Cited by 2,064Advanced Sensor and Energy Harvesting MaterialsNanomaterials and Printing TechnologiesNon-Invasive Vital Sign Monitoring

A wearable and highly sensitive pressure sensor with ultrathin gold nanowires

Open access
Gong, Shu, Schwalb, Willem, Wang, Yongwei, Chen, Yi, Tang, Yue, Si, Jye, Shirinzadeh, Bijan, Cheng, Wenlong·2014·Nature Communications

Abstract

Ultrathin gold nanowires are mechanically flexible yet robust, which are novel building blocks with potential applications in future wearable optoelectronic devices. Here we report an efficient, low-cost fabrication strategy to construct a highly sensitive, flexible pressure sensor by sandwiching ultrathin gold nanowire-impregnated tissue paper between two thin polydimethylsiloxane sheets. The entire device fabrication process is scalable, enabling facile large-area integration and patterning for mapping spatial pressure distribution. Our gold nanowires-based pressure sensors can be operated at a battery voltage of 1.5 V with low energy consumption (<30 μW), and are able to detect pressing forces as low as 13 Pa with fast response time (<17 ms), high sensitivity (>1.14 kPa(-1)) and high stability (>50,000 loading-unloading cycles). In addition, our sensor can resolve pressing, bending, torsional forces and acoustic vibrations. The superior sensing properties in conjunction with mechanical flexibility and robustness enabled real-time monitoring of blood pulses as well as detection of small vibration forces from music.

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  • A multitude of pressure sensing arrays have been demonstrated to capture the spatial pressure distributions induced by different sources, such as a static object placed onto the sensing array, gas flow, bouncing of a water droplet, finger touch, and acoustic vibration.

    “A multitude of pressure sensing arrays have been demonstrated to capture the spatial pressure distributions induced by different sources, such as a static object placed onto the sensing array, [57,139,141,158,203] gas flow, [141,144,153] bouncing of a water droplet (Figure 11a), [139] finger touch, [144,161] and acoustic vibration.[144,203]”

    From Nanomaterial-Enabled Wearable Sensors for Healthcare (2018) · cites this paper as [203]

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Authors
Gong, S., Schwalb, W., Wang, Y., Chen, Y., Tang, Y., Si, J., Shirinzadeh, B., & Cheng, W.
Affiliations
  • Melbourne Centre for Nanofabrication (AU)
  • Monash University (AU)
Corresponding author
Cheng, Wenlong
Venue
Nature Communications
Published
2014-02-04
Volume
5
Issue
1
Pages
3132-3132
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2004835256
Cited by
2,064
References
42
Citations by year
2026: 63 · 2025: 108 · 2024: 143 · 2023: 157 · 2022: 180 · 2021: 231 · 2020: 253 · 2019: 278 · 2018: 250 · 2017: 198 · 2016: 108 · 2015: 73 · 2014: 21
FWCI
69.23
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • Kimberly-Clark
  • Australian National Fabrication Facility
  • China Scholarship Council
  • Australian Research Council (DP120100170)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Advanced Sensor and Energy Harvesting Materials
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Nanomaterials and Printing Technologies
  • Physical Sciences › Engineering › Biomedical Engineering › Non-Invasive Vital Sign Monitoring
Keywords
pressure sensors, wearable electronics, flexible electronics, tissue paper, polydimethylsiloxane, low-cost fabrication, low-power sensing, mechanical flexibility, vibration sensing, optoelectronic devices

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