Degradable silk fibroin based piezoresistive sensor for wearable biomonitoring

Chunlin PANG, Fei LI, Xiaorao HU, Keyu MENG, Hong PAN*, Yong XIANG*

*Corresponding author for this work

Research output: Journal PublicationsJournal Article (refereed)peer-review

3 Citations (Scopus)

Abstract

Degradable wearable electronics are attracting increasing attention to weaken or eliminate the negative effect of waste e-wastes and promote the development of medical implants without secondary post-treatment. Although various degradable materials have been explored for wearable electronics, the development of degradable wearable electronics with integrated characteristics of highly sensing performances and low-cost manufacture remains challenging. Herein, we developed a facile, low-cost, and environmentally friendly approach to fabricate a biocompatible and degradable silk fibroin based wearable electronics (SFWE) for on-body monitoring. A combination of rose petal templating and hollow carbon nanospheres endows as-fabricated SFWE with good sensitivity (5.63 kPa−1), a fast response time (147 ms), and stable durability (15,000 cycles). The degradable phenomenon has been observed in the solution of 1 M NaOH, confirming that silk fibroin based wearable electronics possess degradable property. Furthermore, the as-fabricated SFWE have been demonstrated that have abilities to monitor knuckle bending, muscle movement, and facial expression. This work offers an ecologically-benign and cost-effective approach to fabricate high-performance wearable electronics.

Original languageEnglish
Article number55
JournalDiscover Nano
Volume19
Issue number1
Early online date25 Mar 2024
DOIs
Publication statusPublished - 25 Mar 2024
Externally publishedYes

Bibliographical note

Publisher Copyright:
© The Author(s) 2024.

Funding

This work is supported by the National Natural Science Foundation of China (Grant Nos. 52205586, 52202215), Natural Science Foundation of Sichuan Province (Grant No. 2023NSFSC0956), China Postdoctoral Science Foundation (Grant No. 2022M720652), Sichuan Province Postdoctoral Science Foundation (Grant No. TB2022057), and National Key Research and Development Program of China (Grant No. 2021YFB2401900).

Keywords

  • Biomonitoring
  • Degradable
  • Hollow carbon spheres
  • Silk fibroin
  • Wearable

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