Fig. 3 | Scientific Reports

Fig. 3

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

Fig. 3

Glucose enzyme insertion point (inlet) and test sample placement point (outlet) in the microfluidic device. (a) The insertion points where glucose enzyme containing phosphate buffer, glucose oxidase, peroxide, and Phenol reagents are placed. The image capture region where the glucose test sample is placed. The enzyme traverses along the channel and reaches the outlet well to undergo GOD/POD reaction leading to formation of PINK coloured quinonimine complex. Subsequently, images are captured with the help of smartphone. (b) The top view of the fabricated microfluidic device with inlet opening also called the insertion point and output wells (image capture region). The arrow indicates the direction of fluid motion.

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