02047nas a2200193   4500008004100000022001400041245010300055210006900158260007100227300001400298490000800312520131400320100001801634700002201652700001801674700001601692700001501708856013001723       2010                        eng d  a1520-610600aMeasurements and molecular interactions for N,N-dimethylformamide with ionic liquid mixed solvents0 aMeasurements and molecular interactions for NNdimethylformamide   a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcMAY  a6126-61330 v1143 a<p>To understand the molecular interactions between N,N-dimethylformamide (DMF) with two families of ionic liquids (ILs), we have measured thermophysical properties such as densities (rho) and ultrasonic sound velocities (a) over the whole composition range at 25 degrees C under atmospheric pressure. The excess molar volume (V(E)) and the deviation in isentropic compressibilities (Delta K(s)) were predicted using these properties as a function of the concentration of IL. These results are fitted to the Redlich-Kister polynomials. The materials investigated in the present study included two families of ILs such as ammonium salts and imidazolium salts. Diethylammonium acetate ([Et(2)NH][CH(3)COO], DEAA), triethylammonium actetate ([Et(3)NH][CH(3)COO], TEAA), triethylammonium dihydogen phosphate ([Et(3)NH][H(2)PO(4)], TEAP), and triethylammonium sulfate ([Et(3)NH][HSO(4)], TEAS) are ammonium salts and l-benzy1-3-methylimidazolium chloride (Bmiml[Cl]) belongs to the imidazolium family. The intermolecular interactions and structural effects were analyzed on the basis of the measured and the derived properties. A qualitative analysis of the results is discussed in terms of the ion dipole, ion-pair interactions, and hydrogen bonding between ILs and DMF molecules and their structural factors.</p>1 aAttri, Pankaj1 aReddy, Madhusudan1 aVenkatesu, P.1 aKumar, Anil1 aHofman, T.  uhttps://library.ncl.res.in/content/measurements-and-molecular-interactions-nn-dimethylformamide-ionic-liquid-mixed-solvents-001057nas a2200169   4500008004100000022001400041245009800055210006900153260011000222300001400332490000700346520035600353100001800709700001800727700001600745856012600761       2012                        eng d  a1477-052000aWater and a protic ionic liquid acted as refolding additives for chemically denatured enzymes0 aWater and a protic ionic liquid acted as refolding additives for  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcJUN  a7475-74780 v103 a<p>In this communication, we present the ability of water and a protic ionic liquid, triethyl ammonium phosphate (TEAP) to act as refolding additives for the urea-induced chemical denaturated state of the two enzymes, alpha-chymotrypsin and succinylated Con A. We show that the enzymatic activity is regained and in certain circumstances enhanced.</p>1 aAttri, Pankaj1 aVenkatesu, P.1 aKumar, Anil  uhttps://library.ncl.res.in/content/water-and-protic-ionic-liquid-acted-refolding-additives-chemically-denatured-enzymes-0