The structure and diffusion behaviour of the neurotransmitter γ-aminobutyric acid (GABA) in neutral aqueous solutions

2017 ◽  
Vol 104 ◽  
pp. 110-117 ◽  
Author(s):  
M.M. Rodrigo ◽  
M.A. Esteso ◽  
M.F. Barros ◽  
L.M.P. Verissimo ◽  
C.M. Romero ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Aminobutyric Acid ◽  
And Diffusion ◽  
Diffusion Behaviour

scholarly journals COMPLEXATION OF POLYETHYLENE-GLYCOL WITH THE SODIUM SALTS OF CITRIC AND SUCCINIC ACIDS IN THE AQUEOUS SOLUTIONS. STUDIES BY DYNAMIC LIGHT SCATTERING AND UV/VIS SPECTROPHOTOMETRY

2015 ◽  
Vol 11 (8) ◽  
pp. 3866-3872
Author(s):  
E.A. Masimov ◽  
Etibar Hummat Ismailov ◽  
S.Y. Odzhaqverdiyeva
Keyword(s):  
Molecular Weight ◽  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Aqueous Solutions ◽  
Polyethylene Glycols ◽  
Hydrodynamic Diameter ◽  
Absorption Bands ◽  
Sodium Salts ◽  
And Diffusion ◽  
Formation Of Complexes

Dynamic light scattering (DLS) method in combination with the UV/VIS spectrophotometry is used to study the interaction of polyethylene- glycols with a molecular weight  6000 ( PEG6000 ) with sodium salts of citric and succinic acids in aqueous solutions. The values of density, viscosity, refractive and diffusion indexes, the values of the hydrodynamic diameter, wavelength electronic absorption bands for PEG6000 aqueous solutions, their mixtures with succinic and citric acids are determined. It was shown that depending on the composition of the solutions the values of hydrodynamic diameter for aqueous solutions containing 1-5 wt.% PEG6000 and their mixtures with succinic and citric acids (~ 1 wt%) ranges from 3.6 to 5.2 nm. It is assumed that the formation of complexes with the sizes  that are within the above range is due to the features of interaction  and the structure of the complexes formed in solution.

A comparative study between the behavior diffusion of α-aminobutyric acid and γ-aminobutyric acid in sodium chloride aqueous solutions

2019 ◽  
Vol 291 ◽  
pp. 111289 ◽  
Author(s):  
M.M. Rodrigo ◽  
M.A. Esteso ◽  
L.M.P. Veríssimo ◽  
C.M. Romero ◽  
M.L. Ramos ◽  
...  
Keyword(s):  
Sodium Chloride ◽  
Comparative Study ◽  
Aqueous Solutions ◽  
Aminobutyric Acid
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