“…To ensure the accuracy and clinical applicability of the built sensor, a standard addition method 48 was introduced for clinical bioassay of cyt c in the diluted human serum samples (initially 100fold diluted with the PBS) upon injection with the medical saline and glucose. In brief, three different cyt c concentrations (i.e., 1.00, 0.10, and 0.01 pg mL −1 ) were dissolved with the serum samples.…”