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Related Experiment Video

Updated: Nov 20, 2025

Hybrid Printing for the Fabrication of Smart Sensors
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3D printed smart silk wearable sensors.

Tianshu Chu1, Huili Wang, Yumeng Qiu

  • 1School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, China. gaobb@njtech.edu.cn.

The Analyst
|January 21, 2021
PubMed
Summary

Researchers developed a versatile wearable silk sensor using 3D printing for simultaneous detection of cancer markers and motion. This biocompatible device offers potential for advanced point-of-care testing and artificial organ systems.

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Area of Science:

  • Biomedical Engineering
  • Materials Science
  • Nanotechnology

Background:

  • Wearable sensors are crucial for point-of-care testing (POCT) due to their flexibility and integration capabilities.
  • Sensitive physiological and biochemical sensing requires advanced sensor materials and designs.

Purpose of the Study:

  • To develop a multifunction wearable silk patch integrating electronic and microchannels for simultaneous sensing.
  • To leverage the unique properties of silk fibroin (SF) and polyvinyl alcohol (PVA) for enhanced sensor performance.

Main Methods:

  • Utilized matrix-assisted sacrificial 3D printing to fabricate multi-layer channel-integrated silk wearable sensors.
  • Incorporated a composite silk film (PVA and SF) to impart tensile properties, self-healing, and biocompatibility.

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Main Results:

  • The fabricated silk wearable sensors demonstrated simultaneous sensitive detection of human cancer markers (carcinoembryonic antigen (CEA) and alpha-fetoprotein (AFP)).
  • Enabled integrated motion monitoring capabilities within the same wearable device.
  • The composite silk film provided excellent tensile properties, self-healing ability, and biocompatibility.

Conclusions:

  • The developed silk wearable sensors show significant potential for sensitive sensing applications in POCT.
  • These sensors are promising for broader applications in artificial skin and organ-on-a-chip systems.
  • The multifunctionality and material properties pave the way for next-generation wearable diagnostic tools.