Figure 3:

Small molecule detection has various approaches. (A) Ko uses a two-part colloid to enhance the SERS signal with Au and isolate the particles using magnetic beads to detect Aflatoxin B1 [173] and (B) Li places the Au shell directly on an orange peel to enhance the signal of pesticide [174]. Reproduced with permission from Refs. [173], [174].

© De Gruyter