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Self-Adhesive and Reprocessable Ionogel Sensor from Controllable Ionized Corncob Cellulose.

Jialin Jian1,2, Jiaqi Su1,2, Yujian Song1,2

  • 1College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China.

Polymers
|April 12, 2025
PubMed
Summary

Researchers transformed agricultural waste into advanced ionized cellulose. This sustainable material shows excellent strength, stability, and adhesion, enabling eco-friendly intelligent sensors for wearable electronics.

Keywords:
ATRPcorncob celluloseionogelsensor

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Area of Science:

  • Sustainable Materials Science
  • Polymer Chemistry
  • Nanotechnology

Background:

  • Agricultural lignocellulosic residues pose waste and pollution challenges.
  • Valorization technologies are crucial for sustainable materials development.
  • Corncob cellulose offers a promising, underutilized feedstock.

Purpose of the Study:

  • To develop a novel functional material from corncob cellulose.
  • To create ionized cellulose with enhanced properties for advanced applications.
  • To explore the potential of this material in eco-friendly intelligent sensors.

Main Methods:

  • Grafting methacryloxyethyl trimethyl ammonium chloride (DMC) onto corncob cellulose via atom transfer radical polymerization (ATRP) and UV-initiated polymerization.
  • Characterization of mechanical strength, thermal stability, cryogenic tolerance, and adhesion properties.
  • Evaluation of ionogel sensing capabilities for strain detection and electrocardiogram (ECG) signal acquisition.

Main Results:

  • Synthesized ionized cellulose exhibiting high tensile strength (1.28 MPa) and elongation (573%).
  • Demonstrated exceptional thermal stability (up to 278 °C) and cryogenic flexibility (at -25 °C).
  • Achieved universal adhesion (4.23 MPa to glass) and high sensing sensitivity (gauge factor 1.23-2.08).

Conclusions:

  • Corncob cellulose can be effectively transformed into a high-performance functional material.
  • The developed ionized cellulose ionogel is suitable for wearable electronics and intelligent sensing.
  • This research offers a sustainable pathway for agricultural waste valorization into advanced materials.