of excess ligands. The nitrogen containing analogs replace -O- with —N(R″)—wherein R″ is an alkyl group having from one to four carbon atoms. Replacement of each -O- is preferred although replacement of one -O- per cyclic ring is sufficient to improve stability of the copper source reagents. The source reagent can be purified by sublimation to remove solvents and excess ligands prior to semiconductor processing.
    Type: Application
    Filed: April 12, 2002
    Publication date: May 22, 2003
    Applicant: Applied Materials, Inc.
    Inventors: Ling Chen, Barry Chin
  • Publication number: 20030088120
    Abstract: A method for producing biphenyl and its derivative comprising oxidatively coupling a benzene aromatic compound in the presence of a catalyst comprising a palladium salt, a copper salt, and a bidentate ligand compound capable of forming a complex with the palladium salt via the nitrogen atom and the oxygen atom in the molecule thereof in an atmosphere containing molecular oxygen. In particular, an improved method for selectively producing an asymmetrically substituted biphenyl derivative, such as a 2,3,3′,4′-biphenyltetracarboxylic acid tetraester, which comprises oxidatively coupling a substituted aromatic compound, such as a phthalic diester, in the presence of the catalyst in an atmosphere containing molecular oxygen without replenishing with a ligand.
    Type: Application
    Filed: October 2, 2002
    Publication date: May 8, 2003
    Inventors: Yasushi Yamamoto, Tetsuro Tsuji, Jun Haruta
  • Patent number: 6544701
    Abstract: To provide a novel reaction product useful as an organic photoconductive material for electrophotographic photoconductors. A product obtainable by reacting (i) a nitrile derivative, (ii) a phthalonitrile derivative or a 1,3-diiminoisoindoline derivative and, if necessary, (iii) a metal or a metal-containing compound.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: April 8, 2003
    Assignee: Ricoh Company, Ltd.
    Inventors: Kaoru Tadokoro, Masayuki Shoshi, Michihiko Namba, Tomoyuki Shimada, Chiaki Tanaka
  • Patent number: 6545147
    Abstract: Compounds of the formula I [LnMmXp]ZYq  (1) are claimed, where L is a ligand of the formula II and the individual symbols have the meanings defined in the description. The metal complexes are suitable as bleaching catalysts in detergents, cleaners and disinfectants which comprise peroxy compounds.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: April 8, 2003
    Assignee: Clariant GmbH
    Inventors: Michael Seebach, Gerd Reinhardt, Thomas Schönherr, Edwin Weber
  • Patent number: 6541422
    Abstract: A method of selectively controlling undesirable vegetation in crops by using a postemergent application of an herbicidally effective amount of a metal chelate of a 2-(substituted benzoyl)-1,3-cyclohexanedione compound to the locus of such undesirable vegetation.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: April 1, 2003
    Assignee: Syngenta Limited
    Inventors: Herbert B. Scher, Jinling Chen
  • Publication number: 20030060668
    Abstract: Disclosed is a new catalyst composition comprising a bimetallic Co—Ru catalyst complexed with a N-heterocylcic ligand that is effective, economical, and provides improvements in oxidative stability in the one step synthesis of 1,3-propanediol (1,3-PDO) from ethylene oxide and synthesis gas. For example, cobalt-ruthenium-2,2′-bipyrimidine, 2,2′-dipyridyl, or 2,4,6-tripridyl-s-triazine catalyst precursors in cyclic ether solvents, such as 1,3-dioxolane, 1,4-dioxolane, 1,4-dioxane, and 2-ethyl-2-methyl-1,3-dioxolane, provide good yields of 1,3-PDO in a one step synthesis.
    Type: Application
    Filed: May 15, 2002
    Publication date: March 27, 2003
    Inventors: John Frederick Knifton, Talmadge Gail James, Kevin Dale Allen, Paul Richard Weider, Joseph Broun Powell, Lynn Henry Slaugh, Timothy Williams
  • Publication number: 20030054198
    Abstract: An organic EL device includes a luminescence layer containing, as a luminescent material allowing a high-luminescence and high-efficiency luminescence for a long period of time, a metal coordination compound represented by the following formula (1): LmML′n, wherein M denotes Ir, Pt, Ph or Pd; L denotes a bidentate ligand; L′ denotes a bidentate ligand different from L; m is an integer of 1, 2 or 3; and n is an integer of 0, 1 or 2 with the proviso that the sum of m and n is 2 or 3.
    Type: Application
    Filed: November 29, 2001
    Publication date: March 20, 2003
    Inventors: Akira Tsuboyama, Hidemasa Mizutani, Shinjiro Okada, Takao Takiguchi, Seishi Miura, Koji Noguchi, Takashi Moriyama, Satoshi Igawa, Jun Kamatani, Manabu Furugori
  • Publication number: 20030039975
    Abstract: Described in the present invention are a highly sensitive method for electrochemically detecting a DNA using a novel mixed intercalator and a detection kit useful for practicing said method.
    Type: Application
    Filed: August 10, 2001
    Publication date: February 27, 2003
    Inventors: Youngmi Kim Pak, James Jungho Pak, Sanghee Kim, Hong-Kyu Lee
  • Publication number: 20030010256
    Abstract: Organometallic compounds useful for forming aluminum films by chemical vapor deposition are disclosed. Also disclosed are methods of preparing the organometallic compounds and methods of forming aluminum films.
    Type: Application
    Filed: April 29, 2002
    Publication date: January 16, 2003
    Applicant: Shipley Company, L.L.C.
    Inventor: Hyun-Koock Shin
  • Patent number: 6500949
    Abstract: An improved process for forming bridged Group 4 transition metal complexes using boron trihalide and a magnesium dicyclopentadienyl compound to form a dicyclopentadienyl boron halide intermediate for subsequent metallation or other synthetic use and novel metal complexes.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: December 31, 2002
    Assignee: Dow Global Technologies Inc.
    Inventors: Richard E. Campbell, Jr., Kevin A. Frazier, David D. Devore, Paul C. Vosejpka
  • Publication number: 20020182441
    Abstract: Emissive phosphorescent organometallic compounds are described that produce improved electroluminescence, particularly in the blue region of the visible spectrum. Organic light emitting devices employing such emissive phosphorescent organometallic compounds are also described. Also described is an organic light emitting layer including a host material having a lowest triplet excited state having a decay rate of less than about 1 per second; a guest material dispersed in the host material, the guest material having a lowest triplet excited state having a radiative decay rate of greater than about 1×105 or about 1×106 per second and wherein the energy level of the lowest triplet excited state of the host material is lower than the energy level of the lowest triplet excited state of the guest material.
    Type: Application
    Filed: October 16, 2001
    Publication date: December 5, 2002
    Applicant: TRUSTEE OF PRINCETON UNIVERSITY
    Inventors: Sergey Lamansky, Mark E. Thompson, Vadim Adamovich, Peter I. Djurovich, Chihaya Adachi, Marc A. Baldo, Stephen R. Forrest, Raymond Kwong
  • Publication number: 20020177695
    Abstract: The present invention provides metal-containing purines, pyrimidines, nucleosides, nucleotides and oligonucleotides; including phosphoramidite and photolabile derivatives thereof, including methods of making and method of using same. The present invention provides a method for detection of nucleic acid sequences via electrochemical or photochemical means.
    Type: Application
    Filed: August 30, 2001
    Publication date: November 28, 2002
    Applicant: Duke University
    Inventors: Mark W. Grinstaff, Amy E. Beilstein, Shoeb I. Khan
  • Publication number: 20020165369
    Abstract: The invention relates to novel platinum-based compounds for labeling biomolecules. Platinum based labeling compounds according to the invention irreversibly attach to a target biomolecule via coordination of a platinum (II) metal center with N or S atoms on the target biomolecule. The invention relates to the novel compounds themselves, methods of making the platinum-based labeling compounds, probes labeled with such compounds, methods of making such labeled probes, and kits comprising the novel platinum-based labeling compounds and/or probes labeled with them. The invention also relates to methods of using probes labeled with platinum-based labeling compounds of the invention, particularly array and microarray hybridization methods.
    Type: Application
    Filed: March 1, 2002
    Publication date: November 7, 2002
    Applicant: Stratagene
    Inventors: Jeffrey Braman, Haoqiang Huang
  • Patent number: 6465648
    Abstract: A reaction product useful as an organic photoconductive material for electrophotographic photoconductors is provided, obtainable by reacting (i) a nitrile derivative, (ii) a phthalonitrile derivative or a 1,3-diiminoisoindoline derivative and, if necessary, (iii) a metal or a metal-containing compound.
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: October 15, 2002
    Assignee: Ricoh Company, Ltd.
    Inventors: Kaoru Tadokoro, Masayuki Shoshi, Michihiko Namba, Tomoyuki Shimada, Chiaki Tanaka
  • Patent number: 6455693
    Abstract: The invention is based on the discovery that a new class of molecular rectangles can be prepared by using a stepwise synthesis plan under mild temperature conditions. The new rectangles are neutral and exhibit luminescence in solution at room temperature.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: September 24, 2002
    Assignee: Academia Sinica
    Inventors: Gene-Hsiang Lee, Shie-Ming Peng, Chong-Mou Wang, Kuang-Lieh Lu, Balasubramanian Manimaran, Fang-Yuan Lee, Thangamuthu Rajandran
  • Patent number: 6448400
    Abstract: Ionophores having the capacity spontaneously assemble in solution and composed of hydrogen bonded monomers of 5′-(t-butyl-dimethylsilyl)-2′,3′-O-isopropylidene-isoguanosine, 5′-(t-butyl-dimethylsilyl)-2′,3′-O-isopropylidene-thio-isoguanosine or 2′,3′-Di-O-acetyl-5′-(t-butyl-dimethylsilyl)-isoguanosine are used to remove 137-cesium ions (137Cs+) from nuclear waste.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: September 10, 2002
    Assignee: The University of Maryland at College Park
    Inventors: Jeffrey T. Davis, Sampath K. Tirumala, Allison L. Marlow
  • Patent number: 6440971
    Abstract: A binuclear DNA-threading transition metal complex with the general formula: (L1)-M1-(D1-B-D2)-M2-(L2) wherein D1-B-D2 is a bridging ligand; D1 is a polycyclic heteroaromatic ligand in which aza nitrogens can form a bidentate or tridentate chelate with Ml; D2 is any bi- or oligodentate ligand co-ordinated to the transition metal M2; B is any appropriately substituted chain of at least two atoms; M1 is a transition metal ion with octahedral co-ordination sphere; M2 is any transition metal ion; L1 comprises a set of 1-3 ancillary ligands that saturate the remaining co-ordination sphere of M1; and L2 comprises a set of 1-4 ancillary ligands that saturate the remaining co-ordination sphere of M2. An example of the complex according to the invention is shown in the FIG. 1. The complex according to the invention is useful for treatment of different diseases, such as cancer and infections.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: August 27, 2002
    Assignee: A+ Science Invest AB
    Inventors: Per Lincoln, Bengt Nordén
  • Patent number: 6420581
    Abstract: A process for the manufacture of zinc hexasulfide amine complexes comprising reacting zinc, sulfur and a molar excess of amine at an elevated temperature to obtain a reaction mixture comprising zinc hexasulfide amine complexes and excess amine. A first solvent in which the zinc hexasulfide amine complexes are largely not soluble is added to obtain a slurry of the reaction mixture. The zinc hexasulfide amine complexes may be recovered in a subsequent separation process.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: July 16, 2002
    Assignee: Flexsys America L.P.
    Inventors: Jayant S. Lodaya, Otto W. Maender, Paul M. Mitchem
  • Patent number: 6417178
    Abstract: Amyloid binding compounds which are derivatives of Chrysamine G, pharmaceutical compositions containing, and methods using such compounds to identify Alzheimer's brain in vivo and to diagnose other pathological conditions characterized by amyloidosis, such as Down's Syndrome are described. Pharmaceutical compositions containing Chrysamine G and derivatives thereof and methods using such compositions to prevent cell degeneration and amyloid-induced toxicity in amyloidosis associated conditions are also described. Methods using Chrysamine G derivatives to stain or detect amyloid deposits in biopsy or post-mortem tissue are also described. Methods using Chrysamine G derivatives to quantify amyloid deposits in homogenates of biopsy and post-mortem tissue are also described.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: July 9, 2002
    Assignee: University of Pittsburgh
    Inventors: William E. Klunk, Jay W. Pettegrew, Chester A. Mathis, Jr.
  • Patent number: 6399772
    Abstract: Organometallic compounds useful for forming aluminum films by chemical vapor deposition are disclosed. Also disclosed are methods of preparing the organimetallic compounds and methods of forming aluminum films.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: June 4, 2002
    Assignee: Rohm and Haas Company
    Inventors: Hyun-Koock Shin, Hyun-Joo Shin
  • Patent number: 6380383
    Abstract: Organometallic precursor compounds useful for forming aluminum films by chemical vapor deposition are disclosed. Also disclosed are methods of preparing the organometallic precursor compounds and methods of forming aluminum films.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: April 30, 2002
    Assignee: Rohm and Haas Company
    Inventor: Hyun-Koock Shin
  • Publication number: 20020040156
    Abstract: An S,S-ethylenediamine-N,N′-disuccinic acid iron alkali salt which contains a lactam compound represented by the following general formula (1): 1
    Type: Application
    Filed: August 17, 2001
    Publication date: April 4, 2002
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Toshitake Yamakawa, Haruo Sakai
  • Patent number: 6365587
    Abstract: The present application describes novel substituted aryl hydroxamic acids of formula I: or pharmaceutically acceptable salt forms thereof, wherein ring A is a 5-8 membered ring containing from 0-1 additional heteroatoms selected from N, O, and S, which are useful as metalloprotease inhibitors.
    Type: Grant
    Filed: May 13, 1999
    Date of Patent: April 2, 2002
    Inventors: Matthew E. Voss, Carl P. Decicco, Ruth R. Wexler
  • Patent number: 6358953
    Abstract: Disclosed are novel metal pterin and pterin analog complexes and compositions useful as antineoplastic and antiviral agents.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: March 19, 2002
    Inventor: Phillip B. B. Moheno
  • Patent number: 6350740
    Abstract: The invention provides a method for enhancing the water solubility of cytotoxic trans-platinum complexes. The present invention also provides a method for killing tumor cells, and a method for the treatment of tumors by the administration of a cytotoxic platinum coordination complex of the general formula SP4-2-[PtX(L)(L′)(B)]+.
    Type: Grant
    Filed: September 5, 2000
    Date of Patent: February 26, 2002
    Assignee: Virginia Commonwealth University
    Inventor: Nicholas Farrell
  • Patent number: 6348611
    Abstract: The present invention relates to a process for carbonylation of epoxide derivatives, in which the reactivity, selectivity and the yield are superior. More specifically, the present invention relates to a process for hydroformylation of an epoxide derivative in which there is utilized a transition metal catalyst having a cyclopentadienyl radical, thereby improving the reactivity and selectivity. Further, the present invention relates to a process for hydroesterification of an epoxide derivative, in which a proper catalyst is selected, and the reaction temperature and pressure are adjusted within proper ranges under the presence of a cobalt catalyst, thereby improving the product selectivity and the yield.
    Type: Grant
    Filed: August 25, 1999
    Date of Patent: February 19, 2002
    Assignee: Samsung Electronic Co., Ktd.
    Inventors: Byeong-No Lee, Duck-Joo Yang, Young-Hun Byun
  • Patent number: 6313333
    Abstract: The present invention relates to tetra- and penta-nuclear platinum complexes with antitumor activity, to a method for preparing them and to pharmaceutical compositions containing them.
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: November 6, 2001
    Assignee: Setanta Therapeutics, Inc.
    Inventors: Giovanni Da Re, Roberto Di Domenico, Silvano Spinelli, Nicholas Farrell
  • Patent number: 6294670
    Abstract: The invention provides a probe for detecting a highly ordered structural site of a nucleic acid of a gene by specifically binding with the structural site to generate an electrochemical response. The inventive probe comprises a cyclic ligand containing ferrocenyl group and a DNA threading intercalating moiety, such as 1, 4, 5, 8-tetrasubstituted naphthalene, 9, 10-disubstituted anthracene, and 1, 5-disubstituted anthraquinone. Current of the cyclic ligand is not observed due to interaction such as stacking or so called charge transfer between ferrocenyl group and the DNA threading intercalating moiety in conventional electrolyte. The binding of the ligand with a highly ordered structural site of a single stranded nucleic acid, where nucleic base inserts between the cavity of cyclic ligand, inhibits the intramolecular interaction of the ligand to convert the ligand into its electrically active form, and as a result, current is observed.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: September 25, 2001
    Assignee: Kyushu University
    Inventor: Shigeori Takenaka
  • Patent number: 6288229
    Abstract: A ruthenium (II) complex having a dipyridophenazine or tetrapyridophenazine ligand and being represented by the formula (1) or (2) shown in the specification. Upon absorption of light, the complex emits fluorescence for a longer life time in a protic solvent as compared with known analogous compounds.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: September 11, 2001
    Assignee: Secretary of Agency of Industrial Science and Technology
    Inventors: Nobuko Komatsuzaki, Ryuzi Katoh, Yuichiro Himeda, Hideki Sugihara, Hironori Arakawa, Kazuyuki Kasuga
  • Publication number: 20010019782
    Abstract: A light-emitting material comprises a compound having a partial structure represented by the following formula (1) or tautomer thereof: 1
    Type: Application
    Filed: December 27, 2000
    Publication date: September 6, 2001
    Inventors: Tatsuya Igarashi, Keizo Kimura, Kazumi Nii
  • Patent number: 6274806
    Abstract: A platinum complex represented by the formula PtL1/L2 or PtLX1/LX2 wherein L1 and L each represent a ligand selected from the group consisting of 2,2′-bipyridine compounds having at least one anionic group and 1,10-phenanthroline compounds having at least one anionic group, L2 represents a dithiolate selected from those represented by the formulas (a) through (d) shown in the specification, and X1 and X2 each represent a thiolate selected from those represented by the following formulas (e) and (f) shown in the specification. A dye-sensitized electrode includes a substrate having an electrically conductive surface, an oxide semiconductor film formed on the conductive surface, and the above platinum complex supported on the film. A solar cell includes the above electrode, a counter electrode, and an electrolyte disposed therebetween.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: August 14, 2001
    Assignee: Agency of Industrial Science and Technology
    Inventors: Hideki Sugihara, Kohjiro Hara, Kazuhiro Sayama, Hironori Arakawa, Ashraful Islam, Lok Pratap Singh
  • Patent number: 6268357
    Abstract: Organic complexes of vanadium are provided, having the general structure VL3, where V is vanadium(III) and L is a monoprotic bidentate ligand that forms a five-membered, unsaturated vanadium containing ring, having vanadium coordinating oxygen or sulfur ring heteroatoms, and where the vanadium containing ring is fused to a six-membered heterocyclic ring. Preferably L is a hydroxypyrone or a hydroxypyridinone. The complexes have a number of uses, including the treatment of elevated blood glucose and related disorders, treatment of proliferative disorders, etc.
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: July 31, 2001
    Assignee: The University of British Columbia
    Inventors: Chris Orvig, John H. McNeill, Marco Melchior
  • Patent number: 6180788
    Abstract: The invention is directed towards a metal complex having the formula LMX1X2. L is a bidentate nitrogen-containing ligand with more than 2 nitrogens. M is copper, silver, or gold. X1 and X2 are independently selected from the group consisting of halogens, hydride, triflate, acetate, trifluoroacetate, perfluorotetraphenylborate, tetrafluoroborate, C1 through C12 alkyl, C1 through C12 alkoxy, C3 through C12 cycloalkyl, C3 through C12 cycloalkoxy, aryl, and any other moiety into which a monomer can insert. Such metal complexes have a tetrahedral or pseudo-tetrahedral structure.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: January 30, 2001
    Assignee: Exxon Research and Engineering Company
    Inventor: Robert T Stibrany
  • Patent number: 6177528
    Abstract: Novel aminomethylphosphine ligands have particular substituents on the central carbon atom. Such ligands form coordination complexes that may be catalysts for the polymerization of monomers or other catalytic induced reactions.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: January 23, 2001
    Assignee: Symyx Technologies, Inc.
    Inventors: Anne Marie LaPointe, Anil Guram, Timothy S. Powers, Bernd Jandeleit, Thomas Boussie, Cheryl Lund
  • Patent number: 6168776
    Abstract: Amyloid binding compounds which are non-azo derivatives of Chrysamine G, pharmaceutical compositions containing, and methods using such compounds to identify Alzheimer's brain in vivo and to diagnose other pathological conditions characterized by amyloidosis, such as Down's Syndrome are described. Pharmaceutical compositions containing non-azo derivatives of Chrysamine G and methods using such compositions to prevent cell degeneration and amyloid-induced toxicity in amyloidosis associated conditions are also described. Methods using non-azo Chrysamine G derivatives to stain or detect amyloid deposits in biopsy or post-mortem tissue are also described. Methods using non-azo Chrysamine G derivatives to quantify amyloid deposits in homogenates of biopsy and post-mortem tissue are also described.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: January 2, 2001
    Assignee: University of Pittsburgh
    Inventors: William E. Klunk, Jay W. Pettegrew, Chester A. Mathis, Jr.
  • Patent number: 6143357
    Abstract: Organometallic compounds useful for forming aluminum films by chemical vapor deposition are disclosed. Also disclosed are methods of preparing the organimetallic compounds and methods of forming aluminum films.
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: November 7, 2000
    Assignee: Rohm and Haas Company
    Inventors: Hyun-Koock Shin, Hyun-Joo Shin
  • Patent number: 6136827
    Abstract: The present invention is directed to cyclic amines of the formula I: ##STR1## (wherein R.sup.1, R.sup.2, R.sup.3, m and n are defined herein) which are useful as modulators of chemokine receptor activity. In particular, these compounds are useful as modulators of the chemokine receptors CCR-1, CCR-2, CCR-2A, CCR-2B, CCR-3, CCR-4, CCR-5, CXCR-3, and/or CXCR-4.
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: October 24, 2000
    Assignee: Merck & Co., Inc.
    Inventors: Charles G. Caldwell, Paul E. Finke, Malcolm Maccoss, Laura C. Meurer, Sander G. Mills, Bryan Oates