Microfluidic and Capillary Electrophoresis Applications

Microfluidics is the science and engineering of manipulating tiny volumes of fluid—often nanoliters or less—through networks of channels etched or molded into chips roughly the size of a credit card. By miniaturizing laboratory procedures onto these Lab-on-a-Chip devices, researchers can perform chemical separations, cell sorting, and disease diagnostics faster, more cheaply, and with far less sample material than conventional bench-top methods, making point-of-care testing in low-resource settings genuinely feasible. Poly(dimethylsiloxane) became the workhorse material for fabricating these chips, though current work explores whether 3D-printed plastics and paper-based substrates can lower costs and expand manufacturing access further. Open questions center on scaling mixing and reaction control down to the nanoscale, integrating multiple analytical steps—including capillary electrophoresis for separating charged biomolecules—into a single seamless device, and ensuring that prototype systems translate reliably into clinical or field use.

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Keywords

Lab-on-a-ChipPoly(dimethylsiloxane)Biomedical ResearchMicro Total Analysis Systems3D PrintingMicromixers