Cited by 549Advanced Sensor and Energy Harvesting MaterialsSilk-based biomaterials and applicationsNanomaterials and Printing Technologies

Carbonized Silk Nanofiber Membrane for Transparent and Sensitive Electronic Skin

Wang, Qi, Jian, Muqiang, Wang, Chunya, Zhang, Yingying·2017·Advanced Functional Materials

Abstract

Recent years have witnessed the explosive development of electronic skin. Highly sensitive pressure sensing is one of the primary abilities of electronic skin. To date, most of the reported skin‐like pressure sensors are based on nanomaterials and microstructured polydimethylsiloxane (PDMS) films, limiting their wide practical applications due to the unknown biotoxicity and the redundant fabrication procedure. A cost‐effective, large‐area‐capable, and biocompatible approach for fabrication of high‐performance skin‐like pressure sensors is highly desired. Silk fibroin (SF) is a natural protein that has recently drawn great attention due to its application as the substrate for flexible electronics. Here, the fabrication of skin‐like pressure sensors is demonstrated using SF‐derived active materials. Flexible and conformal pressure sensors can be fabricated using transparent carbonized silk nanofiber membranes (CSilkNM) and unstructured PDMS films through a cost‐effective and large‐scale capable approach. Due to the unique N‐doped carbon nanofiber network structure of CSilkNM, the obtained pressure sensor shows superior performance, including ultrahigh sensitivity (34.47 kPa−1) for a broad pressure range, an ultralow detection limit (0.8 Pa), rapid response time (<16.7 ms), and high durability (>10 000 cycles). Based on its superior performance, its applications in monitoring human physiological signals, sensing subtle touch, and detecting spatial distribution of pressure are demonstrated.

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Crossref · 10.1002/adfm.201605657

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43 of 43 references verified0 citation errors · 0 not checkable

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  • Pressure sensitive pathways can be formed using interlocked structures, percolative networks of nanomaterials, microfabricated structures, porous structures, and so forth.

    “Pressure sensitive pathways can be formed using interlocked structures, [139][140][141][142][143][144] percolative networks of nanomaterials, [57,145,146] microfabricated structures (e.g., micropyramids, micropillars), [147][148][149] porous structures (e.g., sponges, foams, porous rubbers) [26,150,151] and so forth.”

    From Nanomaterial-Enabled Wearable Sensors for Healthcare (2018) · cites this paper as [57]

  • A cyclic test of 10,000 cycles confirmed the good stability of the electrospun silk nanofiber membrane pressure sensor.

    “A cyclic test of 10 000 cycles confirmed the good stability.”

    From Nanomaterial-Enabled Wearable Sensors for Healthcare (2018) · cites this paper as [57]

  • Pressure sensors made of electrospun silk nanofiber membranes achieved a low detection limit of 0.8 Pa, a fast response time of less than 16.7 ms, and sensitivities of 34.47 kPa-1 for the low pressure range (0.8-400 Pa) and 1.16 kPa-1 for the high pressure range (400-5000 Pa).

    “Pressure sensors made of electrospun silk nanofiber membranes achieved excellent piezoresistive response.[57] Low detection limit of 0.8 Pa, fast response time of less than 16.7 ms and superior sensitivity of 34.47 kPa -1 for low pressure range (0.8-400 Pa) and 1.16 kPa -1 for high pressure range (400-5000 Pa) were demonstrated.”

    From Nanomaterial-Enabled Wearable Sensors for Healthcare (2018) · cites this paper as [57]

  • Respiration rate can be accessed by measuring the deformation associated with respiration using wearable strain or pressure sensors placed on the chest, or by measuring the pressure caused by the air flow using a pressure sensor placed under the nose.

    “It can be accessed by measuring the deformation associated with respiration using wearable strain [103,120,121] or pressure sensors [57] placed on the chest, or by measuring the pressure caused by the air flow using a pressure sensor placed under the nose.[141]”

    From Nanomaterial-Enabled Wearable Sensors for Healthcare (2018) · cites this paper as [57]

  • Phonation vibrations and voice patterns can be monitored using a strain sensor or a pressure sensor attached to the neck.

    “The phonation vibrations and voice patterns can be monitored using a strain sensor [44,52,103,120,121,123,126] or a pressure sensor [57,141] attached to the neck.”

    From Nanomaterial-Enabled Wearable Sensors for Healthcare (2018) · cites this paper as [57]

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Authors
Wang, Q., Jian, M., Wang, C., & Zhang, Y.
Affiliations
Tsinghua University (CN)
Corresponding author
Zhang, Yingying
Venue
Advanced Functional Materials
Publisher
Wiley
Published
2017-01-19
Volume
27
Issue
9
ISSN
  • 1616-301X (ISSN-L)
  • 1616-3028
OpenAlex
W2577138790
Cited by
549
References
43
Citations by year
2026: 10 · 2025: 47 · 2024: 56 · 2023: 64 · 2022: 79 · 2021: 71 · 2020: 83 · 2019: 69 · 2018: 53 · 2017: 17
FWCI
27.34
Type
journal article
Language
en
Open access
closed
Locations
Advanced Functional Materials (publishedVersion)
Funders
National Natural Science Foundation of China (51672153, 51422204, 51372132)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Advanced Sensor and Energy Harvesting Materials
  • Physical Sciences › Materials Science › Biomaterials › Silk-based biomaterials and applications
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Nanomaterials and Printing Technologies
Keywords
electronic skin, pressure sensors, silk fibroin, N-doped carbon nanofibers, PDMS film, flexible electronics, biocompatible sensors, transparent sensors, physiological monitoring, tactile sensing, pressure distribution sensing

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