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Optical and SEM images of the C. elegans embryos. (a) eggs-control; (b) after treatment with 200 μM of Na[o-COSAN] for 24 h at room temperature under gentle agitation; (c) after treatment with 200 μM of Na[8,8′-I2-o-COSAN] for 24 h at room temperature under gentle agitation. Bar size 20 μm.
