Which product design innovation significantly democratized scientific research by miniaturizing a formerly expensive and complex laboratory device into a pocket-sized format?

Test your knowledge about a groundbreaking product design innovation that revolutionized scientific research accessibility. This innovation changed how scientists conduct experiments by making sophisticated technology more affordable and portable. Originally developed for specialized laboratory settings, this product design breakthrough has now been adapted for educational and commercial applications worldwide.

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Portable DNA sequencer (Oxford Nanopore MinION)
Handheld ultrasound device (Butterfly iQ)
Smartphone-based spectrometer (SCiO)
Portable electron microscope (FoldScope)