A Shake&Read distance-based microfluidic chip as a portable quantitative readout device for highly sensitive point-of-care testing.

Despite the rapid development of point-of-care testing (POCT) devices in recent years, quantitative POCT is still not readily available. Herein, we developed a simple, disposable and equipment-free quantitative POCT platform, the Shake&Read distance-based microfluidic Chip (S&R-μChip), for visual quantitative POCT and demonstrated its use in Enzyme-Linked Immunosorbent Assay (ELISA) for the detection of disease biomarkers.