Multifunctional flexible optical waveguide sensor: on the bioinspiration for ultrasensitive sensors development
This paper presents the development of a bioinspired multifunctional flexible optical sensor (BioMFOS) as an ultrasensitive tool for force (intensity and location) and orientation sensing. The sensor structure is bioinspired in orb webs, which are multifunctional devices for prey capturing and vibra...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Institue of Optics and Electronics, Chinese Academy of Sciences
2022-10-01
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| Series: | Opto-Electronic Advances |
| Subjects: | |
| Online Access: | https://www.oejournal.org/article/doi/10.29026/oea.2022.210098 |
| _version_ | 1811177970606276608 |
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| author | Arnaldo Leal-Junior Leticia Avellar Vitorino Biazi M. Simone Soares Anselmo Frizera Carlos Marques |
| author_facet | Arnaldo Leal-Junior Leticia Avellar Vitorino Biazi M. Simone Soares Anselmo Frizera Carlos Marques |
| author_sort | Arnaldo Leal-Junior |
| collection | DOAJ |
| description | This paper presents the development of a bioinspired multifunctional flexible optical sensor (BioMFOS) as an ultrasensitive tool for force (intensity and location) and orientation sensing. The sensor structure is bioinspired in orb webs, which are multifunctional devices for prey capturing and vibration transmission. The multifunctional feature of the structure is achieved by using transparent resins that present both mechanical and optical properties for structural integrity and strain/deflection transmission as well as the optical signal transmission properties with core/cladding configuration of a waveguide. In this case, photocurable and polydimethylsiloxane (PDMS) resins are used for the core and cladding, respectively. The optical transmission, tensile tests, and dynamic mechanical analysis are performed in the resins and show the possibility of light transmission at the visible wavelength range in conjunction with high flexibility and a dynamic range up to 150 Hz, suitable for wearable applications. The BioMFOS has small dimensions (around 2 cm) and lightweight (0.8 g), making it suitable for wearable application and clothing integration. Characterization tests are performed in the structure by means of applying forces at different locations of the structure. The results show an ultra-high sensitivity and resolution, where forces in the μN range can be detected and the location of the applied force can also be detected with a sub-millimeter spatial resolution. Then, the BioMFOS is tested on the orientation detection in 3D plane, where a correlation coefficient higher than 0.9 is obtained when compared with a gold-standard inertial measurement unit (IMU). Furthermore, the device also shows its capabilities on the movement analysis and classification in two protocols: finger position detection (with the BioMFOS positioned on the top of the hand) and trunk orientation assessment (with the sensor integrated on the clothing). In both cases, the sensor is able of classifying the movement, especially when analyzed in conjunction with preprocessing and clustering techniques. As another wearable application, the respiratory rate is successfully estimated with the BioMFOS integrated into the clothing. Thus, the proposed multifunctional device opens new avenues for novel bioinspired photonic devices and can be used in many applications of biomedical, biomechanics, and micro/nanotechnology. |
| first_indexed | 2024-04-11T06:10:19Z |
| format | Article |
| id | doaj.art-f17949b21234437ab4101052511bad30 |
| institution | Directory Open Access Journal |
| issn | 2096-4579 |
| language | English |
| last_indexed | 2024-04-11T06:10:19Z |
| publishDate | 2022-10-01 |
| publisher | Institue of Optics and Electronics, Chinese Academy of Sciences |
| record_format | Article |
| series | Opto-Electronic Advances |
| spelling | doaj.art-f17949b21234437ab4101052511bad302022-12-22T04:41:18ZengInstitue of Optics and Electronics, Chinese Academy of SciencesOpto-Electronic Advances2096-45792022-10-0151011110.29026/oea.2022.210098oea-2021-0098-CarlosMultifunctional flexible optical waveguide sensor: on the bioinspiration for ultrasensitive sensors developmentArnaldo Leal-Junior0Leticia Avellar1Vitorino Biazi2M. Simone Soares3Anselmo Frizera4Carlos Marques5Graduate Program in Electrical Engineering, Federal University of Espírito Santo (UFES), Fernando Ferrari Avenue, Vitória 29075-910, BrazilGraduate Program in Electrical Engineering, Federal University of Espírito Santo (UFES), Fernando Ferrari Avenue, Vitória 29075-910, BrazilGraduate Program in Electrical Engineering, Federal University of Espírito Santo (UFES), Fernando Ferrari Avenue, Vitória 29075-910, BrazilI3N Physics Department, University of Aveiro, Aveiro 3810-193, PortugalGraduate Program in Electrical Engineering, Federal University of Espírito Santo (UFES), Fernando Ferrari Avenue, Vitória 29075-910, BrazilI3N Physics Department, University of Aveiro, Aveiro 3810-193, PortugalThis paper presents the development of a bioinspired multifunctional flexible optical sensor (BioMFOS) as an ultrasensitive tool for force (intensity and location) and orientation sensing. The sensor structure is bioinspired in orb webs, which are multifunctional devices for prey capturing and vibration transmission. The multifunctional feature of the structure is achieved by using transparent resins that present both mechanical and optical properties for structural integrity and strain/deflection transmission as well as the optical signal transmission properties with core/cladding configuration of a waveguide. In this case, photocurable and polydimethylsiloxane (PDMS) resins are used for the core and cladding, respectively. The optical transmission, tensile tests, and dynamic mechanical analysis are performed in the resins and show the possibility of light transmission at the visible wavelength range in conjunction with high flexibility and a dynamic range up to 150 Hz, suitable for wearable applications. The BioMFOS has small dimensions (around 2 cm) and lightweight (0.8 g), making it suitable for wearable application and clothing integration. Characterization tests are performed in the structure by means of applying forces at different locations of the structure. The results show an ultra-high sensitivity and resolution, where forces in the μN range can be detected and the location of the applied force can also be detected with a sub-millimeter spatial resolution. Then, the BioMFOS is tested on the orientation detection in 3D plane, where a correlation coefficient higher than 0.9 is obtained when compared with a gold-standard inertial measurement unit (IMU). Furthermore, the device also shows its capabilities on the movement analysis and classification in two protocols: finger position detection (with the BioMFOS positioned on the top of the hand) and trunk orientation assessment (with the sensor integrated on the clothing). In both cases, the sensor is able of classifying the movement, especially when analyzed in conjunction with preprocessing and clustering techniques. As another wearable application, the respiratory rate is successfully estimated with the BioMFOS integrated into the clothing. Thus, the proposed multifunctional device opens new avenues for novel bioinspired photonic devices and can be used in many applications of biomedical, biomechanics, and micro/nanotechnology.https://www.oejournal.org/article/doi/10.29026/oea.2022.210098optical sensorsoptical waveguidesbioinspired designmultifunctional structureswearable sensors |
| spellingShingle | Arnaldo Leal-Junior Leticia Avellar Vitorino Biazi M. Simone Soares Anselmo Frizera Carlos Marques Multifunctional flexible optical waveguide sensor: on the bioinspiration for ultrasensitive sensors development Opto-Electronic Advances optical sensors optical waveguides bioinspired design multifunctional structures wearable sensors |
| title | Multifunctional flexible optical waveguide sensor: on the bioinspiration for ultrasensitive sensors development |
| title_full | Multifunctional flexible optical waveguide sensor: on the bioinspiration for ultrasensitive sensors development |
| title_fullStr | Multifunctional flexible optical waveguide sensor: on the bioinspiration for ultrasensitive sensors development |
| title_full_unstemmed | Multifunctional flexible optical waveguide sensor: on the bioinspiration for ultrasensitive sensors development |
| title_short | Multifunctional flexible optical waveguide sensor: on the bioinspiration for ultrasensitive sensors development |
| title_sort | multifunctional flexible optical waveguide sensor on the bioinspiration for ultrasensitive sensors development |
| topic | optical sensors optical waveguides bioinspired design multifunctional structures wearable sensors |
| url | https://www.oejournal.org/article/doi/10.29026/oea.2022.210098 |
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