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Schematic of multiplexed droplet microfluidic miRNA analysis. a Syringe pumps create 10-nL droplets of labeled sample that flow to a laser-induced fluorescence setup with four sets of optical fibers, filters, and photomultiplier tubes (PMTs). b One droplet from each sample is formed in sequence. c Individual signals are measured for each sample. d Droplet creation zone. e Droplets generated in a channel; scale bar is 500 μm. Adapted from ref. [43]. Copyright 2020 Springer
