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Dynamics of trehalose molecules in confined solutions
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10.1063/1.2753841
/content/aip/journal/jcp/127/6/10.1063/1.2753841
http://aip.metastore.ingenta.com/content/aip/journal/jcp/127/6/10.1063/1.2753841

Figures

Image of FIG. 1.
FIG. 1.

SANS spectra for silica gel samples for different volume percentages of .

Image of FIG. 2.
FIG. 2.

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 .

Image of FIG. 3.
FIG. 3.

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.

Image of FIG. 4.
FIG. 4.

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.

Image of FIG. 5.
FIG. 5.

QENS spectra at for the pure gel AT1 and gels with confined trehalose solutions AT2 and AT3, all at .

Image of FIG. 6.
FIG. 6.

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.

Image of FIG. 7.
FIG. 7.

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.

Tables

Generic image for table
Table I.

Summary table of the samples measured: sugar type, notation, composition, and the measurements carried out.

Generic image for table
Table II.

Parameters fitted to the full width at half maximum of the narrower Lorentzian line for different temperatures and samples.

Generic image for table
Table III.

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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/content/aip/journal/jcp/127/6/10.1063/1.2753841
2007-08-14
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Dynamics of trehalose molecules in confined solutions
http://aip.metastore.ingenta.com/content/aip/journal/jcp/127/6/10.1063/1.2753841
10.1063/1.2753841
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