Compartmentalization of electrophoretically separated analytes in a multiphase microfluidic platform |
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Authors: | Draper Mark C Niu Xize Cho Soongwon James David I Edel Joshua B |
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Affiliation: | Department of Chemistry, Imperial College London, Kensington, London, United Kingdom. |
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Abstract: | Herein, we describe the monolithic integration of a multiphase microfluidic system to a microcapillary gel electrophoresis (μCGE) architecture for the complete isolation and storage of separated analyte bands. Within this platform, analyte molecules are separated using microchannel gel electrophoresis, and the eluted bands are stored in a sequence of approximately 40-600 encapsulating microdroplets. Importantly, employing such a system allows for total control of droplet size, shape, and composition. This approach is utilized to separate, optically detect, and encapsulate two fluorescent analytes from a composite sample mixture. Further to this, we subsequently investigate the potential of the system to be used as a concentration gradient generator through analysis of the segmented analyte bands and droplet composition. |
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