| 초록 |
Microalgae, unicellular photosynthetic organisms, have received great attention for biological conversion of CO2 into valuable products. For the commercial use of microalgae, it is necessary to screening of strains for enhanced biomass productivity. To isolate the fast-growing microalgal strains, we developed density–based separation of cell–containing magnetic microdroplets. When the magnetic field was applied to droplets in the perpendicular direction of flow, magnetic droplets could be attracted toward the magnet having different acceleration. Consequently, the 91.90% of empty, 87.12% of low, and 90.66% of high density droplets could pass through the outlet 1, 2, and 3, respectively using expanded microchannel with stepwise increase of expansion angle. These results demonstrated three different densities of microdroplets can be separated with high efficiency using magnetic force. |
