AI Article Synopsis
- A new computational model simulates human skin to study how dielectric spectroscopy electrodes can measure the hydration levels in the stratum corneum, the outer layer of skin.
- The model accounts for changes in skin thickness and dielectric properties as hydration levels vary, revealing that different thicknesses can affect measurements.
- Researchers found that while both conductance and capacitance electrodes react to changes in geometric design, conductance electrodes are more sensitive to dimension changes, suggesting a need for optimizing electrode design for better hydration monitoring.
Article Abstract
We present a novel computational model of the human skin designed to investigate dielectric spectroscopy electrodes for stratum corneum hydration monitoring. The multilayer skin model allows for the swelling of the stratum corneum, as well as the variations of the dielectric properties under several hydration levels. According to the results, the stratum corneum thickness variations should not be neglected. For high hydration levels, swelling reduces the skin capacitance in comparison to a fixed stratum corneum thickness model. In addition, different fringing-field electrodes are evaluated in terms of sensitivity to the stratum corneum hydration level. As expected, both conductance and capacitance types of electrodes are influenced by the electrode geometry and dimension. However, the sensitivity of the conductance electrodes is more affected by dimension changes than the capacitance electrode leading to potential design optimization.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8229638 | PMC |
| http://dx.doi.org/10.3390/s21123986 | DOI Listing |
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