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Modification of microfluidic paper-based devices with dye nanomaterials obtained by encapsulation of compounds in Y and ZSM5 zeolites

  • Bertão, Ana Raquel; Pires, Nuno; Fonseca, António M.; Soares, Olívia S.G.P.; Pereira, Manuel F.R.; Dong, Tao; Neves, Isabel C.
  • Sensors and Actuators, B: Chemical, (In Press), 2018

Publisher: Elsevier

Abstract

Zeolite nanostructures were used as hosts for dyes normally used in some bioassays (pH and protein), and applied on microfluidic paper-based analytical devices (μPADs). The obtained dye nanomaterials were characterized by several techniques (structural (FTIR and XRD), surface (SEM/EDX), textural (N2 adsorption) analyses and dye loading determination by TGA analysis), to confirm the stability of both host and guest. After their deposition on the paper’s surface, the color change was studied by analyzing the RGB values, taking into account the lifetime and the results stability of the μPADs. The ...

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