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Figure 4: The microscopic images of RAW264.7 cell line treated with 20 μg/ml of AgNSs or AuNSs for different time points (0, 10 min and 48 h). Upper: the RAW monolayer exposed to AgNSs at zero-time showing morphological alteration, after10 min almost all the cells looks shrinked and rounded and after 48 h. The field shows massive cell death and a lot of cell debris. Bottom: the RAW exposed to Au NSs for zero time , 10 min and 48 h are viable, healthy and showing no difference than untreated cells. NB (these images were taken by camera Samsung). |