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E.coli-OMVs提取及鉴定
Extraction and identification of outer membrane vesicles (OMVs) from wild-type E.coli. A: Observation of the isolated OMVs under transmission electron microscope (Original magnification: × 200 000). The OMVs showed a hollo, circular or elliptical morphology with a double-layer membrane; B: Particle size analysis of the OMVs showed that the diameter of the OMVs ranged from 30 nm to 450 nm.
