<p class="jove_content">Here, we present the Spatula Montevideo protocol for vitrifying mouse and sheep pre-implantation embryos, consisting of a homemade spatula and utilizing homemade solutions. Embryos are rapidly equilibrated in two cryoprotectant solutions of increasing concentration, loaded onto the spatula, immersed in liquid nitrogen, and finally sealed with a 0.5 mL straw.  </p>

spatula-montevideo-device-for-the-vitrification-of-mammalian-embryos

Spatula Montevideo Device for the Vitrification of Mammalian Embryos

This study describes an efficient and cost-effective vitrification method for mouse and sheep embryo cryopreservation known as the Spatula Montevideo ...

<p class='jove_content'>A method for fluorescent staining of fixed biological material with the specific DNA label methyl green is described. Methyl green is used in a diluted aqueous solution and is very resistant to photobleaching. Its far-red emission allows for deep specimen imaging, making it particularly adequate for whole embryos.</p>

application-dna-specific-stain-methyl-green-fluorescent-labeling

Application of the DNA-Specific Stain Methyl Green in the Fluorescent Labeling of Embryos

Methyl green has long been known as a histological stain with a specific affinity for DNA, although its fluorescent properties have remained unexplored ...

Institution - Institut Pasteur de Montevideo

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