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Advanced Flexible Electronics and Wearable Biosensing Systems

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Wearables".

Deadline for manuscript submissions: 25 September 2025 | Viewed by 143

Special Issue Editor


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Guest Editor
School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
Interests: soft materials and electronics

Special Issue Information

Dear Colleagues,

Advanced flexible electronics and wearable biosensing technologies have attracted considerable attention and undergone profound innovations, poised to provide a solid foundation for full lifecycle health management and data-driven intervention therapy. These technologies leverage interdisciplinary strategies from materials science, mechanical engineering, biomedical engineering, and micro/nano fabrication, featuring properties such as wearability, mobility, sustainability, interactivity, and simplicity of operation. Designed to be lightweight, comfortable, and highly sensitive, these systems are ideal for forming intimate interfaces with curved and soft surfaces, delivering accurate and reliable real-time measurement of physiological parameters and biomarkers. Further integrating wireless communications and cloud storage technologies to build a long-term health database for individuals could provide doctors with more accurate diagnosis and personalized treatment options.

This special issue solicits high-quality contributions that focus on researching mechanisms, material design, micro/nano fabrication, system integration, and intelligent biosensing applications. In particular, we encourage original and high-quality submissions related (but not limited) to one or more of the following topics:

  • Flexible Electronics,
  • Wearable Electronics,
  • Stretchable Electronics,
  • Bioelectronics,
  • Skin Electronics,
  • Intelligent Biosensing,
  • Multimodal Biosensing,
  • Biomedical Engineering,
  • Materials Engineering,
  • Mechanical Engineering.

Dr. Mengge Wu
Guest Editor

Manuscript Submission Information

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Keywords

  • flexible electronics
  • wearable electronics
  • stretchable electronics
  • bioelectronics
  • skin electronics
  • intelligent biosensing
  • multimodal biosensing
  • biomedical engineering
  • materials engineering
  • mechanical engineering

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Published Papers (1 paper)

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Research

14 pages, 4259 KiB  
Article
Preparation and Performance of a Grid-Based PCL/TPU@MWCNTs Nanofiber Membrane for Pressure Sensor
by Ping Zhu and Qian Lan
Sensors 2025, 25(10), 3201; https://doi.org/10.3390/s25103201 - 19 May 2025
Abstract
The intrinsic trade-off among sensitivity, response speed, and measurement range continues to hinder the wider adoption of flexible pressure sensors in areas such as medical diagnostics and gesture recognition. In this work, we propose a grid-structured polycaprolactone/thermoplastic-polyurethane nanofiber pressure sensor decorated with multi-walled [...] Read more.
The intrinsic trade-off among sensitivity, response speed, and measurement range continues to hinder the wider adoption of flexible pressure sensors in areas such as medical diagnostics and gesture recognition. In this work, we propose a grid-structured polycaprolactone/thermoplastic-polyurethane nanofiber pressure sensor decorated with multi-walled carbon nanotubes (PCL/TPU@MWCNTs). By introducing a gradient grid membrane, the strain distribution and reconstruction of the conductive network can be modulated, thereby alleviating the conflict between sensitivity, response speed, and operating range. First, static mechanical simulations were performed to compare the mechanical responses of planar and grid membranes, confirming that the grid architecture offers superior sensitivity. Next, PCL/TPU@MWCNT nanofiber membranes were fabricated via coaxial electrospinning followed by vacuum-filtration and assembled into three-layer planar and grid piezoresistive pressure sensors. Their sensing characteristics were evaluated by simple index-finger motions and slide the mouse wheel identified. Within 0–34 kPa, the sensitivities of the planar and grid sensors reached 1.80 kPa−1 and 2.24 kPa−1, respectively; in the 35–75 kPa range, they were 1.03 kPa−1 and 1.27 kPa−1. The rise/decay times of the output signals were 10.53 ms/11.20 ms for the planar sensor and 9.17 ms/9.65 ms for the grid sensor. Both sensors successfully distinguished active index-finger bending at 0–0.5 Hz. The dynamic range of the grid sensor during the extension motion of the index finger is 105 dB and, during the scrolling mouse motion, is 55 dB, affording higher measurement stability and a broader operating window, fully meeting the requirements for high-precision hand-motion recognition. Full article
(This article belongs to the Special Issue Advanced Flexible Electronics and Wearable Biosensing Systems)
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