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Artificial membrane acting assay for the selection of extracts and fractions that are membrane active. The results are indicated by a color change in the microvesicles made of lipid/polydiacetylene (PDA). Blue is inactive, and pink/red/orange colors show positive membrane activity. (A) 2d10, (B) tetracycline,(C) dimethyl sulfoxide, (D) amphotericin B, and (E) vesicle
