Ramanathan, Santheraleka and Jusoh, M. and Sabapathy, T. and Yasin, M. N. and Gopinath, Subash C. B. and ARahim, H. and Osman, M. N. and Abdul Wahab, Yasmin (2020) Elastomeric polydimethylsiloxane polymer on conductive interdigitated electrode for analyzing skin hydration dynamics. Applied Physics A, 126 (9). ISSN 0947-8396, DOI https://doi.org/10.1007/s00339-020-03933-4.
Full text not available from this repository.Abstract
With an approach towards generating a wearable skin hydration detecting system, simple, cheap, and flexible skin hydration sensing strategy was demonstrated here using an interdigitated electrode (IDE) coated with polydimethylsiloxane (PDMS) matrix. Aluminium IDE with a 400 mu m gap and 250 mu m electrode sizes were fabricated using a photolithography method. Morphological characterizations were performed using a high power microscope, 3D-profilometer, and scanning electron microscope. The dimensions of electrodes and gaps measured through electron microscopic analysis affirmed the exactness of IDE and the fabrication process. After coated with PDMS polymer, the IDE/PDMS surface was examined under a high power microscope and 3D-profilometer. The optical characterization revealed the polymer was coated on IDE through the color-shade changes and smooth surface observed under an optical microscope and the respective 3D-visualization. IDE/PDMS was also analyzed by an atomic force microscope, revealing the smoothness of the IDE surface. Electrical characterizations were performed using different pH and urea solutions and the sweat to investigate the influence of real-time and artificial sweat on IDE/PDMS. As the device showed appropriate results with real-time sweat and no effect with artificial interferences, it is highly encouraged and recommended for detecting skin hydration and the related illnesses with the point-of-care concept.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Education Malaysia under the fundamental research grant scheme, Government of Malaysia (FRGS/1/2018/TK04/UNIMAP/02/28) |
| Uncontrolled Keywords: | Skin sensor; Optical characterization; Skin hydration; Sweat |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 10 Feb 2023 08:14 |
| Last Modified: | 10 Feb 2023 08:14 |
| URI: | http://eprints.um.edu.my/id/eprint/37473 |
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