Skin-like Transparent Polymer-Hydrogel Hybrid Pressure Sensor with Pyramid Microstructures
Soft biomimetic electronic devices primarily comprise an electronic skin (e-skin) capable of implementing various wearable/implantable applications such as soft human–machine interfaces, epidermal healthcare systems, and neuroprosthetics owing to its high mechanical flexibility, tissue conformabilit...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-09-01
|
| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/13/19/3272 |
| _version_ | 1797515878366969856 |
|---|---|
| author | Kyumin Kang Hyunjin Jung Soojung An Hyoung Won Baac Mikyung Shin Donghee Son |
| author_facet | Kyumin Kang Hyunjin Jung Soojung An Hyoung Won Baac Mikyung Shin Donghee Son |
| author_sort | Kyumin Kang |
| collection | DOAJ |
| description | Soft biomimetic electronic devices primarily comprise an electronic skin (e-skin) capable of implementing various wearable/implantable applications such as soft human–machine interfaces, epidermal healthcare systems, and neuroprosthetics owing to its high mechanical flexibility, tissue conformability, and multifunctionality. The conformal contact of the e-skin with living tissues enables more precise analyses of physiological signals, even in the long term, as compared to rigid electronic devices. In this regard, e-skin can be considered as a promising formfactor for developing highly sensitive and transparent pressure sensors. Specifically, to minimize the modulus mismatch at the biotic–abiotic interface, transparent-conductive hydrogels have been used as electrodes with exceptional pressing durability. However, critical issues such as dehydration and low compatibility with elastomers remain a challenge. In this paper, we propose a skin-like transparent polymer-hydrogel hybrid pressure sensor (HPS) with microstructures based on the polyacrylamide/sodium-alginate hydrogel and p-PVDF-HFP-DBP polymer. The encapsulated HPS achieves conformal contact with skin due to its intrinsically stretchable, highly transparent, widely sensitive, and anti-dehydrative properties. We believe that the HPS is a promising candidate for a robust transparent epidermal stretchable-skin device. |
| first_indexed | 2024-03-10T06:54:28Z |
| format | Article |
| id | doaj.art-d502a49ae3f54afbaf306990aac3277d |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T06:54:28Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-d502a49ae3f54afbaf306990aac3277d2023-11-22T16:38:13ZengMDPI AGPolymers2073-43602021-09-011319327210.3390/polym13193272Skin-like Transparent Polymer-Hydrogel Hybrid Pressure Sensor with Pyramid MicrostructuresKyumin Kang0Hyunjin Jung1Soojung An2Hyoung Won Baac3Mikyung Shin4Donghee Son5Department of Electrical and Computer Engineering, Sungkyunkwan University (SKKU), Suwon 16419, KoreaSchool of Mechanical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, KoreaDepartment of Electrical and Computer Engineering, Sungkyunkwan University (SKKU), Suwon 16419, KoreaDepartment of Electrical and Computer Engineering, Sungkyunkwan University (SKKU), Suwon 16419, KoreaDepartment of Biomedical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, KoreaDepartment of Electrical and Computer Engineering, Sungkyunkwan University (SKKU), Suwon 16419, KoreaSoft biomimetic electronic devices primarily comprise an electronic skin (e-skin) capable of implementing various wearable/implantable applications such as soft human–machine interfaces, epidermal healthcare systems, and neuroprosthetics owing to its high mechanical flexibility, tissue conformability, and multifunctionality. The conformal contact of the e-skin with living tissues enables more precise analyses of physiological signals, even in the long term, as compared to rigid electronic devices. In this regard, e-skin can be considered as a promising formfactor for developing highly sensitive and transparent pressure sensors. Specifically, to minimize the modulus mismatch at the biotic–abiotic interface, transparent-conductive hydrogels have been used as electrodes with exceptional pressing durability. However, critical issues such as dehydration and low compatibility with elastomers remain a challenge. In this paper, we propose a skin-like transparent polymer-hydrogel hybrid pressure sensor (HPS) with microstructures based on the polyacrylamide/sodium-alginate hydrogel and p-PVDF-HFP-DBP polymer. The encapsulated HPS achieves conformal contact with skin due to its intrinsically stretchable, highly transparent, widely sensitive, and anti-dehydrative properties. We believe that the HPS is a promising candidate for a robust transparent epidermal stretchable-skin device.https://www.mdpi.com/2073-4360/13/19/3272e-skinelectronic skinsoft pressure sensorsoft devicetransparentskin-like hybrid sensor |
| spellingShingle | Kyumin Kang Hyunjin Jung Soojung An Hyoung Won Baac Mikyung Shin Donghee Son Skin-like Transparent Polymer-Hydrogel Hybrid Pressure Sensor with Pyramid Microstructures Polymers e-skin electronic skin soft pressure sensor soft device transparent skin-like hybrid sensor |
| title | Skin-like Transparent Polymer-Hydrogel Hybrid Pressure Sensor with Pyramid Microstructures |
| title_full | Skin-like Transparent Polymer-Hydrogel Hybrid Pressure Sensor with Pyramid Microstructures |
| title_fullStr | Skin-like Transparent Polymer-Hydrogel Hybrid Pressure Sensor with Pyramid Microstructures |
| title_full_unstemmed | Skin-like Transparent Polymer-Hydrogel Hybrid Pressure Sensor with Pyramid Microstructures |
| title_short | Skin-like Transparent Polymer-Hydrogel Hybrid Pressure Sensor with Pyramid Microstructures |
| title_sort | skin like transparent polymer hydrogel hybrid pressure sensor with pyramid microstructures |
| topic | e-skin electronic skin soft pressure sensor soft device transparent skin-like hybrid sensor |
| url | https://www.mdpi.com/2073-4360/13/19/3272 |
| work_keys_str_mv | AT kyuminkang skinliketransparentpolymerhydrogelhybridpressuresensorwithpyramidmicrostructures AT hyunjinjung skinliketransparentpolymerhydrogelhybridpressuresensorwithpyramidmicrostructures AT soojungan skinliketransparentpolymerhydrogelhybridpressuresensorwithpyramidmicrostructures AT hyoungwonbaac skinliketransparentpolymerhydrogelhybridpressuresensorwithpyramidmicrostructures AT mikyungshin skinliketransparentpolymerhydrogelhybridpressuresensorwithpyramidmicrostructures AT dongheeson skinliketransparentpolymerhydrogelhybridpressuresensorwithpyramidmicrostructures |