Portable Skin Analyzers with Simultaneous Measurements of Transepidermal Water Loss, Skin Conductance and Skin Hardness
Simultaneous measurement of skin physiological and physical properties are important for the diagnosis of skin diseases and monitoring of human performance, since it provides more comprehensive understanding on the skin conditions. Current skin analysis devices, however, require each of probes and u...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-09-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/19/18/3857 |
| _version_ | 1818035177921708032 |
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| author | Daniel (Jai Kyoung) Sim Sung Mok Kim Steve S. Kim Il Doh |
| author_facet | Daniel (Jai Kyoung) Sim Sung Mok Kim Steve S. Kim Il Doh |
| author_sort | Daniel (Jai Kyoung) Sim |
| collection | DOAJ |
| description | Simultaneous measurement of skin physiological and physical properties are important for the diagnosis of skin diseases and monitoring of human performance, since it provides more comprehensive understanding on the skin conditions. Current skin analysis devices, however, require each of probes and unique protocols for the measurement of individual skin properties, resulting in inconvenience and increase of measurement uncertainty. This paper presents a pen-type skin analyzing device capable tomeasure three key skin properties at the same time: transepidermal water loss (TEWL), skin conductance, and skin hardness. It uses a single truncated hollow cone (THC) probe integrated with a humidity sensor, paired electrodes, and a load cell for the multimodal assessment of the skin properties. The present device measured TEWL with a sensitivity of 0.0068 (%/s)/(g/m<sup>2</sup>/h) and a linearity of 99.63%, conductance with a sensitivity of 1.02 µS/µS and a linearity of 99.36%, and hardness with a sensitivity of 0.98 Shore 00/Shore 00 and a linearity of 99.85%, within the appropriate ranges for the human skin. The present pen-type device has a high potential for the skin health diagnosis as well as the human performance monitoring applications. |
| first_indexed | 2024-12-10T06:50:55Z |
| format | Article |
| id | doaj.art-082713c85eba4cf8affa996c1f1e10cb |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-12-10T06:50:55Z |
| publishDate | 2019-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-082713c85eba4cf8affa996c1f1e10cb2022-12-22T01:58:33ZengMDPI AGSensors1424-82202019-09-011918385710.3390/s19183857s19183857Portable Skin Analyzers with Simultaneous Measurements of Transepidermal Water Loss, Skin Conductance and Skin HardnessDaniel (Jai Kyoung) Sim0Sung Mok Kim1Steve S. Kim2Il Doh3Center for Medical Convergence Metrology, Korea Research Institute of Standards and Science (KRISS), Daejeon 34113, KoreaCenter for Medical Convergence Metrology, Korea Research Institute of Standards and Science (KRISS), Daejeon 34113, Korea711th Human Performance Wing, Air Force Research Laboratory (AFRL), Wright-Patterson Air Force Base, Dayton, OH 45433, USACenter for Medical Convergence Metrology, Korea Research Institute of Standards and Science (KRISS), Daejeon 34113, KoreaSimultaneous measurement of skin physiological and physical properties are important for the diagnosis of skin diseases and monitoring of human performance, since it provides more comprehensive understanding on the skin conditions. Current skin analysis devices, however, require each of probes and unique protocols for the measurement of individual skin properties, resulting in inconvenience and increase of measurement uncertainty. This paper presents a pen-type skin analyzing device capable tomeasure three key skin properties at the same time: transepidermal water loss (TEWL), skin conductance, and skin hardness. It uses a single truncated hollow cone (THC) probe integrated with a humidity sensor, paired electrodes, and a load cell for the multimodal assessment of the skin properties. The present device measured TEWL with a sensitivity of 0.0068 (%/s)/(g/m<sup>2</sup>/h) and a linearity of 99.63%, conductance with a sensitivity of 1.02 µS/µS and a linearity of 99.36%, and hardness with a sensitivity of 0.98 Shore 00/Shore 00 and a linearity of 99.85%, within the appropriate ranges for the human skin. The present pen-type device has a high potential for the skin health diagnosis as well as the human performance monitoring applications.https://www.mdpi.com/1424-8220/19/18/3857pen-type devicemultimodal skin analysistransepidermal water loss (TEWL)skin conductanceskin hardness |
| spellingShingle | Daniel (Jai Kyoung) Sim Sung Mok Kim Steve S. Kim Il Doh Portable Skin Analyzers with Simultaneous Measurements of Transepidermal Water Loss, Skin Conductance and Skin Hardness Sensors pen-type device multimodal skin analysis transepidermal water loss (TEWL) skin conductance skin hardness |
| title | Portable Skin Analyzers with Simultaneous Measurements of Transepidermal Water Loss, Skin Conductance and Skin Hardness |
| title_full | Portable Skin Analyzers with Simultaneous Measurements of Transepidermal Water Loss, Skin Conductance and Skin Hardness |
| title_fullStr | Portable Skin Analyzers with Simultaneous Measurements of Transepidermal Water Loss, Skin Conductance and Skin Hardness |
| title_full_unstemmed | Portable Skin Analyzers with Simultaneous Measurements of Transepidermal Water Loss, Skin Conductance and Skin Hardness |
| title_short | Portable Skin Analyzers with Simultaneous Measurements of Transepidermal Water Loss, Skin Conductance and Skin Hardness |
| title_sort | portable skin analyzers with simultaneous measurements of transepidermal water loss skin conductance and skin hardness |
| topic | pen-type device multimodal skin analysis transepidermal water loss (TEWL) skin conductance skin hardness |
| url | https://www.mdpi.com/1424-8220/19/18/3857 |
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