Glucose Sensing Using Capacitive Biosensor Based on Polyvinylidene Fluoride Thin Film

Glucose Sensing Using Capacitive Biosensor Based on Polyvinylidene Fluoride Thin Film

A polyvinylidene fluoride (PVDF) film-based capacitive biosensor was developed for glucose sensing. This device consists of a PVDF film sandwiched between two electrodes. A capacitive biosensor measures the dielectric properties of the dielectric layers at the interface between the electrolyte and the electrode. A glucose oxidase (GOx) enzyme was immobilized onto the electrode to oxidize glucos...

Integration of a Thin Film PDMS-Based Capacitive Sensor for Tactile Sensing in an Electronic Skin

We present a capacitive force sensor based on a polydimethylsiloxane (PDMS) film integrated into a printed circuit board (PCB) on a flexible substrate whose layout is defined by inkjet printing. The influence of the dielectric thickness on the sensor behavior is presented.The thinner PDMS film of about 45 μm shows a sensitivity of up to 3 pF/N but poorer dynamic response.The dielectrics with th...

Passive Wireless Sensing Using SWNT- based Multifunctional Thin Film Patches

This study presents a high-performance inductively coupled multifunctional carbon nanotube thin film sensor for structural monitoring applications. A versatile layer-by-layer self-assembly sensor fabrication technique is employed to encode different sensing mechanisms (e.g., strain and corrosion/pH) within one homogeneous thin film structure. Judicious selection of various polyelectrolyte speci...

Investigation of ferroelectric properties and structural relaxation dynamics of polyvinylidene fluoride thin film via second harmonic generation

Glucose biosensor based on immobilization of glucose oxidase in platinum nanoparticles/graphene/chitosan nanocomposite film.

The bionanocomposite film consisting of glucose oxidase/Pt/functional graphene sheets/chitosan (GOD/Pt/FGS/chitosan) for glucose sensing is described. With the electrocatalytic synergy of FGS and Pt nanoparticles to hydrogen peroxide, a sensitive biosensor with a detection limit of 0.6 microM glucose was achieved. The biosensor also has good reproducibility, long-term stability and negligible i...