This presentation describes the design, fabrication and analytical applications of flexible multi-sensor arrays. The sensor arrays were fabricated on flexible substrates using simple inkjet-printing technology. To achieve this, two types of nanoformulations were prepared: one formulation composed of conducting nanoparticle ink and the other composed of polymeric semiconducting nanoparticle ink. The polymeric and conducting inks were synthesized via chemical methods. Characterization of these inks was performed by cyclic voltammetry, Fourier-transformation infrared spectroscopy, UV-visible spectroscopy, Raman spectroscopy, and scanning electron microscopy. The sensor arrays were designed and printed such that the semi-conducting polymeric layer bridged the electrodes fabricated from the conducting nanoparticle ink. The polymer bridge layers acted as the sensing elements while the conducting ink layer acted as the electrodes as well as the interconnects for the circuits. The sensor arrays will be employed for the detection of various analytes. The goal is to achieve reproducible, cost efficient, and flexible sensor array fabrication with the potential for mass production.

Inkjet-printed multisensor arrays on flexible substrates

249th National Meeting (2015)

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