| 摘要 |
The present invention features a microfluidic device for detecting Escherichia coli. The device comprises (a) a base slide having a first inlet and a second inlet, both of which connect at a vertex, where the first inlet is for accepting beads conjugated with anti-E. coli and the second inlet is for accepting a sample, wherein at the vertex the beads conjugated with anti-E. coli and the sample combine to form a combined mixture; (b) a portable spectrometer and a light source; and (c) a first fiber optic cable for directing an incident light into the combined mixture and a second fiber optic cable for detection of light scattering from the combined mixture, where the fiber optic cables are arranged in a proximity fiber arrangement, with the second fiber positioned above the base slide so as to detect forward light scattering at about a 45° angle.
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