SERS active Ag encapsulated Fe@SiO2 nanorods in electromagnetic wave absorption and crystal violet detection

Iron nanorods are prepared by thermal annealing of borohydride reduced product of FeCl3 and its surface has been modified by SiO2 followed by Ag. These Ag encapsulated Fe@SiO2 nanostructures exhibit ferromagnetic and electromagnetic wave absorption properties as well as SERS activity.