Corrigendum to “Synthesis and characterization of biocompatible carbon-gold (C-Au) nanocomposites and their biomedical applications as an optical sensor for creatinine detection and cellular imaging” [Sens. Actuators B: Chem. 258 (2018) 1267–1278] (S0925400517322797) (10.1016/j.snb.2017.11.148))