Multicomponent Diffusion in Systems Containing Molecules of Different Size. 2. Mutual Diffusion in the Ternary System Pentaethylene Glycol−Triethylene Glycol−Water

2000 ◽  
Vol 104 (33) ◽  
pp. 8068-8074 ◽  
Author(s):  
A. Vergara ◽  
L. Paduano ◽  
V. Vitagliano ◽  
R. Sartorio
Keyword(s):  
Ternary System ◽  
Triethylene Glycol ◽  
Multicomponent Diffusion ◽  
Mutual Diffusion ◽  
Pentaethylene Glycol

Multicomponent Diffusion in Crowded Solutions. 1. Mutual Diffusion in the Ternary System Poly(ethylene glycol) 400−NaCl−Water

2001 ◽  
Vol 34 (4) ◽  
pp. 991-1000 ◽  
Author(s):  
Alessandro Vergara ◽  
Luigi Paduano ◽  
Vincenzo Vitagliano ◽  
Roberto Sartorio
Keyword(s):  
Ternary System ◽  
Ethylene Glycol ◽  
Multicomponent Diffusion ◽  
Mutual Diffusion ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

scholarly journals Multicomponent Diffusion in Crowded Solutions. 2. Mutual Diffusion in the Ternary System Tetra(ethylene glycol)−NaCl−Water

2004 ◽  
Vol 108 (8) ◽  
pp. 2764-2772 ◽  
Author(s):  
Alessandro Vergara ◽  
Onofrio Annunziata ◽  
Luigi Paduano ◽  
Donald G. Miller ◽  
John G. Albright ◽  
...  
Keyword(s):  
Ternary System ◽  
Ethylene Glycol ◽  
Multicomponent Diffusion ◽  
Mutual Diffusion

Mutual Diffusion Measurements in a Ternary System:  Ionic Surfactant−Nonionic Surfactant−Water at 25 °C

Langmuir ◽  
1998 ◽  
Vol 14 (21) ◽  
pp. 5994-5998 ◽  
Author(s):  
M. Castaldi ◽  
L. Costantino ◽  
O. Ortona ◽  
L. Paduano ◽  
V. Vitagliano
Keyword(s):  
Ternary System ◽  
Nonionic Surfactant ◽  
Mutual Diffusion ◽  
Ionic Surfactant

scholarly journals Structures of exoglucanase from Clostridium cellulovorans: cellotetraose binding and cleavage

2015 ◽  
Vol 71 (10) ◽  
pp. 1264-1272 ◽  
Author(s):  
Li-Chu Tsai ◽  
Imamaddin Amiraslanov ◽  
Hung-Ren Chen ◽  
Yun-Wen Chen ◽  
Hsiao-Lin Lee ◽  
...  
Keyword(s):  
Active Site ◽  
Glycosyl Hydrolase ◽  
Complex Structure ◽  
Triethylene Glycol ◽  
Major Product ◽  
Proton Donor ◽  
Clostridium Cellulovorans ◽  
Active Site Cleft ◽  
Pentaethylene Glycol ◽  
Complex Crystal

Exoglucanase/cellobiohydrolase (EC 3.2.1.176) hydrolyzes a β-1,4-glycosidic bond from the reducing end of cellulose and releases cellobiose as the major product. Three complex crystal structures of the glycosyl hydrolase 48 (GH48) cellobiohydrolase S (ExgS) from Clostridium cellulovorans with cellobiose, cellotetraose and triethylene glycol molecules were solved. The product cellobiose occupies subsites +1 and +2 in the open active-site cleft of the enzyme–cellotetraose complex structure, indicating an enzymatic hydrolysis function. Moreover, three triethylene glycol molecules and one pentaethylene glycol molecule are located at active-site subsites −2 to −6 in the structure of the ExgS–triethylene glycol complex shown here. Modelling of glucose into subsite −1 in the active site of the ExgS–cellobiose structure revealed that Glu50 acts as a proton donor and Asp222 plays a nucleophilic role.

Ternary mutual diffusion coefficients of MgCl2 + MgSO4 + H2O and Na2SO4 + MgSO4 + H2O from Taylor dispersion profiles

1991 ◽  
Vol 69 (10) ◽  
pp. 1548-1553 ◽  
Author(s):  
Zhipeng Deng ◽  
Derek G. Leaist
Keyword(s):  
Diffusion Coefficients ◽  
Multicomponent Diffusion ◽  
Taylor Dispersion ◽  
Mutual Diffusion ◽  
Salt Solutions ◽  
Mixed Salt ◽  
Ternary Diffusion ◽  
Peak Broadening ◽  
Ternary Diffusion Coefficients ◽  
Mixed Salt Solutions

The Taylor dispersion (peak-broadening) technique is used to measure the ternary mutual diffusion coefficients of the mixed salt solutions MgCl2 + MgSO4 + H2O and Na2SO4 + MgSO4 + H2O at 25 °C. The dispersion of the solutes is followed by differential refractometry. A simple least-squares procedure is developed to calculate the ternary diffusion coefficients from the refractive index profiles. The coefficients are measured at 0.04, 0.20, or 0.40 mol dm−3 total salt for the molar salt ratios 1:3, 1:1, or 3:1. The measured diffusion coefficients are compared with the limiting values for the completely dissociated salts. Key words: mixed salt solutions, multicomponent diffusion, Taylor dispersion, ternary diffusion coefficients.

Mutual diffusion with equal eigenvalues in solutions of strongly associated surfactants. A new kind of multicomponent diffusion

2010 ◽  
Vol 156 (1) ◽  
pp. 95-102 ◽  
Author(s):  
Elzbietha Wygnal ◽  
Jennifer A. MacNeil ◽  
Justine Bowles ◽  
Derek G. Leaist
Keyword(s):  
Multicomponent Diffusion ◽  
Mutual Diffusion
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