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Bioinspired and bristled microparticles for ultrasensitive pressure and strain sensors

Biological sensory organelles are often structurally optimized for high sensitivity. Tactile hairs or bristles are ubiquitous mechanosensory organelles in insects. The bristle features a tapering spine that not only serves as a lever arm to promote signal transduction, but also a clever design to pr...

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Autores principales: Yin, Bing, Liu, Xiaomeng, Gao, Hongyan, Fu, Tianda, Yao, Jun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6279775/
https://www.ncbi.nlm.nih.gov/pubmed/30514869
http://dx.doi.org/10.1038/s41467-018-07672-2
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author Yin, Bing
Liu, Xiaomeng
Gao, Hongyan
Fu, Tianda
Yao, Jun
author_facet Yin, Bing
Liu, Xiaomeng
Gao, Hongyan
Fu, Tianda
Yao, Jun
author_sort Yin, Bing
collection PubMed
description Biological sensory organelles are often structurally optimized for high sensitivity. Tactile hairs or bristles are ubiquitous mechanosensory organelles in insects. The bristle features a tapering spine that not only serves as a lever arm to promote signal transduction, but also a clever design to protect it from mechanical breaking. A hierarchical distribution over the body further improves the signal detection from all directions. We mimic these features by using synthetic zinc oxide microparticles, each having spherically-distributed, high-aspect-ratio, and high-density nanostructured spines resembling biological bristles. Sensors based on thin films assembled from these microparticles achieve static-pressure detection down to 0.015 Pa, sensitivity up to 121 kPa(−1), and a strain gauge factor >10(4), showing supreme overall performance. Other properties including a robust cyclability >2000, fast response time ~7 ms, and low-temperature synthesis compatible to various integrations further indicate the potential of this sensor technology in applying to wearable technologies and human interfaces.
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spelling pubmed-62797752018-12-06 Bioinspired and bristled microparticles for ultrasensitive pressure and strain sensors Yin, Bing Liu, Xiaomeng Gao, Hongyan Fu, Tianda Yao, Jun Nat Commun Article Biological sensory organelles are often structurally optimized for high sensitivity. Tactile hairs or bristles are ubiquitous mechanosensory organelles in insects. The bristle features a tapering spine that not only serves as a lever arm to promote signal transduction, but also a clever design to protect it from mechanical breaking. A hierarchical distribution over the body further improves the signal detection from all directions. We mimic these features by using synthetic zinc oxide microparticles, each having spherically-distributed, high-aspect-ratio, and high-density nanostructured spines resembling biological bristles. Sensors based on thin films assembled from these microparticles achieve static-pressure detection down to 0.015 Pa, sensitivity up to 121 kPa(−1), and a strain gauge factor >10(4), showing supreme overall performance. Other properties including a robust cyclability >2000, fast response time ~7 ms, and low-temperature synthesis compatible to various integrations further indicate the potential of this sensor technology in applying to wearable technologies and human interfaces. Nature Publishing Group UK 2018-12-04 /pmc/articles/PMC6279775/ /pubmed/30514869 http://dx.doi.org/10.1038/s41467-018-07672-2 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Yin, Bing
Liu, Xiaomeng
Gao, Hongyan
Fu, Tianda
Yao, Jun
Bioinspired and bristled microparticles for ultrasensitive pressure and strain sensors
title Bioinspired and bristled microparticles for ultrasensitive pressure and strain sensors
title_full Bioinspired and bristled microparticles for ultrasensitive pressure and strain sensors
title_fullStr Bioinspired and bristled microparticles for ultrasensitive pressure and strain sensors
title_full_unstemmed Bioinspired and bristled microparticles for ultrasensitive pressure and strain sensors
title_short Bioinspired and bristled microparticles for ultrasensitive pressure and strain sensors
title_sort bioinspired and bristled microparticles for ultrasensitive pressure and strain sensors
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6279775/
https://www.ncbi.nlm.nih.gov/pubmed/30514869
http://dx.doi.org/10.1038/s41467-018-07672-2
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