Fan, S., Z. Qian, and V. P. Wallace. "Hydration of
gelatin molecules studied with terahertz time-domain spectroscopy." In Infrared, Millimeter-Wave, and
Terahertz Technologies V, vol. 10826, p. 1082604. International Society for Optics
and Photonics, 2018.
Abstract
Gelatin is an irreversible hydrolyzed form of collagen
having similar amino acid compositeswith its parent collagen. The
hydrogen atoms on the side chains of the long peptide strings can weakly bond
with their surrounding gelatin as well as water molecules in aqueous
environment, forming a cross-linked 3D matrix. Gelatin has been used as a model
for soft tissue phantoms in several medical imaging studies including in
terahertz imaging. In the terahertz regime, the dielectric property of the
gelatin relies largely on its hydration status and the relationship has been
shown to be non-linear. It is therefore essential to study the change of the
dielectric properties with respect to the hydration status so as to accurately
mimic the properties of fresh biological tissues in the terahertz spectrum.
.....
… The heated gelatin solutions were
poured into a liquid holder with a window made of
z-cut quartz as the bottom material. The sample holder was set on the reflection imaging stage of the TeraPulse 4000 system (TeraView Ltd, Cambridge, UK) …
z-cut quartz as the bottom material. The sample holder was set on the reflection imaging stage of the TeraPulse 4000 system (TeraView Ltd, Cambridge, UK) …
For more information about TeraView
visit https://teraview.com/terapulse/
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