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Discrete forms of amylose are synthesized by isoforms of GBSSI in pea
Edwards, Anne, Vincken, Jean-Paul, Suurs, Luc C.J.M., Visser, Richard G.F., Zeeman, Samuel C., Smith, Alison M. and Martin, Cathie (2002)
Amyloses with distinct molecular masses are found in the starch of pea embryos compared with the starch of pea leaves. In pea embryos, a granule-bound starch synthase protein (GBSSIa) is required for the synthesis of a significant portion of the amylose. However, this protein seems...
Polymer-TiO2 nanocomposites
Nussbaumer, René J., Caseri, Walter R., Smith, Paul and Tervoort, Theo (2003)
Colloids of TiO2, where rutile was the only crystal modification which could be detected, with ca. 2.5 nm average particle diameter were synthesized by hydrolysis of TiCl4 in acidic solutions. The as-prepared particles were incorporated in polymers such as poly(vinyl alcohol)...
'Latent' ultraviolet light absorbers
Kocher, Christoph, Weder, Christoph and Smith, Paul (2003)
We have synthesized and characterized photo-labile and acid-labile esters of 2-hydroxybenzophenone and 2-hydroxybenzotriazoles, which, upon appropriate treatment, release classical UV absorbers. Two concepts of 'latent' UV absorbers are presented, namely, benzoyl-caged species...
"(Hot-)Water-Proof", semiconducting, platinum-based chain structures: Processing, products, and properties
Caseri, W.R., Chanzy, H.D., Feldman, K., Fontana, M., Smith, Paul, Tervoort, T.A., Goossens, J.G.P., Meijer, E.W., Schenning, A.P.H.J., Dolbnya, I.R., Debije, M.G., Haas, Matthijs P. de, Warman, John M., Craats, A.M. van de, Friend, R.H., Sirringhaus, H. and Stutzmann, N. (2003)
A promising solution to the environmental instability of semiconducting organic materials is presented. Thin, highly ordered films (see Figure, a scanning probe microscopy image), fibers, and field-effect transistors (FETs), comprising chain-structures based on the so-called...
Design, synthesis, and properties of new biodegradable aromatic/aliphatic liquid crystalline copolyesters
Chen, Yiwang, Wombacher, Ralf, Wendorff, Joachim H., Visjager, Jeroen, Smith, Paul and Greiner, Andreas (2003)
Liquid crystalline copolyesters of high molecular weight were obtained by polycondensation of aromatic diols, diacyl dichlorides, oligolactides, and poly(ethylene glycol)s. Hydrophilicity of the copolyesters was controlled by the content of ethyleneoxy moieties as verified by...
The binary system isotactic polypropylene/bis(3,4-dimethylbenzylidene)sorbitol
Kristiansen, Magnus, Werner, Michael, Tervoort, E., Smith, Paul, Blomenhofer, Markus and Schmidt, Hans-Werner (2003)
The phase behavior of the binary system consisting of the commercial nucleating and clarifying agent 1,3:2,4-bis(3,4-dimethyldibenzylidene)sorbitol (DMDBS, Millad 3988) and isotactic polypropylene (i-PP) was investigated over the entire concentration range by means of differential...
Polyamides X.34
Ehrenstein, Moritz, Smith, Paul and Weder, Christoph (2003)
Full Paper: A new series of semi-crystalline polyamides (PA), which comprise extended aliphatic segments between the amide moieties and which display an interesting amphiphilic character has been synthesized and characterized. The polymers PA-2.34, PA-4.34, PA-8.34, PA-10.34, and...
Synergistic gelation of solutions of isotactic polypropylene and bis-(3,4-dimethyl benzylidene) sorbitol and its use in gel-processing
Kristiansen, Magnus, Tervoort, Theo and Smith, Paul (2003)
We report the synergistic, rapid gelation of solutions of isotactic polypropylene (i-PP) and the nucleating agent 1,3:2,4-bis-(3,4-dimethyl benzylidene) sorbitol (DMDBS) in decalin. Cooling to room temperature of a solution comprising, for instance, 3.0 wt% of a moderately high...
Dichroic Ultraviolet Light Filters
Kocher, Christoph, Weder, Christoph and Smith, Paul (2003)
With the intention to produce dichroic filters for use in photoluminescent systems that rely on polarized UV light, we synthesized a number of linear, dichroic dyes, which absorb mainly in the near-UV range of the electromagnetic spectrum. These dyes were designed for compatibility...
Hydrolytic and enzymatic degradation of liquid-crystalline aromatic/aliphatic copolyesters
Chen, Yiwang, Jia, Zhihong, Schaper, Andreas, Kristiansen, Magnus, Smith, Paul, Wombacher, Ralf, Wendorff, Joachim H. and Greiner, Andreas (2004)
Aromatic/aliphatic copolyesters containing hydrophilic moieties in the main chain or side chain were synthesized by bulk polycondensation of aromatic monomers without or with solubilizing substituents and aliphatic monomers. Hydrolytic and enzymatic degradation studies were carried...
Growth and anisotropic properties of highly oriented films of quasi-one-dimensional platinum compounds
Fontana, Margherita, Chanzy, Henri, Stutzmann, Natalie, Caseri, Walter R. and Smith, Paul (2004)
The semiconductors [Pt(NH(2)dmoc)(4)][PtCl4], where dmoc denotes (S)-3,7-dimethyloctyl, and [Pt(NH(2)eh)(4)][PtCl4], where eh is (R)-2-ethylhexyl, are soluble quasi-one-dimensional compounds with a backbone of linearly arranged platinum atoms. Uniaxially oriented films of those...
Facile synthesis of linear poly(dibutylstannane)
Choffat, Fabien, Smith, Paul and Caseri, Walter (2005)
We present a facile, high-yield synthetic route to linear poly( dibutylstannane) of relatively high molecular weight (M-w = 20 x 10(3) g mol(-1)) through dehydropolymerization of dibutylstannane with the catalyst [RhCl(PPh3)(3)]. Unlike previously synthesized polystannanes, the...
Crystalline-crystalline block copolymers of regioregular poly(3-hexylthiophene) and polyethylene by ring-opening metathesis polymerization
Radano, Christopher P., Scherman, Oren A., Stingelin-Stutzmann, Natalie, Müller, Christian, Breiby, Dag W., Smith, Paul, Janssen, René A.J. and Meijer, E.W. (2005)
Block copolymers of regioregular poly(3-hexylthiophene) (P3HT) and polyethylene (PE) were synthesized through the chain transfer of olefin-terminated P3HT in the presence of cyclooctene via ring-opening metathesis polymerization (ROMP). Subsequent hydrogenation of the...
Mechanical properties of sorbitol-clarified isotactic polypropylene
Kristiansen, Magnus, Tervoort, Theo and Smith, Paul (2005)
The solid-state structure and yield behavior of isotactic polypropylene (i-PP) containing the nucleating/clarifying agent 1,3:2,4-bis(3,4-dimethylbenzylidene)sorbitol (DMDBS) was investigated in the additive concentration range 0-1 wt %. The raise of the crystallization temperature...
Polymeric quasi-one-dimensional platinum compounds
Bremi, Juliane, Fontana, Margherita, Caseri, Walter and Smith, Paul (2006)
Magnus' green salt, [Pt(NH3)4][PtCl4], is a quasi-one-dimensional inorganic semiconductor containing linear arrays of platinum atoms. Its use in materials science is limited since it does not melt prior to decomposition and is largely insoluble in water and organic solvents which...
UniPep
Zhang, Hui, Loriaux, Paul, Eng, Jimmy, Campbell, David, Keller, Andrew, Moss, Pat, Bonneau, Richard, Zhang, Ning, Zhou, Yong, Wollscheid, Bernd, Cooke, Kelly, Yi, Eugene C., Lee, Hookeun, Peskind, Elaine R., Zhang, Jing, Smith, Richard D. and Aebersold, Ruedi (2006)
There has been considerable recent interest in proteomic analyses of plasma for the purpose of discovering biomarkers. Profiling N-linked glycopeptides is a particularly promising method because the population of N-linked glycosites represents the proteomes of plasma, the cell...
Multicomponent semiconducting polymer systems with low crystallization-induced percolation threshold
Goffri, Shalom, Müller, Christian, Stingelin-Stutzmann, Natalie, Breiby, Dag W., Radano, Christopher P., Andreasen, Jens W., Thompson, Richard, Janssen, René A.J., Nielsen, Martin M., Smith, Paul and Sirringhaus, Henning (2006)
Blends and other multicomponent systems are used in various polymer applications to meet multiple requirements that cannot be fulfilled by a single material1, 2, 3. In polymer optoelectronic devices it is often desirable to combine the semiconducting properties of the...
Phase behavior, nucleation and optical properties of the binary system isotactic polypropylene/N,N′,N″-tris-isopentyl-1,3,5-benzene-tricarboxamide
Kristiansen, Per Magnus, Gress, Anja, Smith, Paul, Hanft, Doris and Schmidt, Hans-Werner (2006)
The phase behavior of the binary system consisting of isotactic polypropylene (i-PP) and N,N′,N″-tris-isopentyl-1,3,5-benzene-tricarboxamide (1)—a selected member of a class of novel, versatile ‘designer’ nucleating/clarifying agents—was investigated over the entire...
Electro-spun, semiconducting, oriented fibers of supramolecular quasi-linear platinum compounds
Fontana, Margherita, Caseri, Walter and Smith, Paul (2006)
The semiconducting Magnus’salt derivatives [Pt(NH2eh)4][PtCl4] and [Pt(NH2dmoc)4][PtCl4], with eh = (R)-2-ethylhexyl and dmoc = (S)-3,7-dimethyloctyl, are compounds that exhibit a supramolecular structure comprising a backbone of linear arrays of platinum atoms. These...
Interaction between genetic control of vascular endothelial growth factor production and retinoid responsiveness in psoriasis
Young, Helen S., Summers, Angela M., Read, Ian R., Fairhurst, David A., Plant, Darren J., Campalani, Emanuela, Smith, Catherine H., Barker, Jonathan N.W.N., Detmar, Michael J., Brenchley, Paul E.C. and Griffiths, Christopher E.M. (2006)
Vascular endothelial growth factor (VEGF) promotes angiogenesis, and elevated levels are found in plaques of psoriasis. Two VEGF polymorphisms, + 405 and - 460, are associated with early-onset psoriasis and are close to the functional activator protein-1 site (+ 419) through which...