Multifunctional Flexible Sensor with Bionic Micro-Nano Hierarchical Structure for Dual-Mode Pressure and Temperature...

Area of Science:

• Materials Science
• Nanotechnology
• Biomimetics

Background:

• Flexible electronic devices are crucial for healthcare and electronic skin applications.
• Existing multifunctional sensors face challenges in performance and signal decoupling.
• Bioinspiration offers novel strategies for sensor design.

Purpose of the Study:

• To develop a bionic multifunctional (BMF) sensor with enhanced performance.
• To achieve simultaneous pressure and temperature sensing.
• To explore applications in healthcare and human-machine interaction.

Main Methods:

• Fabrication of a BMF sensor using MXene-coated melamine foam and CNT/PVDF nanofiber membrane.
• Incorporation of a micro-nano hierarchical structure for hydrophobicity.
• Integration into sensor arrays for pressure-temperature mapping.

Main Results:

• Achieved ultra-high pressure sensitivity (986.51 kPa⁻¹) and wide detection range (0-200 kPa).
• Demonstrated fast response time (22 ms) and notable temperature sensitivity (9.891 µVK⁻¹).
• Successfully monitored human physiological signals and enabled intelligent gesture recognition.

Conclusions:

• The BMF sensor exhibits excellent performance for simultaneous multi-modal sensing.
• The developed sensor has significant potential in healthcare, robotics, and AI-driven human-machine interaction.
• Bioinspired design provides a viable pathway for advanced sensor development.