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Molecular Weight of Melanin [PDF]
Nature, 1947 A METHOD of obtaining protein macro-molecules in crystalline form by the use of heparin has been described by Cohen1. As melanin is generally believed to have a high molecular weight, an attempt has been made to crystallize it by Cohen's method, using ethylene chlorhydrin as solvent.
openaire +2 more sources
The atmospheric circulation of the super Earth GJ 1214b: Dependence on composition and metallicity [PDF]
, 2014 We present three-dimensional atmospheric circulation models of GJ 1214b, a 2.7 Earth-radius, 6.5 Earth-mass super Earth detected by the MEarth survey.
Fortney, Jonathan J. +4 more
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Applied Sciences, 2018 Six fractional polysaccharides were prepared by water extraction and alcohol precipitation under controlled temperature from bletillae rhizoma, a traditional Chinese medicine.
Xiaoyan Long +4 more
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Linear Rheological Response of a Series of Densely Branched Brush Polymers [PDF]
, 2011 We have examined the linear rheological responses of a series of welldefined, dense, regularly branched brush polymers. These narrow molecular weight distribution brush polymers had polynorobornene backbones with degrees of polymerization (DP) of 200 ...
Grubbs, Robert H. +4 more
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Rheological measurement of molecular weight distribution of polymers
e-Polymers, 2013 This paper has described a method to obtain the molecular weight distribution (MWD) of polymeric materials from their rheological data. The method has been developed for linear polymers with log normal molecular weight distribution.
Khak Maryam, Ramazani Ahmad
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Frontiers in Bioengineering and Biotechnology, 2020 Biodegradable and biocompatible polyhydroxyalkanoates (PHAs) are promising alternatives to conventional plastics. Based on the chain length of their monomers they are classified as short chain length (scl-) or medium chain length (mcl-) PHA polymers. The
Moritz Bartels +5 more
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Molecules, 2022 Colloidal silica suspensions are widely used in many fields, including environmental restoration, oil drilling, and food and medical industries. To control the rheological property of suspensions, poly(ethylene oxide) (PEO) polymers are often used. Under
Yi Huang +2 more
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Frontiers in Materials, 2018 The extracellular matrix (ECM) is critical in tumor growth and invasive potential of cancer cells. In glioblastoma tumors, some components of the native brain ECM such as hyaluronic acid (HA) have been suggested as key regulators of processes associated ...
Jee-Wei E. Chen +6 more
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Isolation of leptin hormone from plasma and molecular weight estimation using bio techniques [PDF]
مجلة التربية والعلم, 2009 The research include the isolation of leptin hormone from plasma of female by gel filtration chromatography technique using separating column 1002Cm containing Sephadex G - 75 produced 5 bands where number 5 showed leptin concentration 0.5ng/ml.
Nawal Thnoon Youis +2 more
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Physicochemical and Molecular Properties of Spelt and Wheat Starches Illuminated with UV Light
Applied Sciences, 2023 Scope: Aqueous suspensions of spelt and wheat starch were irradiated with ultraviolet radiation for 5–50 h. The changes in the molecular structure of the starch induced by UV radiation were related to the photodegradation of starch chains and the ...
Ewelina Nowak +3 more
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