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2D-array sensing of chlorophyll fluorescence during short-term exposure. (a) Fluorescence intensity for different chemicals; The different letters indicate the presence or absence of statistically significant differences (p < 0.05); (b) Example of fluorescence microscopy images of the chlorophyll of 2D-array by DEP. The cells in the formed non-uniform 2D-algal assembly of trapped cells after 30 or 120 min of exposure to contaminants.
