7.5.4 Flexible optical chemical sensor platform for BTX

Juan Diego Arias Espinoza, Sami Sabik, Edsger Smith, Herman Schoo, Viacheslav Sazhnikov, Dmitriy Ionov, Michail Alfimov, Sandeep Kalathimekkad, Geert Van Steenberge & Malgorzata Pósniak
An in-plane flexible sensor platform for BTX detection was developed using low-cost patterning techniques and foilbased optical components. The platform was produced by a combination of laser patterning, inkjet printing and capillary filling. Key optical components such as lightguides, optical cladding layers and metallic interconnections were realized on low cost substrates such as paper and PET The sensing mechanism is based on the change in fluorescence spectra of a reporter dye, supported over a porous...