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Morphological Hydrogel Microfibers with MXene Encapsulation for Electronic Skin.
Jiahui Guo1,2, Yunru Yu1,3, Dagan Zhang1,2
1State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China.
Research (Washington, D.C.)
|March 25, 2021
Summary
Researchers developed novel conductive hydrogel microfibers using MXene encapsulation. These microfibers exhibit sensitive responses to motion and heat, showing promise for advanced electronic skins and flexible electronics.
Area of Science:
- Materials Science
- Flexible Electronics
- Nanotechnology
Background:
- Electronic skins are crucial for advanced flexible electronics.
- Developing materials with controlled morphology and conductivity is essential.
- MXene offers unique properties for electronic applications.
Purpose of the Study:
- To create novel morphologically conductive hydrogel microfibers with MXene encapsulation.
- To investigate the fabrication and properties of these microfibers using microfluidics.
- To demonstrate their potential applications in smart electronic skins.
Main Methods:
- Utilized a multi-injection coflow glass capillary microfluidic chip for fiber fabrication.
- Employed coaxial flows and alginate-calcium ion gelation for hollow microfiber formation.
- Encapsulated MXene within hydrogel microfibers with controllable structures.
Main Results:
- Successfully fabricated hollow straight and helical MXene hydrogel microfibers with controllable morphologies.
- Demonstrated that microfluidic parameters (flow rates) allow tailoring of structure and size.
- Observed sensitive resistance changes in response to motion and photothermal stimuli.
Conclusions:
- The developed MXene hydrogel microfibers possess excellent morphological control and conductivity.
- These microfibers exhibit sensitive responses to external stimuli, suitable for electronic applications.
- The findings suggest significant potential for these microfibers in smart flexible electronics, particularly electronic skins.
