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  • Polymer and Materials Science  (17)
  • Cell & Developmental Biology  (8)
  • Lunar and Planetary Science and Exploration  (7)
  • 1
    Electronic Resource
    Electronic Resource
    Ligation of nicked SV40 DNA in a polyethylene glycol-condensed state as a test for net coiling (1978)
    New York : Wiley-Blackwell
    Biopolymers 17 (1978), S. 237-241 
    Details
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bip.1978.360170119
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  • 2
    Electronic Resource
    Electronic Resource
    Molding of polyacrylonitrile (1968)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 12 (1968), S. 1939-1946 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: A method has been devised whereby clear, chemically resistant, compression-molded articles of polyacrylonitrile are prepared within minutes. The molding powder consists of preformed polyacrylonitrile, acrylonitrile, and initiator. The effects of process variables on the physical properties are discussed.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1968.070120813
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  • 3
    Electronic Resource
    Electronic Resource
    Structural modification and molding of polyacrylonitrile (1969)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 13 (1969), S. 1159-1167 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Polyacrylonitrile can be compression-molded with conventional equipment if the inherent polymer particle structure is modified. With normal polymerization methods, a circumferential orientation in the polymer particle is obtained. This structure can be changed under the effects of shear to yield highly ordered, laminar particles with planar orientations. In this form, PAN can be compression-molded into tough, clear, chemically resistant articles with retention of the laminar structure. The polymer has been characterized by its x-ray diffraction and infrared spectrum which, in combination, distinguish it from previously observed forms of PAN.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1969.070130605
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  • 4
    Electronic Resource
    Electronic Resource
    Protein kinase C inhibitor H-7 alters the actin cytoskeleton of cultured cells (1989)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 141 (1989), S. 74-84 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The effects of the protein kinase C inhibitor H-7 on the actin cytoskeleton of cultured cells (Swiss 3T3 and PTK2) are described. As documented by fluorescence microscopy and the higher-resolution technique of photoelectron microscopy, the effects are rapid and dramatic; exposure to 30 μM H-7 in culture medium for less than 6 min is sufficient to induce a significant reduction in the numbers and thickness of actin microfilament bundles and alterations in the morphology of cell-cell boundaries in PTK2 cells. One-hour exposure to 30 μM H-7 results in nearly complete depletion of normal actin microfilament bundles from all of the cell types examined, without dramatic changes in overall cell shape. The intermediate filament and microtubule cytoskeletal networks did not appear to be affected to any extent over the times and doses examined. Forty-five minutes of exposure of Swiss 3T3 cells to 200 μM of either HA1004 (which is comparable to H-7 with respect to inhibition of cyclic nucleotide dependent kinases) or to the protein kinase C inhibitor sangivamycin did not induce the actin alterations characteristic of H-7. In addition, depletion of protein kinase C from Swiss 3T3 cells by means of phorbol ester-induced down-regulation did not prevent the effects of H-7 on the actin cytoskeleton. These results demonstrate that the protein kinase C inhibitor H-7 has a specific and rapid effect on the actin cytoskeleton, and furthermore H-7 may have biochemical effects beyond those mediated by inhibition of protein kinase C or the cyclic nucleotide dependent kinases.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1041410112
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  • 5
    Electronic Resource
    Electronic Resource
    Phosphatidylinositol-specific phospholipase C From Bacillus cereus: Improved purification, amino acid composition, and amino-terminal sequence (1989)
    New York, N.Y. : Wiley-Blackwell
    Journal of Cellular Biochemistry 39 (1989), S. 315-325 
    Details
    ISSN: 0730-2312
    Keywords: N-terminal sequence ; bacterial phospholipase ; structure ; isolation ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Phosphatidylinositol-specific phospholipase C was purified in a 27% yield from the culture medium of Bacillus cereus by a combination of ammonium sulfate precipitation and ion-exchange and hydrophobic interaction chromatography. The purified enzyme was free of other phospholipase C-type activities and exhibited a high specific activity of approximately 1,300 units/mg. Amino acid composition analysis and sodium dodecyl sulfate-polyacrylamide gel electrophoresis indicated a molecular weight of about 35 kDa. The sequence of the first 29 N-terminal amino acids was also determined.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcb.240390311
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  • 6
    Electronic Resource
    Electronic Resource
    Photoelectron imaging of DNA (1990)
    New York : Wiley-Blackwell
    Biopolymers 29 (1990), S. 1491-1493 
    Details
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bip.360291015
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  • 7
    Electronic Resource
    Electronic Resource
    Polymer substrates for controlled biological interactions (1994)
    New York, N.Y. : Wiley-Blackwell
    Journal of Cellular Biochemistry 56 (1994), S. 155-161 
    Details
    ISSN: 0730-2312
    Keywords: plyetheylene oxide ; receptor-mediated interactions ; biomaterials ; tissue regeneration ; ligands ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: The identification of a myriad of small peptide and carbohydrate lieands recognizes by cell surface receptors has generated enthusiasm for the use of these ligands of components of biomaterials dor controlling cellular interactions. Achiening control of cell interaations via ligand modification of materials also refquires that nonspecific interactions of cells with these materials due to supface adsorption of biological macromolecules is milimized. Polyetylene oxide (PEO) exhibits extraordinary inertness toward most biological macromlecules and is thus receiving increasing attention as a component of new materials for controlling cell behavior. Both surface and bulk modifications with PEO are being applied to develop a range of bland substrate material as vehicles for ligand immobilization.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcb.240560206
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  • 8
    Electronic Resource
    Electronic Resource
    Partial isolation from intact cells of a cell surface-exposed lysophosphatidylinositol-phospholipase C (1997)
    New York, N.Y. : Wiley-Blackwell
    Journal of Cellular Biochemistry 65 (1997), S. 550-564 
    Details
    ISSN: 0730-2312
    Keywords: ecto-PLC ; ecto-enzyme ; phosphoinositide-specific phospholipase C ; cell surface enzyme ; lyso-PI-cleaving PLC ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: A novel cell surface phosphoinositide-cleaving phospholipase C (ecto-PLC) activity was isolated from cultured cells by exploiting its presumed external exposure. Biotinylation of intact cells followed by solubilization of the biotinylated proteins from a membrane fraction and recovery onto immobilized-avidin beads, allowed assay of this cell surface enzyme activity apart from the background of the substantial family of intracellular PLCs. Several cell lines of differing ecto-PLC expression were examined as well as cells stably transfected to overexpress the glycosylphosphatidylinositol (GPI)-anchored protein human placental alkaline phosphatase (PLAP) as a cell surface enzyme marker. The resulting bead preparations from ecto-PLC positive cells possessed calcium-dependent PLC activity with preference for lysophosphatidylinositol (lysoPI) rather than phosphatidylinositol (PI). The function of ecto-PLC of intact cells evidently is not to release GPI-anchored proteins at the cell surface, as no detectable Ca2+-dependent release of overexpressed PLAP from ecto-PLC-positive cells was observed. To investigate the cell surface linkage of the ecto-PLC itself, intact cells were treated with bacterial PI-PLC to cleave simple GPI anchors, but no decrease in ecto-PLC activity was observed. High ionic strength washes of biotinylated membranes prior to the generation of bead preparations did not substantially reduce the lysoPI-PLC activity. The results verify that the ecto-PLC is truly cell surface-exposed, and unlike other members of the PLC family that are thought to be peripheral membrane proteins, this novel lysoPI-PLC is most likely a true membrane protein. J. Cell. Biochem. 65:550-564. © 1997 Wiley-Liss Inc.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Foreword (1993)
    New York, NY [u.a.] : Wiley-Blackwell
    Microscopy Research and Technique 25 (1993), S. 353-353 
    Details
    ISSN: 1059-910X
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jemt.1070250502
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  • 10
    Electronic Resource
    Electronic Resource
    Determination of pendant allyl and monomer content in polydiallylphthalate (1984)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 29 (1984), S. 407-411 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Methods are described for the determination of diallylphthalate monomer and pendant allyl contents in homopolymers of diallylphthalate. The monomer content was determined by gel permeation chromatography. The total allyl content was determined by FTIR and computer subtraction of solvent spectrum. The pendent allyl content can be calculated from the difference between total allyl and allyl caused by monomer. Determination of both monomer and pendant allyl content in the prepolymer is essential for accurate prediction of the physical properties of the cured polymer.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1984.070290138
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