Results 261 to 270 of about 1,767,737 (317)
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Molecular Weight Determinations
Science, 1961A Beams magnetically suspended equilibrium ultracentrifuge was used to determine the molecular weight of sucrose, ribonuclease, and insulin. Both long- and short-column ultracentifuge cells were used. The longer cells gave greater precision, but required a longer time for equilibrium to occur.
R D, Boyle, P E, Hexner
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On the molecular weight of myosin
Biochimica et Biophysica Acta, 1958Abstract By the Archibald approach to sedmentation equilibrium method, we have found a molecular weight of 4.2·10 5 g for either, (I) myosin (A) or, (2) the principal, ( ca . 65% by weight), schlieren-visible component of 5-h extracted myosin B. This same value has also been estimated from the conventional sedimentation velocity-diffusion method ...
P H, VON HIPPEL +3 more
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Whale High-Molecular-Weight and Low-Molecular-Weight Kininogens
Thrombosis Research, 2000The expression of high-molecular-weight and low-molecular-weight kininogen mRNAs in the whale liver was examined by reverse transcription-polymerase chain reaction. The nucleotide sequences of the high-molecular-weight and low-molecular-weight kininogen cDNAs were analyzed and deduced to the amino acid sequences.
U, Semba +4 more
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Molecular Weights and Molecular-Weight Distributions
1977In synthesizing macromolecules in vitro and in vivo, monodisperse macromolecules (i.e., those in which every molecule has the same molecular weight) only occur under specific mechanistic conditions. The overwhelming majority of reactions proceed more or less randomly, and the resulting macromolecular substance shows a more or less broad molecular ...
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Expert Opinion on Pharmacotherapy, 2000
Since its discovery, nearly 90 years, heparin has been used successfully for the treatment of thromboembolic processes. However, therapy with heparin has several important limitations. Most importantly, the poor predictability of its anticoagulant effects has led to the development of the low molecular weight heparins (LMWHs), which are derived from ...
O M, Aguilar, N S, Kleiman
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Since its discovery, nearly 90 years, heparin has been used successfully for the treatment of thromboembolic processes. However, therapy with heparin has several important limitations. Most importantly, the poor predictability of its anticoagulant effects has led to the development of the low molecular weight heparins (LMWHs), which are derived from ...
O M, Aguilar, N S, Kleiman
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Journal of Applied Polymer Science, 2006
AbstractThe influence of the polymerization time on the molecular weight (Mw, Mn, Mp, and Mz), molecular weight distribution (MWD) and relative MWD of polypropylene (PP) in the propylene polymerization with a Mg(OEt)2/DIBP/TiCl4/PTES/AlEt3 catalyst system in the slurry phase has been studied by using gel permeation chromatography (GPC), where Mg(OEt)2,
Abedi, S. +3 more
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AbstractThe influence of the polymerization time on the molecular weight (Mw, Mn, Mp, and Mz), molecular weight distribution (MWD) and relative MWD of polypropylene (PP) in the propylene polymerization with a Mg(OEt)2/DIBP/TiCl4/PTES/AlEt3 catalyst system in the slurry phase has been studied by using gel permeation chromatography (GPC), where Mg(OEt)2,
Abedi, S. +3 more
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Molecular Weight and Molecular Weight Distribution of Kraft Lignins
MRS Proceedings, 1990ABSTRACTKraft lignins are the lignin degradation products from kraft pulping. They are complex, heterogeneous polymers with some polar character. The molecular weight of kraft lignins greatly affect the physical properties of black liquors, and are of primary importance in separation from black liquor and in evaluating potential uses.Several purified ...
Wolfgang Schmidl +2 more
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Nature, 1962
IN a recent article Wright1 put forward the hypothesis that the molecular weights of the enzymes tabulated by Dixon and Webb2 fall near three series of numbers expressed by 2n × 12,000, 2n × 16,000 and 2n × 19,000, n taking integral values 0–4. This hypothesis was based entirely on the experimental values themselves, mainly by means of graphical ...
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IN a recent article Wright1 put forward the hypothesis that the molecular weights of the enzymes tabulated by Dixon and Webb2 fall near three series of numbers expressed by 2n × 12,000, 2n × 16,000 and 2n × 19,000, n taking integral values 0–4. This hypothesis was based entirely on the experimental values themselves, mainly by means of graphical ...
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