fig7

Figure 7. (A and B) The SERS spectra of 1 μM 4-MBA dropped on Au and Au-Ag nanorod arrays, with orange and cyan representing the peaks corresponding to CTAB and 4-MBA, respectively^[35]. (C) SERS spectra of Au-Ag Janus@Au NPs with and without 0.1 mM H₂O₂^[87]. (D) Schematic illustration of the evaluation of SERS performance using CJS components with 4-NTP as a signal molecule. (E-G) The localized electric field distribution of SiO₂@Au₍₃₀₀₎-Ag ECS CJS, SiO₂@Au₍₃₀₀₎-Ag NSM CJS, and SiO₂@Au₍₃₀₀₎-Ag HD CJS components, respectively, (H and I) SERS mapping at the 4-NTP peak of 1,332 cm^-1 (42 × 45 μm²) and SERS intensity distribution of 250 counts for SiO₂@Au₍₃₀₀₎-Ag_(30μL) composites^[110].