Advanced Braille recognition based on protein biomimetic skin mechanical sensors
Tactile perception, dominated by human skin, plays an important role in human-nature interaction, especially when visual perception is limited. The key to mimicking skin tactile perception is to address skin-like properties of materials and integration of biomimetic tactile functions. To be competen...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-06-01
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| Series: | Journal of Science: Advanced Materials and Devices |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S246821792500022X |
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| author | Nianfeng Zhang Ailing Yang Andeng Liu Guoxi Shao Xixi Wang Yingjin Luo Zhihua Liu Yating Shi Na Li Wenxi Guo Wu Qiu Dapeng Yang |
| author_facet | Nianfeng Zhang Ailing Yang Andeng Liu Guoxi Shao Xixi Wang Yingjin Luo Zhihua Liu Yating Shi Na Li Wenxi Guo Wu Qiu Dapeng Yang |
| author_sort | Nianfeng Zhang |
| collection | DOAJ |
| description | Tactile perception, dominated by human skin, plays an important role in human-nature interaction, especially when visual perception is limited. The key to mimicking skin tactile perception is to address skin-like properties of materials and integration of biomimetic tactile functions. To be competent in bionic skin, composite silk fibroin (SF) films possessing high tensile properties (159.71 %) and hydrogels with elasticity (54.42 %) were prepared through a mesoscopic reconstruction strategy of SF materials, using fish scale gelatin molecules as mesoscopic templates to regulate the nucleation and crystallization kinetics of SF molecules. In addition, inspired by the mechanoreceptors, a bimodal protein bionic skin (BPBS) was prepared by horizontally integrating a single-electrode triboelectric sensor and a capacitive sensing array, which can work in sliding and pressing modes to mimic the sliding touch and pressing touch of the finger, respectively. The system achieves a 99 % Braille recognition accuracy in sliding mode through a deep learning algorithm, and Bluetooth technology enables real-time wireless Braille recognition in pressing mode, synergistically enhancing the robustness and practicality of BPBS. This research provides novel insights into enhancing human touch perception, human-computer interaction, and the advancement of intelligent prosthetics, marking a significant stride in the development of bionic skins with multimodal sensing capabilities. |
| format | Article |
| id | doaj-art-d3678bb6657348569fe2f126cdc55b15 |
| institution | DOAJ |
| issn | 2468-2179 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Science: Advanced Materials and Devices |
| spelling | doaj-art-d3678bb6657348569fe2f126cdc55b152025-08-20T03:05:50ZengElsevierJournal of Science: Advanced Materials and Devices2468-21792025-06-0110210086910.1016/j.jsamd.2025.100869Advanced Braille recognition based on protein biomimetic skin mechanical sensorsNianfeng Zhang0Ailing Yang1Andeng Liu2Guoxi Shao3Xixi Wang4Yingjin Luo5Zhihua Liu6Yating Shi7Na Li8Wenxi Guo9Wu Qiu10Dapeng Yang11College of Physics & Optoelectronic Engineering, Ocean University of China, Qingdao, 266100, PR ChinaCollege of Physics & Optoelectronic Engineering, Ocean University of China, Qingdao, 266100, PR China; Corresponding authors.Research Institute for Biomimetics and Soft Matter, College of Physical Science and Technology, Xiamen University, Xiamen, 361005, PR ChinaCollege of Physics & Optoelectronic Engineering, Ocean University of China, Qingdao, 266100, PR ChinaCollege of Physics & Optoelectronic Engineering, Ocean University of China, Qingdao, 266100, PR ChinaResearch Institute for Biomimetics and Soft Matter, College of Physical Science and Technology, Xiamen University, Xiamen, 361005, PR ChinaSchool of Rehabilitation Science and Engineering, University of Health and Rehabilitation Sciences, Qingdao, 266024, PR ChinaResearch Institute for Biomimetics and Soft Matter, College of Physical Science and Technology, Xiamen University, Xiamen, 361005, PR ChinaSchool of Rehabilitation Science and Engineering, University of Health and Rehabilitation Sciences, Qingdao, 266024, PR ChinaResearch Institute for Biomimetics and Soft Matter, College of Physical Science and Technology, Xiamen University, Xiamen, 361005, PR China; Corresponding author.School of Rehabilitation Science and Engineering, University of Health and Rehabilitation Sciences, Qingdao, 266024, PR China; Corresponding authors.School of Rehabilitation Science and Engineering, University of Health and Rehabilitation Sciences, Qingdao, 266024, PR China; School of Materials & Chemical Engineering, Quanzhou Normal University, Quanzhou, 362000, PR China; Corresponding author. School of Rehabilitation Science and Engineering, University of Health and Rehabilitation Sciences, Qingdao, 266024, PR China.Tactile perception, dominated by human skin, plays an important role in human-nature interaction, especially when visual perception is limited. The key to mimicking skin tactile perception is to address skin-like properties of materials and integration of biomimetic tactile functions. To be competent in bionic skin, composite silk fibroin (SF) films possessing high tensile properties (159.71 %) and hydrogels with elasticity (54.42 %) were prepared through a mesoscopic reconstruction strategy of SF materials, using fish scale gelatin molecules as mesoscopic templates to regulate the nucleation and crystallization kinetics of SF molecules. In addition, inspired by the mechanoreceptors, a bimodal protein bionic skin (BPBS) was prepared by horizontally integrating a single-electrode triboelectric sensor and a capacitive sensing array, which can work in sliding and pressing modes to mimic the sliding touch and pressing touch of the finger, respectively. The system achieves a 99 % Braille recognition accuracy in sliding mode through a deep learning algorithm, and Bluetooth technology enables real-time wireless Braille recognition in pressing mode, synergistically enhancing the robustness and practicality of BPBS. This research provides novel insights into enhancing human touch perception, human-computer interaction, and the advancement of intelligent prosthetics, marking a significant stride in the development of bionic skins with multimodal sensing capabilities.http://www.sciencedirect.com/science/article/pii/S246821792500022XBiomimetic skinTactile perceptionSilk fibroin (SF)MechanoreceptorsBimodal sensingBraille recognition |
| spellingShingle | Nianfeng Zhang Ailing Yang Andeng Liu Guoxi Shao Xixi Wang Yingjin Luo Zhihua Liu Yating Shi Na Li Wenxi Guo Wu Qiu Dapeng Yang Advanced Braille recognition based on protein biomimetic skin mechanical sensors Journal of Science: Advanced Materials and Devices Biomimetic skin Tactile perception Silk fibroin (SF) Mechanoreceptors Bimodal sensing Braille recognition |
| title | Advanced Braille recognition based on protein biomimetic skin mechanical sensors |
| title_full | Advanced Braille recognition based on protein biomimetic skin mechanical sensors |
| title_fullStr | Advanced Braille recognition based on protein biomimetic skin mechanical sensors |
| title_full_unstemmed | Advanced Braille recognition based on protein biomimetic skin mechanical sensors |
| title_short | Advanced Braille recognition based on protein biomimetic skin mechanical sensors |
| title_sort | advanced braille recognition based on protein biomimetic skin mechanical sensors |
| topic | Biomimetic skin Tactile perception Silk fibroin (SF) Mechanoreceptors Bimodal sensing Braille recognition |
| url | http://www.sciencedirect.com/science/article/pii/S246821792500022X |
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