Integrated microfluidic platform for algal toxin analysis

A simple microfluidic chip to detect the algal toxins was fabricated by polydimethylsiloxane (PDMS). A heterogeneous immuno-enzyme assay was constructed inside the microfluidic device for rapid and automatic analysis of the algal toxins. Within this device, microcystin can be analyzed in 15 minute with detection limit at 0.02 ng/ml. The designed device is highly automatic, more efficient and economic compared with conventional techniques, which is not only suitable for rapid toxin analysis, but also has potential applications in fast protein analysis in biomedical fields.