Paraffin and Collodion Embedding

A Rapid Method of Paraffin Embedding

Agar-gelatin for embedding tissues prior to paraffin processing.

Benchmarks Fixed tissues often need to be arranged in a particular configuration , order, or orientation prior to processing for paraffin embedding. Although it is possible to arrange tissues after infiltration (during the final stages of paraffin embedding), it can be more convenient and practical to do this at the time of dissection or tissue collection. Agar has been the classical medium use...

Paraffin embedding technique for specimens obtained by vitrectomy.

Histologic and immunohistochemical preparation of pathologic fluids containing cellular material is difficult, because the techniques are limited by the amount of cellular material. Similar problems limit the preparation of vitrectomized material. Cytopreparatory techniques, including millipore filter and celloidin bag cell block, have been introduced since 1980 for diagnostic vitrectomies. The...

Quick and inexpensive paraffin-embedding method for dynamic bone formation analyses

We have developed a straightforward method that uses paraffin-embedded bone for undemineralized thin sectioning, which is amenable to subsequent dynamic bone formation measurements. Bone has stiffer material properties than paraffin, and therefore has hereforto usually been embedded in plastic blocks, cured and sectioned with a tungsten carbide knife to obtain mineralized bone sections for dyna...

Ultrafiltration through Collodion Membranes

It is obvious that the factors considered in this paper render data obtained by ultrafiltration open to criticism unless they are checked by other methods and precautions are taken for the elimination of the vitiating effects which have been described. As regards the mechanism of ultrafiltration, the view of a sieve-like action as most experimental evidence indicates, is adequate, if all the fa...