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Acoustic Whole Blood Plasmapheresis Chip for Prostate Specific Antigen Microarray Diagnostics

2009; American Chemical Society; Volume: 81; Issue: 15 Linguagem: Inglês

10.1021/ac9013572

1520-6882

Andreas Lenshof, Asilah Ahmad-Tajudin, Kerstin Järås, Ann-Margret Swärd-Nilsson, Lena Åberg, György Marko‐Varga, Johan Malm, Hans Lilja, Thomas Laurell,

Biosensors and Analytical Detection

The generation of high quality plasma from whole blood is of major interest for many biomedical analyses and clinical diagnostic methods. However, it has proven to be a major challenge to make use of microfluidic separation devices to process fluids with high cell content, such as whole blood. Here, we report on an acoustophoresis based separation chip that prepares diagnostic plasma from whole blood linked to a clinical application. This acoustic separator has the capacity to sequentially remove enriched blood cells in multiple steps to yield high quality plasma of low cellular content. The generated plasma fulfills the standard requirements ( 0.99) in the generated plasma via fluorescence readout without any signal amplification at clinically relevant levels (0.19−21.8 ng/mL).