Skin-attachable and biofriendly chitosan-diatom triboelectric nanogenerator
By Jongnam Kim, Jeehee Lee, Taesik Go, Araz Rajabi‐Abhari, Manmatha Mahato, Jeong Y. Park, Haeshin Lee, Il-Kwon Oh. 2020
156 citations recorded by the source corpus.
Abstract Skin-attachable wearable devices including triboelectric nanogerators (TENGs) and self-powered sensors will have biofriendly and biocompatible issues, because they can directly interact with the human body. Based on the diatom frustule and chitosan, known as biocompatible ocean biomaterials, we developed a chitosan-diatom TENG for biofriendly and skin-attachable wearable devices. The highly porous diatom frustule, which is naturally abundant and mass-producible from mega-scale ocean environments, can be used as a biocompatible additive to greatly change electro-positivity and surface properties of chitosan films, showing bio-affinity and much higher output power. The time averaged power density of the chitosan-diatom triboelectric nanogenerator is measured as 15.7 mW/m2, which is 3.7 times higher than that of the pure chitosan TENG. For practical applications, the electrode-encapsulated chitosan-diatom film is successfully applied for a self-powered watch and a skin-attachable motion sensor. We believe that the diatom bio-silica can be used to make a synergy with other biomaterials for achieving the high power of TENGs for the skin-attachable wearable devices.
Subfields: Biomedical Engineering, Cognitive Neuroscience, Polymers and Plastics
View Paper: https://www.semanticscholar.org/paper/89cd45446916c97770812e18f98983e01e2f03bc
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In Biomedical Engineering
In Cognitive Neuroscience
In Polymers and Plastics
Citations in the corpus
- Design, manufacturing and applications of wearable triboelectric nanogenerators (2021, unknown): “2C) [71].”
- Triboelectric nanogenerator based on degradable materials (2020, methodology): “The degradable material gelatin mixed with different proportions of silica gel used as the triboelectric layer.(46)Faliang He et al used silk nanofibers and PVA/MXene nanofibers as the triboelectric FIGURE 6 DB-TENG for energy harvesting.”