Solubility of hydrogen sulfide in aqueous diethanolamine solutions at high pressures

1973 ◽  
Vol 18 (1) ◽  
pp. 71-73 ◽  
Author(s):  
Jong Il Lee ◽  
Frederick D. Otto ◽  
Alan E. Mather
Keyword(s):  
Hydrogen Sulfide ◽  
High Pressures

REACTIONS OF HYDROGEN SULFIDE WITH VARIOUS ORGANIC COMPOUNDS AT HIGH PRESSURES

1953 ◽  
Vol 18 (6) ◽  
pp. 748-752 ◽  
Author(s):  
T. L. CAIRNS ◽  
A. W. LARCHAR ◽  
B. C. McKUSICK
Keyword(s):  
Hydrogen Sulfide ◽  
Organic Compounds ◽  
High Pressures

Solubility of hydrogen sulfide in aqueous solutions of N-methyldiethanolamine at high pressures

2015 ◽  
Vol 393 ◽  
pp. 33-39 ◽  
Author(s):  
Negar Sadegh ◽  
Kaj Thomsen ◽  
Even Solbraa ◽  
Eivind Johannessen ◽  
Gunn Iren Rudolfsen ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Aqueous Solutions ◽  
High Pressures

Strong electron–phonon interaction retarding phonon transport in superconducting hydrogen sulfide at high pressures

2018 ◽  
Vol 20 (37) ◽  
pp. 24222-24226 ◽  
Author(s):  
Jia-Yue Yang ◽  
Ming Hu
Keyword(s):  
Hydrogen Sulfide ◽  
High Pressures ◽  
Phonon Transport ◽  
Ultrahigh Pressure ◽  
Phonon Coupling ◽  
Phonon Interaction ◽  
Strong Electron ◽  
Interatomic Distances ◽  
Electron Phonon Interaction ◽  
Electron Phonon Coupling

Ultrahigh pressure greatly shortens interatomic distances and induces strong electron–phonon coupling that significantly reduces the phonon transport of superconducting H3S.

Partial molar volumes of acidic gases in physical solvents and prediction of solubilities at high pressures

1992 ◽  
Vol 70 (1) ◽  
pp. 55-57 ◽  
Author(s):  
Yuming Xu ◽  
Lili Li ◽  
Loren G. Hepler
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Sulfide ◽  
Sulfur Dioxide ◽  
Molar Volume ◽  
Propylene Carbonate ◽  
Infinite Dilution ◽  
High Pressures ◽  
Partial Molar Volumes ◽  
Molar Volumes ◽  
Acidic Gases

Partial molar volumes at infinite dilution for three acidic gases (carbon dioxide, hydrogen sulfide, and sulfur dioxide) in four physical solvents (propylene carbonate, methyl cyanoacetate, N-formyl morpholine, and Selexol) have been obtained using our new dilatometer. These partial molar volumes, in combination with the Henry's law constants obtained previously, have been used in the Krichevsky–Kasarnovsky equation for predicting the solubilities of acidic gases in physical solvents at high pressures. Keywords: partial molar volume, solubility, physical solvents.

Endogenous hydrogen sulfide sulfhydrates IKKβ at cysteine 179 to control pulmonary artery endothelial cell inflammation

2019 ◽  
Vol 133 (20) ◽  
pp. 2045-2059 ◽  
Author(s):  
Da Zhang ◽  
Xiuli Wang ◽  
Siyao Chen ◽  
Selena Chen ◽  
Wen Yu ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Endothelial Cell ◽  
Pulmonary Artery ◽  
Cell Model ◽  
Site Directed Mutagenesis ◽  
Critical Event ◽  
Hypertensive Rats ◽  
Pulmonary Artery Endothelial Cell

Abstract Background: Pulmonary artery endothelial cell (PAEC) inflammation is a critical event in the development of pulmonary arterial hypertension (PAH). However, the pathogenesis of PAEC inflammation remains unclear. Methods: Purified recombinant human inhibitor of κB kinase subunit β (IKKβ) protein, human PAECs and monocrotaline-induced pulmonary hypertensive rats were employed in the study. Site-directed mutagenesis, gene knockdown or overexpression were conducted to manipulate the expression or activity of a target protein. Results: We showed that hydrogen sulfide (H2S) inhibited IKKβ activation in the cell model of human PAEC inflammation induced by monocrotaline pyrrole-stimulation or knockdown of cystathionine γ-lyase (CSE), an H2S generating enzyme. Mechanistically, H2S was proved to inhibit IKKβ activity directly via sulfhydrating IKKβ at cysteinyl residue 179 (C179) in purified recombinant IKKβ protein in vitro, whereas thiol reductant dithiothreitol (DTT) reversed H2S-induced IKKβ inactivation. Furthermore, to demonstrate the significance of IKKβ sulfhydration by H2S in the development of PAEC inflammation, we mutated C179 to serine (C179S) in IKKβ. In purified IKKβ protein, C179S mutation of IKKβ abolished H2S-induced IKKβ sulfhydration and the subsequent IKKβ inactivation. In human PAECs, C179S mutation of IKKβ blocked H2S-inhibited IKKβ activation and PAEC inflammatory response. In pulmonary hypertensive rats, C179S mutation of IKKβ abolished the inhibitory effect of H2S on IKKβ activation and pulmonary vascular inflammation and remodeling. Conclusion: Collectively, our in vivo and in vitro findings demonstrated, for the first time, that endogenous H2S directly inactivated IKKβ via sulfhydrating IKKβ at Cys179 to inhibit nuclear factor-κB (NF-κB) pathway activation and thereby control PAEC inflammation in PAH.

A first-principles Hartree-Fock description of MnO at high pressures

1998 ◽  
Vol 77 (4) ◽  
pp. 1063-1075
Author(s):  
W. C. Mackrodt, E.-A. Williamson, D. W
Keyword(s):  
First Principles ◽  
High Pressures ◽  
Hartree Fock
Sign in / Sign up

Export Citation Format

Share Document