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Effect of 3D microstructure of dermal papillae on SED concentration at a mechanoreceptor location
The feeling of touch is an essential human sensation. Four types of mechanoreceptors (i.e., FA-I, SA-I, FA-II, and SA-II) in human skin signalize physical properties, such as shape, size, and texture, of an object that is touched and transmit the signal to the brain. Previous studies attempted to in...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5722322/ https://www.ncbi.nlm.nih.gov/pubmed/29220415 http://dx.doi.org/10.1371/journal.pone.0189293 |
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author | Pham, Trung Quang Hoshi, Takayuki Tanaka, Yoshihiro Sano, Akihito |
author_facet | Pham, Trung Quang Hoshi, Takayuki Tanaka, Yoshihiro Sano, Akihito |
author_sort | Pham, Trung Quang |
collection | PubMed |
description | The feeling of touch is an essential human sensation. Four types of mechanoreceptors (i.e., FA-I, SA-I, FA-II, and SA-II) in human skin signalize physical properties, such as shape, size, and texture, of an object that is touched and transmit the signal to the brain. Previous studies attempted to investigate the mechanical properties of skin microstructure and their effect on mechanoreceptors by using finite element modeling. However, very few studies have focused on the three-dimensional microstructure of dermal papillae, and this is related to that of FA-I receptors. A gap exists between conventional 2D models of dermal papillae and the natural configuration, which corresponds to a complex and uneven structure with depth. In this study, the three-dimensional microstructure of dermal papillae is modeled, and the differences between two-dimensional and three-dimensional aspects of dermal papillae on the strain energy density at receptor positions are examined. The three-dimensional microstructure has a focalizing effect and a localizing effect. Results also reveal the potential usefulness of these effects for tactile sensor design, and this may improve edge discrimination. |
format | Online Article Text |
id | pubmed-5722322 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-57223222017-12-15 Effect of 3D microstructure of dermal papillae on SED concentration at a mechanoreceptor location Pham, Trung Quang Hoshi, Takayuki Tanaka, Yoshihiro Sano, Akihito PLoS One Research Article The feeling of touch is an essential human sensation. Four types of mechanoreceptors (i.e., FA-I, SA-I, FA-II, and SA-II) in human skin signalize physical properties, such as shape, size, and texture, of an object that is touched and transmit the signal to the brain. Previous studies attempted to investigate the mechanical properties of skin microstructure and their effect on mechanoreceptors by using finite element modeling. However, very few studies have focused on the three-dimensional microstructure of dermal papillae, and this is related to that of FA-I receptors. A gap exists between conventional 2D models of dermal papillae and the natural configuration, which corresponds to a complex and uneven structure with depth. In this study, the three-dimensional microstructure of dermal papillae is modeled, and the differences between two-dimensional and three-dimensional aspects of dermal papillae on the strain energy density at receptor positions are examined. The three-dimensional microstructure has a focalizing effect and a localizing effect. Results also reveal the potential usefulness of these effects for tactile sensor design, and this may improve edge discrimination. Public Library of Science 2017-12-08 /pmc/articles/PMC5722322/ /pubmed/29220415 http://dx.doi.org/10.1371/journal.pone.0189293 Text en © 2017 Pham et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Pham, Trung Quang Hoshi, Takayuki Tanaka, Yoshihiro Sano, Akihito Effect of 3D microstructure of dermal papillae on SED concentration at a mechanoreceptor location |
title | Effect of 3D microstructure of dermal papillae on SED concentration at a mechanoreceptor location |
title_full | Effect of 3D microstructure of dermal papillae on SED concentration at a mechanoreceptor location |
title_fullStr | Effect of 3D microstructure of dermal papillae on SED concentration at a mechanoreceptor location |
title_full_unstemmed | Effect of 3D microstructure of dermal papillae on SED concentration at a mechanoreceptor location |
title_short | Effect of 3D microstructure of dermal papillae on SED concentration at a mechanoreceptor location |
title_sort | effect of 3d microstructure of dermal papillae on sed concentration at a mechanoreceptor location |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5722322/ https://www.ncbi.nlm.nih.gov/pubmed/29220415 http://dx.doi.org/10.1371/journal.pone.0189293 |
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