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A. CHO cells transfected by EGFP-λ-phage nanobioparticles using fluorescent microscopy. Four cell types COS-7, CHO, TC-1 and HEK-293 were transfected by EGFP-λ-phages. The best GFP expression was observed after 48 hours by fluorescent microscopy 48 hours later in CHO cells. B. CHO experimental control.
