Investigations of homologous disaccharides by elastic incoherent neutron scattering and wavelet multiresolution analysis

Magazu, S. and Migliardo, F. and Vértessy G., Beáta (2013) Investigations of homologous disaccharides by elastic incoherent neutron scattering and wavelet multiresolution analysis. CHEMICAL PHYSICS, 424. pp. 56-61. ISSN 0301-0104

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Abstract

In the present paper the results of a wavevector and thermal analysis of Elastic Incoherent Neutron Scattering (EINS) data collected on water mixtures of three homologous disaccharides through a wavelet approach are reported. The wavelet analysis allows to compare both the spatial properties of the three systems in the wavevector range of Q = 0.27 Å-1÷ 4.27 Å-1. It emerges that, differently from previous analyses, for trehalose the scalograms are constantly lower and sharper in respect to maltose and sucrose, giving rise to a global spectral density along the wavevector range markedly less extended. As far as the thermal analysis is concerned, the global scattered intensity profiles suggest a higher thermal restrain of trehalose in respect to the other two homologous disaccharides. © 2013 Elsevier B.V. All rights reserved.

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