Water-soluble aromatic polyamide as a low-temperature-processable alignment layer: Poly(2,2’-disulfo-4,4’-benzidine isophthalamide) cesium salt

2020 ◽  
Vol 140 ◽  
pp. 105506
Author(s):  
Sang Hee Won ◽  
Hyeong Wook Kim ◽  
Valery Kuzmin ◽  
Bo Sung Kim ◽  
Sung Tae Shin
Keyword(s):  
Low Temperature ◽  
Aromatic Polyamide ◽  
Water Soluble ◽  
Alignment Layer ◽  
Cesium Salt

Sulfonated aromatic polyamide as water-soluble polymeric corrosion inhibitor of copper in HCl

2019 ◽  
Vol 578 ◽  
pp. 123626 ◽  
Author(s):  
Razieh Farahati ◽  
Ali Ghaffarinejad ◽  
Hamidreza (Jafar) Rezania ◽  
S. Morteza Mousavi-Khoshdel ◽  
Hadi Behzadi
Keyword(s):  
Corrosion Inhibitor ◽  
Aromatic Polyamide ◽  
Water Soluble

scholarly journals Cytochrome c″ isolated from Methylophilus methylotrophus. An example of bis-histidine-co-ordinated Fe3+ haem, with near-perpendicular orientation of the ligands

1990 ◽  
Vol 270 (2) ◽  
pp. 413-417 ◽  
Author(s):  
M J Berry ◽  
S J George ◽  
A J Thomson ◽  
H Santos ◽  
D L Turner
Keyword(s):  
Low Temperature ◽  
Cytochrome C ◽  
High Spin ◽  
Magnetic Circular Dichroism ◽  
Electron Paramagnetic Resonance Spectroscopy ◽  
Water Soluble ◽  
Reduced Form ◽  
Resonance Spectroscopy ◽  
Methylophilus Methylotrophus ◽  
Perpendicular Orientation

Cytochrome c″ (Methylophilus methylotrophus) is a soluble protein, Mr 15,000, possessing one haem which is high-spin in the reduced state but switches to a low-spin form on oxidation. Low-temperature electron-paramagnetic-resonance spectroscopy of the oxidized state shows a low-spin signal at gz = 3.65 with a folded line-shape typical of a haem of low rhombicity, and the near-infrared magnetic-circular-dichroism (m.c.d.) spectra reveal an unusually intense (delta epsilon = 400 M-1.cm-1 at 5 T, 4.2 K) charge-transfer band at 1560 nm, establishing that the oxidized haem is co-ordinated by two His residues in a near-perpendicular orientation. This conformation is well established for transmembrane b cytochromes, but this appears to be the first example in a water-soluble cytochrome. The low-temperature m.c.d. spectra of the reduced form of the protein confirms that the haem contains a high-spin Fe2+ ligated by one His residue. The redox-linked spin-state change releases a His group. Since this residue is likely to bind a proton at pH values less than 6.5, this cytochrome may provide a useful model of a molecular mechanism of a redox-linked proton uptake and release process.

Characterization and biodegradation of water-soluble biomarkers and organic carbon extracted from low temperature chars

2013 ◽  
Vol 56 ◽  
pp. 111-119 ◽  
Author(s):  
Matt J. Norwood ◽  
Patrick Louchouarn ◽  
Li-Jung Kuo ◽  
Omar R. Harvey
Keyword(s):  
Low Temperature ◽  
Organic Carbon ◽  
Water Soluble

scholarly journals Optical Properties and Radiation Stability of Magnesium Silicate

2021 ◽  
pp. 132-137
Author(s):  
V. V. Harutyunyan ◽  
A. O. Badalyan
Keyword(s):  
Heat Treatment ◽  
Optical Properties ◽  
Hydrothermal Synthesis ◽  
Low Temperature ◽  
Magnesium Silicate ◽  
Radiation Stability ◽  
Water Soluble ◽  
Soluble Salts ◽  
Nanosized Powder ◽  
X Ray

A microwave (MW) method of hydrothermal synthesis of magnesium silicate is developed. At low temperature (240 0C), nuclei of crystalline phase of магний silicate are obtained. Some optical characteristics of the synthesized product are determined. Based on, X-ray and thermographic studies are revealed that the synthesis of magnesium silicate from water-soluble salts of initial components in microwave ovens promotes the formation of magnesium at lower temperatures. MW synthesis of magnesium silicate ensures obtaining of nanosized powder after heat treatment at 850 0C.

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