Abstract: Polymer surfaces coated with organometallic layers, wherein the organometallic layers and polymer surfaces have functional groups that react to bond the organometallic layer to the polymer surface with organometallic functional groups remaining unreacted for the subsequent covalent attachment of organic overlayers. Coating methods and coated articles are also disclosed.

Abstract: The computerized system provides a method to inventory articles, to locate lost or stolen articles and to recover a lost or stolen article. The system applies an electronic tag to each article of a multiplicity of articles or only to a valuable article and employs a computer to maintain an inventory of all articles. Use is made of a global positioning sysytem to locate a lost or stolen article as wel as to track movements of the article. A history of the movement of the article may also be plotted on a map. An electronic geographic boundary area may also be placed around an article that can be used to emit a signal indicative of the article leaving the area.

Abstract: Phosphorus-based coatings having a plurality of phosphate moieties, a plurality of phosphonate moieties, or both, covalently bonded to an oxide surface of an implantable substrate exhibiting one or more of the following characteristics: (a) the surface phosphorus-containing group density of the coated regions of the substrate is at least about 0.1 nmol/cm2; (b) the phosphorus-based coating has a thickness of less than about 10 nm; or (c) the surface phosphorus-containing group density of the coated regions of the substrate is equal to or greater than the surface hydroxyl group density of the oxide surface of the substrate. Implantable devices embodying the coated substrates are also disclosed.

Abstract: Provided herein is a method for altering an electronic property of a structure comprising an oxide surface or an oxide surface in electronic communication with the structure, the method comprising providing a covalently-bound film comprising at least one organic acid residue on a portion of the oxide surface so that at least one of the following properties of the structure is modified: (a) the charge carrier injection barrier properties; (b) the charge conductivity properties; (c) the charge transport properties; (d) the work function properties; (e) the sub-threshold slope; and (f) the threshold voltage.

Abstract: The present invention provides a process for providing on the surface of a substrate an adherent phorphorous acid-based coating layer, the method comprising contacting said surface with a carrier conveying a coating composition comprising an acid selected from the group consisting of phosphoroic acids, organo-phosphoric acids, phosphonic acids, and mixtures thereof, at a sufficient temperature and for a sufficient time to bond at least a portion of the acid in the compositon to the oxide surface.

Abstract: The present invention provides a process for providing on the surface of a substrate a chemically bonded, densely-packed, oriented organic acid-based mono-layer, the method comprising: (i) providing on at least a portion of said surface of said substrate a densely-packed, adsorbed oriented mono-layer comprising a plurality of at least one organic acid species wherein each of the organic acid species comprising said adsorbed mono-layer has at least one acid functional group associated with said surface of said substrate; and (ii) bonding to the surface of said substrate said surface-associated acid functional groups.

Abstract: The computerized system provides a method to inventory articles, to locate lost or stolen articles and to recover a lost or stolen article. The system applies an electronic tag to each article of a multiplicity of articles or only to a valuable article and employs a computer to maintain an inventory of all articles. Use is made of a global positioning sysytem to locate a lost or stolen article as wel as to track movements of the article. A history of the movement of the article may also be plotted on a map. An electronic geographic boundary area may also be placed around an article that can be used to emit a signal indicative of the article leaving the area.

Abstract: The present invention provides increased adhesion between the native oxide surface of a material and adhesive material or tissue by providing a phosphorous-based coating layer comprising a plurality of omega-functionalized organo-phosphonate moieties bonded to the native oxide surface of a substrate by a phosphonate bond and a plurality of one or more coating moieties selected from the group consisting of inorganic, organic, or bioactive moieties, each said coating moiety being bonded to the omega-functional group of at least one omega-functionalized organo-phosphonate moiety by means of a member of the group comprising a metal complex and an organic polymer, and when bonded by means of a metal complex, the metal complex further characterized by being derived from a metal alkoxide reagent, and when bonded by means of an organic polymer, the organic polymer further characterized by being derived from an ionic or step-reaction polymerization which incorporates one or more of said omega-functional groups into sa

Abstract: The present invention provides a dense-coverage, adherent phosphorous-based coating on the native oxide surface of a material. Disclosed phosphorous-based coatings include phosphate and organo-phosphonate coatings. The present invention also provides further derivatization of the phosphorous-based coatings to yield dense surface coverage of chemically reactive coatings and osetoblast adhesion-promoting and proliferation-promoting coatings on the native oxide surface of a titanium material.

Abstract: Ligand-containing coating layers on the surface of hydroxide-bearing substrates comprising transition metal atoms selected from the group consisting of Group IVB, Group VB and Group VIB of the Periodic Chart covalently bonded to the surface hydroxyls of said substrate, wherein each transition metal atom is further covalently bonded to one or more ligands of said coating layer, thereby covalently bonding said coating layer to said substrate. Disclosed ligands include inorganic phosphates and organic phosphonates.

Abstract: Self-assembled organic ligand monolayers on the surface of a metal oxide or silicon oxide substrate overlayer, wherein transition metal atoms selected from Group IV, Group V or Group VI of the Periodic Chart are covalently bonded to the surface oxygens of the substrate, and each transition metal atom is further covalently bonded to one or more of the organic ligands of the monolayer, thereby covalently bonding the organic monolayer to the substrate overlayer. Methods of forming the self-assembled organic ligand monolayers of the present invention are also disclosed.

Abstract: A track and field board supporting apparatus and hurdle includes a support assembly for positioning on a track or field surface, substantially vertical members emanating from said support assembly and a board holder which facilitates securing a board thereto, wherein the board is aligned properly at/over a desired location on the track.

Abstract: The chlorine content in a chlorinated hydrocarbon in the presence or absence of air and moisture can be reduced by bringing the chlorinated hydrocarbon into contact with a dechlorination reagent which comprises (i) a complex of a substantially nontoxic metal having at least two oxidation states and (ii) a reducing agent which reductively returns the complex from its second oxidation step to its first oxidation stage. A representative embodiment involves bis-(.eta..sup.5 -cyclopentadienyl)titanium dichloride and sodium tetrahydridoborate.

Abstract: Nitrogen-containing substituents of aliphatic or aromatic compounds can be reduced by treatment with a reagent comprising (i) at least one complex of a transition metal of group 4 or 5 with a multidentate or unidentate organic or inorganic ligand and (ii) a reducing agent. The reaction is conducted optionally in the presence of an aliphatic or aromatic amine, and/or in the presence of an inert organic solvent.

Abstract: In a method using organic vapor phase deposition (OCPD), for the growth of thin films of optically nonlinear organic salts, a volatile precursor of each component of the salt is carried as a vapor to a hot-wall reaction chamber by independently controlled streams of carrier gas. The components react to form a polycrystalline thin film on substrates of glass and gold. Excess reactants and reaction products are purged from the system by the carrier gas. For example, the method provides the growth of polycrystalline, optically nonlinear thin films of 4'-dimethylamino-N-methyl-4-stilbazolium tosylate (DAST) with >95% purity.

Abstract: The halide content of halogenated aromatic hydrocarbons such as PCBs can be reduced by treatment with a reagent comprising (i) at least one complex of a transition metal of group 4 or 5 with a multidentate or unidentate organic or inorganic ligand and (ii) a reducing agent. The reaction is conducted in the presence of an aliphatic or aromatic amine, optionally in the presence of an inert organic solvent.

Abstract: A process is disclosed for the catalytic oxydation of olefins to carbonyl compounds with molecular oxygen at elevated temperatures in the presence of rhodium oxide on a support. The process is applicable to a broad variety of olefins and is not limited to special olefins and forms especially ketones in a high selectivity.

Abstract: Agonists and antagonists of rCRF are disclosed that exhibit good binding affinity to CRF receptors. One exemplary agonist is: H-Ser-Gln-Glu-Pro-Pro-Ile-Ser- Leu-Asp-Leu-Thr-Phe-His-Leu-Leu-Arg-Glu-Met-Leu-Glu-Met- Ala-Arg-Ala-Glu-Gln-Glu-Ala-Glu-Gln-Ala-Ala-Leu-Asn-Arg- Leu-Leu-Leu-Glu-Glu-Ala-NH.sub.2. In the agonists, one or more of the first five N-terminal residues may be deleted or may be substituted by a peptide up to 10 amino acids long. A number of other substitutions may also be made throughout the chain. Similar peptides which function as CRF antagonists are created by deleting the first 7, 8 or 9 N-terminal residues. These analogs are coupled to a cytotoxin, such as gelonin, by a dialdehyde or the like, e.g., glutaraldehyde. The conjugates may be used to eliminate CRF Target Cells, and thus to regulate secretion of ACTH, .beta.-lipotropin and the like.

Abstract: A process is disclosed for the catalytic oxydation of olefins to carbonyl compounds with molecular oxygen at elevated temperatures in the presence of rhodium oxide on a support. The process is applicable to a broad variety of olefins and is not limited to special olefins and forms especially ketones in a high selectivity.

Abstract: Heterocatalyst systems wherein a metal complex is reacted with an --OH group that is in a zeolite or molecular sieve pore, aperture, channel, cavity or cage; improved carbonylation and hydrogenation catalysts, as well as catalysts for Fischer-Tropsch reactions are disclosed; rhodium reaction product with an --OH group within a type 13X or 13Y zeolite cage is a typical catalyst.