Dynamic and electrophoretic light scattering of a water-soluble complex formed between pepsin and polyethylene glycol

1993 ◽  
Vol 26 (24) ◽  
pp. 6688-6690 ◽  
Author(s):  
Jiulin Xia ◽  
Paul L. Dubin ◽  
Etsuo Kokufuta
Keyword(s):  
Polyethylene Glycol ◽  
Light Scattering ◽  
Water Soluble ◽  
Soluble Complex ◽  
Electrophoretic Light Scattering ◽  
Water Soluble Complex

A STUDY OF A WATER-SOLUBLE COMPLEX OF PRODIGIOSIN PRODUCED BY A STRAIN OF SERRATIA MARCESCENS

1962 ◽  
Vol 40 (1) ◽  
pp. 1019-1024 ◽  
Author(s):  
Seiichi Yoshida
Keyword(s):  
Molecular Weight ◽  
Light Scattering ◽  
Serratia Marcescens ◽  
Average Molecular Weight ◽  
Electrophoretic Analysis ◽  
Water Soluble ◽  
Soluble Complex ◽  
Ph Values ◽  
Scattering Measurements ◽  
Water Soluble Complex

A water-soluble pigment excreted from Serratia marcescens has been purified by precipitation with ammonium sulphate, dialysis, and ultracentrifugation at different pH values. The purified pigment showed a single band in the ultracentrifuge and by electrophoretic analysis at several pH values. An average molecular weight of 5 × 106 was calculated from light-scattering measurements. This pigment is composed of carbohydrate and protein combined with prodigiosin, and several properties of the complex are described.

A STUDY OF A WATER-SOLUBLE COMPLEX OF PRODIGIOSIN PRODUCED BY A STRAIN OF SERRATIA MARCESCENS

1962 ◽  
Vol 40 (8) ◽  
pp. 1019-1024 ◽  
Author(s):  
Seiichi Yoshida
Keyword(s):  
Molecular Weight ◽  
Light Scattering ◽  
Serratia Marcescens ◽  
Average Molecular Weight ◽  
Electrophoretic Analysis ◽  
Water Soluble ◽  
Soluble Complex ◽  
Ph Values ◽  
Scattering Measurements ◽  
Water Soluble Complex

A water-soluble pigment excreted from Serratia marcescens has been purified by precipitation with ammonium sulphate, dialysis, and ultracentrifugation at different pH values. The purified pigment showed a single band in the ultracentrifuge and by electrophoretic analysis at several pH values. An average molecular weight of 5 × 106 was calculated from light-scattering measurements. This pigment is composed of carbohydrate and protein combined with prodigiosin, and several properties of the complex are described.

Rietveld refinement of YbCoO3 prepared from aqueous solution-gel precursor

2007 ◽  
Vol 22 (1) ◽  
pp. 35-39 ◽  
Author(s):  
L. Ben Farhat ◽  
R. Ben Hassen ◽  
L. Dammak
Keyword(s):  
Cell Parameter ◽  
Rietveld Method ◽  
Polycrystalline Sample ◽  
Water Soluble ◽  
Complex Method ◽  
X Ray Diffraction ◽  
Soluble Complex ◽  
X Ray ◽  
The Relationship ◽  
Water Soluble Complex

A polycrystalline sample of YbCoO3 was prepared using a water-soluble complex method at relatively low temperatures. Common chelating ligands such as citric acid were employed for the synthesis of complex-based precursors, followed by thermal decomposition of the precursors at high temperatures. X-ray diffraction data were collected and the crystal structure was refined by the Rietveld method. The structure of YbCoO3 can be described as a sesquioxide C-M2O3-like structure with space group Ia-3 and unit-cell parameter a=10.4470 (2). The Yb3+ and the Co3+ cations are found to preferentially occupy the two nonequivalent 8d and 24d sites, respectively. The two independent atoms Yb/Co have octahedral coordination; however, the degrees of distortion of their coordination polyhedron are different. The relationship between the title compound and the orthorhombic Perovskite structure of YbCoO3 reported in the literature is established.

Ruthenium(II) Complexes of Thiosemicarbazones: The First Water-Soluble Complex with pH-Dependent Antiproliferative Activity

2007 ◽  
Vol 2007 (18) ◽  
pp. 2870-2878 ◽  
Author(s):  
Sanja Grguric-Sipka ◽  
Christian R. Kowol ◽  
Seied-Mojtaba Valiahdi ◽  
Rene Eichinger ◽  
Michael A. Jakupec ◽  
...  
Keyword(s):  
Antiproliferative Activity ◽  
Water Soluble ◽  
Soluble Complex ◽  
Ph Dependent ◽  
Water Soluble Complex

scholarly journals Effect of the water-soluble cholesterol-methyl-β-cyclodextrin complex on the development of pulmonary edema with an analysis of the osmotic resistance of erythrocytes in rats

2021 ◽  
pp. 74-79
Author(s):  
N. E. Kobzar ◽  
V. P. Mikhailov ◽  
V. V. Porseva
Keyword(s):  
Sodium Chloride ◽  
Pulmonary Edema ◽  
Chloride Solution ◽  
Sodium Chloride Solution ◽  
Water Soluble ◽  
Osmotic Resistance ◽  
Soluble Complex ◽  
Degree Of Hydration ◽  
Osmotic Resistance Of Erythrocytes ◽  
Water Soluble Complex

Introduction. Methyl-β-cyclodextrin is a potent acceptor of cellular membrane cholesterol and, at the same time, used as a solubilizer, which makes it a potential target for targeted delivery of hydrophobic compounds.Aim. To assess the effect of administration of methyl-β-cyclodextrin containing cholesterol on the degree of lung hydration and osmotic resistance of erythrocytes against the background of pulmonary edema in adult rats caused by the administration of mezaton.Materials and methods. We investigated the degree of hydration of the lungs by the value of the pulmonary coefficient and their dry residue. Osmotic resistance of erythrocytes were assessed by the intensity of their hemolysis in a series of hypotonic sodium chloride solutions in adult male Wistar rats (220±40 g) of the control group (intact, n=10) and two experimental groups with pulmonary edema caused by the administration of mezaton (n=10) and with the subsequent introduction of a water-soluble complex cholesterol-methyl-β-cyclodextrin against the background of the development of pulmonary edema (n=10). We used additional criteria for assessing the osmotic resistance of erythrocytes: minimum resistance – the concentration of sodium chloride solution, at which the first “weak” erythrocytes begin to hemolyze; maximum resistance is the concentration of sodium chloride solution at which all or almost all erythrocytes hemolyzed.Results. The introduction of mezaton led to the development of pronounced hemolysis and hydration of the lungs with the development of their edema and a narrowing of the range of minimum and maximum osmotic resistance of erythrocytes. The introduction of a complex of cholesterol with methyl-β-cyclodextrin after edemogenic exposure led to a decrease in the severity of pulmonary edema, determined by a decrease in the pulmonary coefficient and an increase in the dry residue, and to an increase in the osmotic resistance of erythrocytes with an expansion of the range of their minimum and maximum osmotic resistance.Conclusion. The introduction of a water-soluble complex of cholesterol with methyl-β-cyclodextrin against the background of the development of hemodynamic pulmonary edema significantly reduced the degree of hydration of the lungs, which combined with an increase in the osmotic resistance of erythrocytes.

Sign in / Sign up

Export Citation Format

Share Document