Abstract:
There is a current trend to finds alternatives to
non-biodegradable synthetic polymers and toxic inorganics
with more eco-friendly natural materials. This study
demonstrates the potential of Micro Crystalline Cellulose
(MCC) as a smart material. Highly hydrophilic MCC has an
excellent affinity for moisture. The study investigates the
performance of MCC as a transducer material for capacitive
relative humidity (RH) sensors in the frequency range from 50
Hz to 5 MHz. The MCC transducer provides remarkably
accurate RH measurements for RH range 77-100%. As this
transducer is compatible with most of the wearable materials,
the proposed sensor could even be developed as a wearable
sensor. The results provided here could open significant
opportunities in the wearable sensor developments.