Bio-compatible organic humidity sensor based on natural inner egg shell membrane with multilayer crosslinked fiber...

Area of Science:

• Materials Science
• Biocompatible Sensors
• Organic Electronics

Background:

• Traditional humidity sensors often rely on synthetic materials.
• There is a growing demand for sustainable and biocompatible sensing technologies.
• Natural materials offer unique structural and functional properties for sensor applications.

Purpose of the Study:

• To develop a novel biocompatible organic humidity sensor.
• To utilize natural inner eggshell membrane (IESM) as both substrate and active sensing layer.
• To investigate the performance characteristics of IESM-based humidity sensors.

Main Methods:

• Fabrication of interdigitated electrodes (IDEs) on IESM using inkjet printing.
• Testing sensor performance across a relative humidity (RH) range of 0% to 90%.
• Recording output impedance and capacitance at 1 kHz and 10 kHz.

Main Results:

• The IESM-based humidity sensors exhibited stable operation from 0% to 90% RH.
• Sensor 1 showed response and recovery times of ~1.99 sec and ~8.76 sec.
• Sensor 2 demonstrated response and recovery times of ~2.32 sec and ~9.21 sec.

Conclusions:

• Natural inner eggshell membrane is a viable material for fabricating biocompatible organic humidity sensors.
• The developed sensors offer fast response and recovery, suitable for practical applications.
• This research opens new avenues for bio-compatible devices in everyday life.