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The signal-to-noise level of light emitting diode (LED) fluorimetry using a liquid-core-waveguide (LCW)-based microfluidic capillary electrophoresis system was significantly enhanced using a synchronized dual wavelength modulation (SDWM) approach. A blue LED was used as excitation source and a red LED as reference source for background-noise compensation in a microfluidic capillary electrophoresis...
This paper presents a new approach for the metrological characterization of microfabricated features on microfluidic chips, based on a combination of poly(dimethylsiloxane) (PDMS) replication and charge-coupled device (CCD) imaging. A PDMS replicate was cast from the original chip sample, and a 2-mm thick sample slice was cut from the replica at the cross-section to be studied. The digital image of...
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