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  • 1
    Electronic Resource
    Electronic Resource
    The polymerization of hexachloro cyclotriphosphazene by molybdenum phosphate and tungsten phosphate (1985)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 132 (1985), S. 197-201 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Das Polymere aus (NPCl2)3 wurde durch Substanzpolymerisation erhalten. Insbesondere wurde überwiegend lineares Polymeres gebildet, wenn Wolframphosphat als Katalysator verwendet wurde.
    Notes: The polymer of (NPCl2)3 was obtained by bulk polymerization. Especially, linear polymer was predominantly formed when tungsten phosphate as catalyst was used.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1985.051320115
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  • 2
    Electronic Resource
    Electronic Resource
    Synthesis and thermal properties of poly(phenoxy trifluoroethoxy phosphazenes) (1983)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 119 (1983), S. 209-212 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Copolymers were prepared by the reaction of poly(dichloro phosphazene), phenoxide, and trifluoro ethoxide in THF. Elastic copolymers having lower Tg than that of poly(trifluoroethoxy phosphazene) were formed when the ratio of phenoxide: trifluoro ethoxide was between 0.5:1.5 and 1.5:0.5.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1983.051190117
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  • 3
    Electronic Resource
    Electronic Resource
    Phosphonitrilic chloride. XXVI. Synthesis of cyclophosphazene polymer by polycondensation reaction of tetrachlorodiphenyl triphosphazene and aromatic diamine compounds (1975)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 42 (1975), S. 55-61 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Tetrachlordiphenylcyclotriphosphazen N3P3Cl4(C6H5)2 (TPC) wurde durch Friedel-Crafts-Reaktion hergestellt. Die Polykondensation von TPC mit aromatischen Diaminen wurde in Pyridin durchgeführt. Die erhaltenen Produkte waren wenig löslich in polaren Lösungsmitteln. Die durch Endgruppenanalyse ermittelten Molekulargewichte lagen zwischen 2800 und 10 800. Es handelte sich um amorphe, braune, gelbe oder farblose Feststoffe; ihre Erweichungspunkte lagen zwischen 100 und 120°C. Die elektrische Leitfahigkeit der aus TPC mit p-Phenylendiamin und p,p′-Diaminodiphenylsulfon erhaltenen Produkte wurde zu 5 × 1012 (Ωcm)-1 bzw. 1 × 1015 (Ω cm)-1 bestimmt.
    Notes: Tetrachlorodiphenyl cyclotriphosphazene N3P3Cl4(C6H5)2 (TPC) has been synthesized by Friedel-Crafts reaction. The polycondensation of TPC with aromatic diamine compounds has been carried out in pyridine. The products obtained from the reaction of TPC with aromatic diamine compounds were slightly soluble in polar organic solvents. The molecular weights measured by the method of end group analysis were about 2800 to 10800. The products were amorphous, brown, yellow or white coloured solids. The softening points of all polycondensation products were found to be in the region of 100°C to 120°C. The electrical conductivity of the products obtained from TPC with p-phenylenediamine and p,p′-diaminodiphenyl sulfone was determined to 5 × 1012 (Ωcm)-1 and 1 × 1015 (Ωcm)-1, respectively.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1975.050420104
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  • 4
    Electronic Resource
    Electronic Resource
    Phosphonitrilic chloride XXVIII. Synthesis of cyclophosphazene polymers by polycondensation between tetrabutoxydianilinocyclotriphosphazene and dichlorodiphenylsilane (1975)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 46 (1975), S. 63-72 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Cyclophosphazenoligomere (I) wurden durch Erhitzen von Tetrabutyloxydianilinocyclophosphazen und Dichlordiphenylsilan auf 100°C bis 160°C dargestellt. Diese Oligomeren sind in den meisten organischen Lösungsmitteln löslich. Molekulargewicht und Erweichungsbereich von (I) liegen bei 1 700 bis 37000 bzw. bei 95°C bis 180°C. Molekulargewicht und Erweichungsbereich der Cyclophosphazenpolymeren (II), die durch Erhitzen von (I) auf 190°C erhalten wurden, liegen bei 3 000 bis 180 000 bzw. bei 78°C bis über 300°C. Thermischer Abbau dieser Polymeren tritt im Bereich von 100°C bis 300°C ein. Durch thermogravimetrische Messungen wurde gefunden, daß das thermisch stabilste Polymere der Reihe (II) in Luft einen Gewichtsverlust von 15% bei 800°C aufweist.
    Notes: Cyclophosphazene oligomers (I) have been formed by heating tetrabutoxydianilinocyclophosphazene and dichlorodiphenylsilane at temperatures between 100°C to 160°C. These oligomers are soluble in most organic solvents. Molecular weights and softening points of (I) are in the range of 1700 to 37000 and 95°C to 180°C. Molecular weights and softening points of cyclophosphazene polymers (II) obtained by reheating of (I) at 190°C are about 3000 to 180000 and about 78°C to over 300°C. The thermal decomposition of the polymers (II) occurs in the range from 100°C to 300°C. It is shown by thermogravimetry that the weight loss of the thermally most stable polymer of (II) is about 15% in air at 800°C.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1975.050460106
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  • 5
    Electronic Resource
    Electronic Resource
    Structural fire protection in Japan (1988)
    New York, NY [u.a.] : Wiley-Blackwell
    Fire and Materials 13 (1988), S. 179-186 
    Details
    ISSN: 0308-0501
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Architecture, Civil Engineering, Surveying , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/fam.810130124
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  • 6
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    Three-dimensionally designed protein-responsive RNA devices for cell signaling regulation (2012)
    Oxford University Press
    Details
    Publication Date: 2012-10-10
    Description: The three-dimensional (3D) structures of many biomacromolecules have been solved to reveal the functions of these molecules. However, these 3D structures have rarely been applied to constructing efficient molecular devices that function in living cells. Here, we demonstrate a 3D structure-based molecular design principle for constructing short hairpin RNA (shRNA)-mediated genetic information converters; these converters respond to specific proteins and trigger the desired gene expression by modulating the function of the RNA-processing enzyme Dicer. The inhibitory effect on Dicer cleavage against the shRNA designed to specifically bind to U1A spliceosomal protein was correlated with the degree of steric hindrance between Dicer and the shRNA-protein complex in vitro : The level of the hindrance was predicted based on the models. Moreover, the regulation of gene expression was achieved by using the shRNA converters designed to bind to the target U1A or nuclear factor-B (NF-B) p50 proteins expressed in human cells. The 3D molecular design approach is widely applicable for developing new devices in synthetic biology.
    Print ISSN: 0305-1048
    Electronic ISSN: 1362-4962
    Topics: Biology
    Published by Oxford University Press
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  • 7
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    Dispersion relations for coupled surface plasmon-polariton modes excited in multilayer structures (2014)
    Oxford University Press
    Details
    Publication Date: 2014-02-12
    Description: The coupled surface plasmon-polariton (SPP) modes excited in an Al/SiO 2 /Al multilayer structure were analyzed using angle-resolved electron energy-loss spectroscopy (AREELS) with a relativistic electron probe. The dispersion relations for the coupled SPP modes were then directly observed and compared with predicted relations obtained via calculations. Good agreement was noted between the experimental and calculated results. In the multilayer structures, the dispersion relation for the coupled SPP modes was found to be sensitive to the thickness of each film, which could be interpreted qualitatively by the electron energy-loss probability calculated for thin aluminum (Al) films and narrow Al gaps using Kröger's formula. It was demonstrated that significant differences in the excitation probability for SPPs could be observed depending on the coupling modes.
    Print ISSN: 0022-0744
    Electronic ISSN: 1477-9986
    Topics: Electrical Engineering, Measurement and Control Technology , Natural Sciences in General , Physics
    Published by Oxford University Press on behalf of The Japanese Electron Microscopy Society.
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  • 8
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    Direct measurement of dispersion relation for surface plasmon-polaritons on silver nanoantennas (2014)
    Oxford University Press
    Details
    Publication Date: 2014-04-03
    Description: We investigated the degree to which the dispersion relation of surface plasmon-polaritons excited on silver nanoantennas depends on length. To accomplish this, dispersion measurements for individual silver nanoantennas with lengths from 220 nm to 2.5 μm were performed using angle-resolved electron energy-loss spectroscopy (AREELS) and spatially resolved EELS (SREELS). AREELS enabled measurements of the dispersion relation extending into the high-energy region of 2.6 eV for a 2.5-μm-long silver nanoantenna, without the need to excite Fabry–Perot-type resonances. Our experiments showed that the dispersion relation of silver nanoantennas that have the same diameter is independent of their individual lengths.
    Print ISSN: 0022-0744
    Electronic ISSN: 1477-9986
    Topics: Electrical Engineering, Measurement and Control Technology , Natural Sciences in General , Physics
    Published by Oxford University Press on behalf of The Japanese Electron Microscopy Society.
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  • 9
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    Quantitative and simultaneous translational control of distinct mammalian mRNAs (2013)
    Oxford University Press
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    Publication Date: 2013-07-16
    Description: The introduction of multiple genes into cells is increasingly required for understanding and engineering biological systems. Small-molecule–responsive transcriptional regulation has been widely used to control transgene expression. In contrast, methods for specific and simultaneous regulation of multiple genes with a single regulatory protein remain undeveloped. In this report, we describe a method for quantitatively tuning the expression of multiple transgenes with a translational regulatory protein. A protein that binds a specific RNA motif inserted in the 5'-untranslated region (UTR) of an mRNA modulates the translation of that message in mammalian cells. We provide two independent mechanisms by which to rationally fine-tune the output: the efficiency of translation correlates well with the distance between the inserted motif and the 5' terminus of the mRNA and is further modulated by the tandem insertion of multiple RNA motifs. The combination of these two approaches allowed us to fine-tune the translational efficiency of target mRNAs over a wide dynamic range. Moreover, we controlled the expression of two transgenes simultaneously and specifically by engineering each cis -regulatory 5'-UTR. The approach provides a useful alternative regulatory layer for controlling gene expression in biological research and engineering.
    Keywords: Synthetic Biology and Assembly Cloning, Protein-nucleic acid interaction, Ribosomes and Protein Translation
    Print ISSN: 0305-1048
    Electronic ISSN: 1362-4962
    Topics: Biology
    Published by Oxford University Press
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  • 10
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    Molecular mechanisms of syndecan-4 upregulation by TNF-{alpha} in the endothelium-like EAhy926 cells (2013)
    Oxford University Press
    Details
    Publication Date: 2013-06-27
    Description: Syndecan-4, a cell-surface heparan sulfate proteoglycan, can participate in inflammation and wound healing as a host defense molecule. Tumour necrosis factor (TNF)-α, one of the most potent proinflammatory cytokines, is known to upregulate syndecan-4 expression, but the precise mechanisms are unclear. To elucidate these mechanisms in detail, we examined syndecan-4 upregulation by TNF-α in the endothelium-like EAhy926 cell. Of the two putative nuclear factor kappa-B (NF-B) binding sites in the syndecan-4 gene ( SDC4 ) promoter, deletion or mutation of one or both sites significantly diminished the effects of TNF-α. Electrophoretic mobility shift assays showed that p65 and c-Rel, but not p50, bound to these NF-B binding sites, whereas pull-down assays showed binding of all three NF-B components. Chromatin immunoprecipitation assays clearly showed that p65 and phosphorylated p65, but not p50 or c-Rel, bound to the SDC4 promoter. An NF-B inhibitor, p65 knockdown and a transcriptional elongation inhibitor completely blocked the effect of TNF-α on SDC4 promoter activity and significantly, but not completely, blocked that on SDC4 mRNA expression. These data suggest that NF-B p65 could be a key mediator of syndecan-4 upregulation by TNF-α through two binding sites in the SDC4 promoter, but other NF-B-p65 independent pathways might also be involved through transcriptional elongation.
    Print ISSN: 0021-924X
    Electronic ISSN: 1756-2651
    Topics: Biology , Chemistry and Pharmacology
    Published by Oxford University Press on behalf of The Japanese Biochemical Society (JBS).
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