In our group, we have developed a flexible, power
efficient, and very sensitive cilia sensing system that consists of two main
1. A force responsive hair-like structure made of a permanent
magnetic nanocomposite material that combines the advantages of polymers like
flexibility, elasticity, chemical resistance and biocompatibility with the
unique properties of magnetic nanowires such as shape anisotropy. This unique
magnetic nanocomposite does not require the application of an external magnetic
field, which is an attractive feature to reduce the power consumption and allow
miniaturization and integration.
2. A thin film magnetic field sensor (e.g. Giant
magneto-impedance sensor (GMI)) to detect the change of the stray magnetic
field of the permanent magnetic hair upon deflection due to an external force.
The first sensing concept we developed was a flow sensor
that featured high sensitivity and extremely low power consumption of less than
Currently, we are working on a tactile sensor
for smart skin applications.