Characterization of bound and free water in gelatin hydrogels and their contribution to THz frequency permittivity

Research output: Contribution to conferenceAbstractScientificpeer-review

Abstract

We present reflective THz spectroscopic measurements of gelatin hydrogels with different gelatin bases combined with differential scanning calorimetry to quantify the bound water mass fraction of each sample. Samples were synthesized as either planar, optically thick slabs, or thin films lying atop optically thick water volumes. The analysis shows that the THz permittivity of water bound to gelatin molecules and the total bound water mass fraction vary significantly depending on the gelatin base used, the total water mass, and environmental conditions. These results support thorough characterization bound water in gelatin hydrogel phantoms prior to their us as a calibration target.

Original languageEnglish
Number of pages1
DOIs
Publication statusPublished - 2022
MoE publication typeNot Eligible
EventInternational Conference on Infrared, Millimeter, and Terahertz Waves - Delft, Netherlands
Duration: 28 Aug 20222 Sep 2022
Conference number: 47

Conference

ConferenceInternational Conference on Infrared, Millimeter, and Terahertz Waves
Abbreviated titleIRMMW-THz
Country/TerritoryNetherlands
CityDelft
Period28/08/202202/09/2022

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