نتایج جستجو برای: hydrophobic salts

تعداد نتایج: 60270  

Journal: :Chemphyschem : a European journal of chemical physics and physical chemistry 2007
Lukasz Cwiklik Gunther Andersson Liem X Dang Pavel Jungwirth

We present a short review of recent computational and experimental studies on surfaces of solutions of inorganic salts in polar nonaqueous solvents. These investigations complement our knowledge of aqueous interfaces and show that liquids such as formamide, liquid ammonia, and ethylene glycol can also surface-segregate large polarizable anions like iodide, albeit less efficiently than water. Fo...

Journal: :Journal of the American Chemical Society 2009
Justin M Chalker Charlotte S C Wood Benjamin G Davis

A phosphine-free palladium catalyst for aqueous Suzuki-Miyaura cross-coupling is presented. The catalyst is active enough to mediate hindered, ortho-substituted biaryl couplings but mild enough for use on peptides and proteins. The Suzuki-Miyaura couplings on protein substrates are the first to proceed in useful conversions. Notably, hydrophobic aryl and vinyl groups can be transferred to the p...

Journal: :Applied and environmental microbiology 1997
K L Ho A L Pometto P N Hinz J S Dickson A Demirci

Plastic composite supports containing 50% agricultural products (oat hulls, soybean hulls, yeast extract, soybean flour, dried bovine erythrocytes, bovine albumin, and/or mineral salts) and 50% (wt/wt) polypropylene were produced by high-temperature twin-screw extrusion. The research employed two half sets of a five-factorial fractional design (2(5 - 1)) to evaluate the effects of different agr...

Journal: :Physical chemistry chemical physics : PCCP 2011
Pankaj Attri Pannuru Venkatesu Anil Kumar

In view the of wide scope of structural information of biomolecules in biocompatible ionic liquids (ILs) in various applications including chemical and biochemical, it is essential to study the productive preferential interactions between biological macromolecules and biocompatible ILs. We have therefore explored the stability and activity of α-chymotrypsin (CT) in the presence of five ILs from...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2006
Justin M Notestein Alexander Katz Enrique Iglesia

Calixarenes grafted on silica are energetically uniform hosts that bind aromatic guests with 1:1 stoichiometry, as shown by binding energies that depend upon the calixarene upper rim composition but not on their grafted surface density (0.02-0.23 nm(-2)). These materials are unique in maintaining a hydrophilic silica surface, as probed by H2O physisorption measurements, while possessing a high ...

Journal: :Journal of lipid research 2001
A Moschetta G P vanBerge-Henegouwen P Portincasa G Palasciano K J van Erpecum

Cholesterol in human bile is solubilized in micelles by (relatively hydrophobic) bile salts and phosphatidylcholine (unsaturated acyl chains at sn-2 position). Hydrophilic tauroursodeoxycholate, dipalmitoyl phosphatidylcholine, and sphingomyelin all decrease cholesterol crystal-containing zones in the equilibrium ternary phase diagram (van Erpecum, K. J., and M. C. Carey. 1997. Biochim. Biophys...

Journal: :Lc Gc North America 2022

Porous layer open tubular (PLOT) columns are traditionally built with particles that adhered to the tubing walls. These have unique selectivity and provide a great alternative when gaseous samples need be separated, but these also been used separate higher boiling point analytes. There many different commercially available stationary phases of PLOT columns, including alumina-based molecular sie...

Journal: :International Journal of Coal Science & Technology 2021

Abstract Coking coal dust is extremely hydrophobic; therefore, combination with droplets in the air difficult and suppression challenging. Here, a suppressant spray for coking was studied order to improve of dust. Based on monomer optimization compounding analysis, two surfactant monomers, fatty alcohol ether sodium sulfate (AES) dodecyl benzene sulfonate (SDBS) were selected as components supp...

Journal: :Journal of Molecular Structure 2022

• The salts with protonated bipyridines and [W(CN) 6 (bpy)] 2- were synthesized. layered structure of compared to their analogues alkali metal cations. dimethyl substituted bipyridine as a cation shows 3D dimensionality. cation-anion distance was discussed in relation position the UV-Vis bands. ion-pair-charge-transfer transitions these found 8 ] 4− analogues. series 2− 2,2′-bpy (1), 4,4′-bpy (...

Journal: :European Polymer Journal 2022

This investigation aims to obtain a thermosensitive platform useful for specific nanomedicine applications through the addition of suitable salts. An aqueous mixture consisting copolymer Pluronic F127 and sodium carboxymethyl-cellulose, in ratio 20/4 by weight, presence different concentrations Na2SO4, NaCl, NaSCN, was investigated using visual inversion tube approach estimate phase map, then c...

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