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

S. Magazù, F. Migliardo, B. G. Vertessy, M. T. Caccamo

Research output: Contribution to journalArticle

36 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)56-61
Number of pages6
JournalChemical Physics
Volume424
DOIs
Publication statusPublished - Jun 13 2013

Keywords

  • Bioprotectant
  • Disaccharides
  • Neutron scattering
  • Wavelet analysis

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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