Fig. 6: Parallel assay of PSA and CEA using flow-through devices integrated with Au nanorods. | Microsystems & Nanoengineering

Fig. 6: Parallel assay of PSA and CEA using flow-through devices integrated with Au nanorods.

From: Monolithic integration of nanorod arrays on microfluidic chips for fast and sensitive one-step immunoassays

Fig. 6

a Schematic description of the flow-through immunoassay device integrated with Au nanorods for parallel biomarker quantification. The sample fluid was split into three streams passing over reaction chambers immobilized with distinct cAbs for detection of the cancer biomarkers PSA and CEA. b Fluorescent images of the reaction chambers on flow-through devices with Au nanorods (upper panel) and glass substrates (lower panel) after detecting serum samples containing solely 1 ng mL−1 PSA (sample A), 1 ng mL−1 CEA (sample B), or the mixed PSA/CEA with an equal concentration of 1 ng mL−1 (sample C)

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