High-contrast en bloc staining of mouse whole-brain and human brain samples for EM-based connectomics.

Song, Kun; Feng, Zhihui; Helmstaedter, Moritz · Nat Methods · 2023

basic_science · Level V

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Abstract

Connectomes of human cortical gray matter require high-contrast homogeneously stained samples sized at least 2 mm on a side, and a mouse whole-brain connectome requires samples sized at least 5-10 mm on a side. Here we report en bloc staining and embedding protocols for these and other applications, removing a key obstacle for connectomic analyses at the mammalian whole-brain level.

Medical subject headings