Fig. 6From: Multienzymes activity of metals and metal oxide nanomaterials: applications from biotechnology to medicine and environmental engineeringSERS spectra of oxidized TMB molecules on the surface of fingerprint from diabetes patients and normal pers in the presence of Ag-Cu2O/rGO substrates and GOx. The bottom line is blank test without fingerprint. On the right is schematic representation of SERS detection of fingerprint by using Ag-Cu2O/rGO nanocomposites as SERS substrateBack to article page