Silver coated porous silicon microarray SERS platform for detecting aflatoxin B1 fumonisin B1 and ochratoxin A

Materials

Boron-doped Si wafers, <100> face orientation with 0.8–1.0 mΩ cm resistivity, were purchased from Siltronix (France). Methanol (MeOH), hydrofluoric acid (48%), absolute ethanol, AgNO₃ (≥99%), DTNB ( ≥ 98%), hydrogen peroxide…