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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Nefedova, Irina
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Publications (5/5 displayed)
- 2023Submillimeter-wave cornea phantom sensing over an extended depth of field with an axicon-generated Bessel beamcitations
- 2022Vector spherical harmonic analysis and experimental validation of spherical shells illuminated with broadband, millimeter wave Gaussian beams : applications to corneal sensingcitations
- 2022Characterization of bound and free water in gelatin hydrogels and their contribution to THz frequency permittivity
- 2021Submillimeter-Wave Permittivity Measurements of Bound Water in Collagen Hydrogels via Frequency Domain Spectroscopycitations
- 2017Electrical and optical properties of carbon nanotube and silver nanowire layers for low-THz applicationscitations
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document
Characterization of bound and free water in gelatin hydrogels and their contribution to THz frequency permittivity
Abstract
<p>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.</p>