Dynamics of post-occlusion water diffusion in stratum corneum
(2022) In Scientific Reports 12(1).- Abstract
Diffusion of water through membranes presents a considerable challenge, as the diffusivity often depends on the local concentration of water. One particular example with strong biological relevance is the stratum corneum (SC) as the primary permeability barrier for the skin. A simple alternative for the constant diffusivity model is provided by the Fujita’s two-parameter rational approximation, which captures the experimentally observed fact that the SC diffusion constant for water increases with increasing the water concentration. Based on Fick’s law of diffusion, a one-dimensional concentration-dependent diffusion model is developed and applied for the analysis of both the steady-state transepidermal water loss (TEWL) and the... (More)
Diffusion of water through membranes presents a considerable challenge, as the diffusivity often depends on the local concentration of water. One particular example with strong biological relevance is the stratum corneum (SC) as the primary permeability barrier for the skin. A simple alternative for the constant diffusivity model is provided by the Fujita’s two-parameter rational approximation, which captures the experimentally observed fact that the SC diffusion constant for water increases with increasing the water concentration. Based on Fick’s law of diffusion, a one-dimensional concentration-dependent diffusion model is developed and applied for the analysis of both the steady-state transepidermal water loss (TEWL) and the non-steady-state so-called skin surface water loss (SSWL) occurred after removal of an occlusion patch from the SC surface. It is shown that some of the age-related changes in the SSWL can be qualitatively explained by the variation of the dimensionless Fujita concentration-dependence parameter.
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- author
- Argatov, Ivan ; Roosen-Runge, Felix LU and Kocherbitov, Vitaly LU
- publishing date
- 2022-12
- type
- Contribution to journal
- publication status
- published
- in
- Scientific Reports
- volume
- 12
- issue
- 1
- article number
- 17957
- publisher
- Nature Publishing Group
- external identifiers
-
- pmid:36289240
- scopus:85140630537
- ISSN
- 2045-2322
- DOI
- 10.1038/s41598-022-22529-x
- language
- English
- LU publication?
- no
- id
- eda48c91-7b59-42ec-899d-604d09d7b25b
- date added to LUP
- 2023-08-14 10:21:44
- date last changed
- 2024-04-05 22:07:27
@article{eda48c91-7b59-42ec-899d-604d09d7b25b,
abstract = {{<p>Diffusion of water through membranes presents a considerable challenge, as the diffusivity often depends on the local concentration of water. One particular example with strong biological relevance is the stratum corneum (SC) as the primary permeability barrier for the skin. A simple alternative for the constant diffusivity model is provided by the Fujita’s two-parameter rational approximation, which captures the experimentally observed fact that the SC diffusion constant for water increases with increasing the water concentration. Based on Fick’s law of diffusion, a one-dimensional concentration-dependent diffusion model is developed and applied for the analysis of both the steady-state transepidermal water loss (TEWL) and the non-steady-state so-called skin surface water loss (SSWL) occurred after removal of an occlusion patch from the SC surface. It is shown that some of the age-related changes in the SSWL can be qualitatively explained by the variation of the dimensionless Fujita concentration-dependence parameter.</p>}},
author = {{Argatov, Ivan and Roosen-Runge, Felix and Kocherbitov, Vitaly}},
issn = {{2045-2322}},
language = {{eng}},
number = {{1}},
publisher = {{Nature Publishing Group}},
series = {{Scientific Reports}},
title = {{Dynamics of post-occlusion water diffusion in stratum corneum}},
url = {{http://dx.doi.org/10.1038/s41598-022-22529-x}},
doi = {{10.1038/s41598-022-22529-x}},
volume = {{12}},
year = {{2022}},
}