Microfluidic Solution for High-throughput, Droplet-based Single Molecule Analysis with Low Reagent Consumption

A microfluidic device for a confocal fluorescence detection system has an input channel defined by a body of the microfluidic device, a sample concentration section defined by the body of the microfluidic device and in fluid connection with the input channel, a mixing section defined by the body of the microfluidic device and in fluid connection with the concentration section, and a detection region that is at least partially transparent to illumination light of the confocal fluorescence detection system and at least partially transparent to fluorescent light when emitted from a sample under observation as the sample flows through the detection region.