Fig. 2 | Scientific Reports

Fig. 2

From: Convolutional neural network for colorimetric glucose detection using a smartphone and novel multilayer polyvinyl film microfluidic device

Fig. 2

The fabrication steps involved in the development of adhesive-coated poly-vinyl films stacked on poly methyl methacrylate (PMMA) baseplate microfluidic device. Four layers that make up the microfluidic device are shown. (1) A single layer of white color poly-vinyl film affixed to the bottom of the PMMA base thus serving as background during image capture. (2) PMMA transparent baseplate having its top side affixed with poly-vinyl films. (3) Single or multi-layered (depending upon the required channel depth) adhesive-coated black vinyl films on which microfluidic channels are cut out using a cutting printer. (4) The adhesive-coated transparent vinyl film containing the openings for inlet and outlet wells thus sealing the microfluidic channel.

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