Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김성환 | - |
dc.date.accessioned | 2022-10-07T01:09:00Z | - |
dc.date.available | 2022-10-07T01:09:00Z | - |
dc.date.issued | 2020-08 | - |
dc.identifier.citation | NANO ENERGY, v. 77, article no. 105242 | en_US |
dc.identifier.issn | 2211-2855; 2211-3282 | en_US |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S221128552030820X?via%3Dihub | en_US |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/175095 | - |
dc.description.abstract | Engineered silk protein hydrogel that resembles skin tissue is a promising material for artificial electronic skin; it can be interfaced with real biological tissues seamlessly and used as an artificial tissue in soft robotics. Herein, we report a soft, biocompatible, and skin-adhesive silk hydrogel incorporating ZnO nanorods (ZnONRs) for a tribo- and piezo-electric energy-generating skin (EG-skin) that can harvest biomechanical energy and sense biomechanical motions. Incorporation of ZnONRs mediates an eight-fold enhancement of piezoelectricity compared to pristine silk hydrogel. An additional two-fold increase in the electrical response is possible when it is encapsulated in silk protein layers because of the hybrid effect of tribo- and piezo-electricity. The high power generated (~1 mW/cm2) is sufficient to activate low-power electrical devices, such as LEDs, oximeters, and stopwatches. Additionally, the EG-skin can be used as a tactile identifier for finger movements with quantized real-time electrical signals. The softness and skin-adhesive properties provide conformal interfaces with human skin and biological tissues, and we can harvest energies of approximately 6.2 and 0.9 μW/cm2, respectively, from their mechanical stimulation. The silk-protein-based artificial EG-skin can be effectively utilized in human–machine interfaces, tactile sensors, soft robotics, and biomedical implants. | en_US |
dc.description.sponsorship | The authors acknowledge support from the National Research Foundation (NRF) of Korea (no. 2019R1A2C2088615), the GRRC program of Gyeonggi province (GRRC-AJOU-2016-B01, Photonics-Medical Convergence Technology Research Center), and the Korea Institute of Energy Technology Evaluation and Planning (no. 20184030202220, Human Resources Program in Energy Technology). | en_US |
dc.language.iso | en | en_US |
dc.publisher | ELSEVIER | en_US |
dc.subject | Silk protein; Nanorods; Nanocomposite; Piezoelectric; Electronic skin; Energy harvest | en_US |
dc.title | Self-powered artificial skin made of engineered silk protein hydrogel | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1016/j.nanoen.2020.105242 | en_US |
dc.relation.journal | NANO ENERGY | - |
dc.contributor.googleauthor | Gogurla, Narendar | - |
dc.contributor.googleauthor | Roy, Biswajit | - |
dc.contributor.googleauthor | Kim, Sunghwan | - |
dc.relation.code | 2020048631 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | SCHOOL OF ELECTRICAL AND BIOMEDICAL ENGINEERING | - |
dc.identifier.pid | skim81 | - |
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