Mulcahey et al. with Hajime Takano at The Children’s Hospital of Philadelphia used the NeuroNexus SmartBox to record for hours at a time both with standard probes and a customized adaptor to connect their graphene arrays. NeuroNexus A4x8-5mm-200-400-177-A32 probes were coated with DiI and inserted into the dorsal hippocampus, CA1 of 8-12 week old C57BL6 mice to record seizures. The silicon probes provided layer-specific resolution for multi-unit activity (MUA) and local field potentials (LFP).