An Ultra-Sensitive Multi-Functional Optical Micro/Nanofiber Based on Stretchable Encapsulation

Stretchable optical fiber sensors (SOFSs), which are promising and ultra-sensitive next-generation sensors, have achieved prominent success in applications including health monitoring, robotics, and biological–electronic interfaces. Here, we report an ultra-sensitive multi-functional optical micro/n...

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Autores principales:	Siheng Xiang, Hui You, Xinxiang Miao, Longfei Niu, Caizhen Yao, Yilan Jiang, Guorui Zhou
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	optical micro/nanofiber multi-functional flexible encapsulation wearable healthcare sensor Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/1e9920e71de848918aa7db92a9817c8b
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spelling	oai:doaj.org-article:1e9920e71de848918aa7db92a9817c8b2021-11-25T18:56:25ZAn Ultra-Sensitive Multi-Functional Optical Micro/Nanofiber Based on Stretchable Encapsulation10.3390/s212274371424-8220https://doaj.org/article/1e9920e71de848918aa7db92a9817c8b2021-11-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/22/7437https://doaj.org/toc/1424-8220Stretchable optical fiber sensors (SOFSs), which are promising and ultra-sensitive next-generation sensors, have achieved prominent success in applications including health monitoring, robotics, and biological–electronic interfaces. Here, we report an ultra-sensitive multi-functional optical micro/nanofiber embedded with a flexible polydimethylsiloxane (PDMS) membrane, which is compatible with wearable optical sensors. Based on the effect of a strong evanescent field, the as-fabricated SOFS is highly sensitive to strain, achieving high sensitivity with a peak gauge factor of 450. In addition, considering the large negative thermo-optic coefficient of PDMS, temperature measurements in the range of 30 to 60 °C were realized, resulting in a 0.02 dBm/°C response. In addition, wide-range detection of humidity was demonstrated by a peak sensitivity of 0.5 dB/% RH, with less than 10% variation at each humidity stage. The robust sensing performance, together with the flexibility, enables the real-time monitoring of pulse, body temperature, and respiration. This as-fabricated SOFS provides significant potential for the practical application of wearable healthcare sensors.Siheng XiangHui YouXinxiang MiaoLongfei NiuCaizhen YaoYilan JiangGuorui ZhouMDPI AGarticleoptical micro/nanofibermulti-functionalflexible encapsulationwearable healthcare sensorChemical technologyTP1-1185ENSensors, Vol 21, Iss 7437, p 7437 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	optical micro/nanofiber multi-functional flexible encapsulation wearable healthcare sensor Chemical technology TP1-1185
spellingShingle	optical micro/nanofiber multi-functional flexible encapsulation wearable healthcare sensor Chemical technology TP1-1185 Siheng Xiang Hui You Xinxiang Miao Longfei Niu Caizhen Yao Yilan Jiang Guorui Zhou An Ultra-Sensitive Multi-Functional Optical Micro/Nanofiber Based on Stretchable Encapsulation
description	Stretchable optical fiber sensors (SOFSs), which are promising and ultra-sensitive next-generation sensors, have achieved prominent success in applications including health monitoring, robotics, and biological–electronic interfaces. Here, we report an ultra-sensitive multi-functional optical micro/nanofiber embedded with a flexible polydimethylsiloxane (PDMS) membrane, which is compatible with wearable optical sensors. Based on the effect of a strong evanescent field, the as-fabricated SOFS is highly sensitive to strain, achieving high sensitivity with a peak gauge factor of 450. In addition, considering the large negative thermo-optic coefficient of PDMS, temperature measurements in the range of 30 to 60 °C were realized, resulting in a 0.02 dBm/°C response. In addition, wide-range detection of humidity was demonstrated by a peak sensitivity of 0.5 dB/% RH, with less than 10% variation at each humidity stage. The robust sensing performance, together with the flexibility, enables the real-time monitoring of pulse, body temperature, and respiration. This as-fabricated SOFS provides significant potential for the practical application of wearable healthcare sensors.
format	article
author	Siheng Xiang Hui You Xinxiang Miao Longfei Niu Caizhen Yao Yilan Jiang Guorui Zhou
author_facet	Siheng Xiang Hui You Xinxiang Miao Longfei Niu Caizhen Yao Yilan Jiang Guorui Zhou
author_sort	Siheng Xiang
title	An Ultra-Sensitive Multi-Functional Optical Micro/Nanofiber Based on Stretchable Encapsulation
title_short	An Ultra-Sensitive Multi-Functional Optical Micro/Nanofiber Based on Stretchable Encapsulation
title_full	An Ultra-Sensitive Multi-Functional Optical Micro/Nanofiber Based on Stretchable Encapsulation
title_fullStr	An Ultra-Sensitive Multi-Functional Optical Micro/Nanofiber Based on Stretchable Encapsulation
title_full_unstemmed	An Ultra-Sensitive Multi-Functional Optical Micro/Nanofiber Based on Stretchable Encapsulation
title_sort	ultra-sensitive multi-functional optical micro/nanofiber based on stretchable encapsulation
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/1e9920e71de848918aa7db92a9817c8b
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An Ultra-Sensitive Multi-Functional Optical Micro/Nanofiber Based on Stretchable Encapsulation

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