Fig. 5: Fabricated probes for µMS.

a Silicon probe mounted on a PCB board. b Optical microscope images of the probes used during the ex vivo brain slice experiment. Close-up views (optical and SEM) of the tip are also shown to better visualize the solenoids. c Optical microscope image of the fabricated probe used during magnetic flux measurement. d Picture of the macrosolenoid probe used during the ex vivo brain slice experiment with a close-up view of the macrosolenoid. The microsolenoids used during the experiments are encircled in black