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Biosafety evaluation of the nanogels. The concentration of (A) aspartate aminotransferase (AST), alanine aminotransferase (ALT), and alkaline phosphatase (ALP); (B) total protein (TP), albumin (ALB), and globulin (GLOB); (C) urea, cholesterol (CHOL), and creatinine (CREA) after treated for 24 h. (D) HE-stained sections of the main organs (heart, liver, spleen, lungs, and kidneys). Scale bars = 100 μm.
