Grubb Lab

Brain ultrastructure and the neurovascular unit

Volume electron microscopy of the cerebral microvasculature — precapillary sphincters, pericytes, astrocyte endfeet and the brain's waste-clearance pathway. Open tools and open data for identifying cells in large EM volumes.

Tools

Interactive

MICrONS Cell Identification Tool

Explore the MICrONS minnie65 mouse visual cortex dataset. Jump to any coordinate, identify the nearest cell and its predicted type, work through a guided ultrastructural decision tree, and open the result directly in Neuroglancer with the segmentation and nucleus pre-selected. Includes cortical layer estimation, traced vasculature, bulk filtering and Excel export.

Open the tool →

About

Søren Grubb is a neuroscientist and Educational Manager at Neuroscience Academy Denmark, with a background in neurovascular research and cardiac electrophysiology.

This site hosts research tools built on open, publicly licensed electron microscopy datasets. The work here is carried out independently of, and in addition to, that role.

Selected publications

Data & attribution

Cell positions, segmentation and type predictions come from the MICrONS minnie65 mouse visual cortex dataset, released under CC-BY by the MICrONS Consortium (Nature 640, 435–447, 2025). Hand-verified identifications, traced vessel outlines and traced pia/white-matter surfaces are original work from this lab.