SANS spectra for silica gel samples for different volume percentages of .
Square root of the intensity at as a function of volume fraction of . The contrast matching point of the silica is determined to be , corresponding to a scattering length density .
SANS spectra for silica gels containing of glucose (A3). The three samples gel-sugar (circles), gel-silica (diamonds), and gel-test (triangles) represent the scattering from the different components of the silica gel A3. The line is a guide for the eye.
SANS spectra for gels containing of glucose (A3) at different gelation times and for a gel containing of trehalose (AT3). The and lines are a guide for the eye.
QENS spectra at for the pure gel AT1 and gels with confined trehalose solutions AT2 and AT3, all at .
Full width at half maximum of the narrower Lorentzian fitted to the QENS spectra for the confined trehalose at . The lines represent least-squares fits described in the text.
Values of the diffusion constant for confined glucose (Ref. 11) (▾) and confined trehalose at in solutions from present work (●) and experimental papers in the literature [◻: Ekdawi et al. (Ref. 10), 엯: Branca et al. (Ref. 9), ◇: Köper et al. (Ref. 8)]. The lines represent a guide for the eye except for the values of Ekdawi et al., where a least-squares fit has been made.
Summary table of the samples measured: sugar type, notation, composition, and the measurements carried out.
Parameters fitted to the full width at half maximum of the narrower Lorentzian line for different temperatures and samples.
Physical constants calculated from the fits to the full width at half maximum of the narrower Lorentzian as a function of is the translational diffusion constant and the jump distance.
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