Magneto-active fabrics based on glucose and carbonyl iron: Effects of glucose crystallization kinetics and magnetic field on the electrical conductivity

Abstract

We fabricate a cost-effective and environmental friendly magnetoresistor based on a magnetic active tissue consisting of glucose, carbonyl iron microparticles and cotton fibers. We investigate the electrical properties of the magnetoresistor with and without an external magnetic field at pre-established time intervals for a time duration limited by glucose crystallization. We show that both glucose crystallization kinetics and magnetic field sensibly influence the electrical properties of the magnetoresistor. Owing to these effects, the magnetoresistor can be used as a sensor for monitoring glucose and metabolic processes. We explain the obtained results by using the model of dipolar approximations.