Formaldehyde-hardened albumin as a non-penetrating embedding matrix for frozen and vibratome sectioning

xlomafota13 shared this article with you from Inoreader Formaldehyde-hardened albumin as a non-penetrating embedding matrix for frozen and vibratome sectioning Via histochem Acta Histochem. 2021 Dec 31;124(1):151838. doi: 10.1016/j.acthis.2021.151838. Online ahead of print. ABSTRACT In this paper, we describe a protocol for a non-penetrating embedding matrix that can be used for frozen or vibratome sectioning of various formaldehyde-fixed tissue specimens. In our experiments, we wanted to prepare thin frozen sections from miniature specimens for fluorescent staining. As we could not achieve satisfactory results with any of the previously publish ed methods, we have tried to modify the existing protocols, and systematically evaluated the effect of these modifications on the properties of the embedding matrix. The resulting protocol is simple, the matrix gets firmly attached to the tissues, does not cause autofluorescence and enables preparing extremely thin frozen sections. The matrix can be used for 1, embedding miniature specimens from problematic tissues to enable cutting very thin frozen sections, 2, grouping multiple specimens into one large block for simultaneous processing, and 3, dispersing single cells and preparing cell blocks for frozen sectioning. PMID:34979375 | DOI:10.1016/j.acthis.2021.151838 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.