Micropreparations set 4 (25 pieces)

[tab name='Description']

Euromex offers both teachers and microscopy amateurs a wide range of quality preparation sets. These sets can be used directly in biology lessons or as an introduction to zoology and botany.

Series with 25 micropreparations for human & mammalian histology, zoology and botany. Each set contains a variety of micro preparations (see details in next tab) All micro preparations are supplied in a plastic preparation box for 25 preparations

This set contains:

Histology

SH.1060 Tendon, connective tissue of dog, ls
SH.1075 Human skin with sweat gland section
SH.1330 Rabbit testis, cs
SH.1340 Rabbit ovary, ovary with developed eggs
SH. 1360 Sperm, sperm cells of human
SH.1490 Retina, retina of rabbit, section

Zoology

SZ.1522 Slipper animal, Paramecium, conjugative, wm
SZ.1524 Slippered insect in division
SZ.1540 Whipped animal, Trachelomonas, wm
SZ.1585 Freshwater polyp with endoderm
SZ.1710 Honey bee, Apis mellifica, faceted eye, cs
SZ.1720 Mosquito, Culex pipiens, larva, wm
SZ.1724 Chromosomes, fruit fly, drosophila, salivary gland, wm
SZ.1810 Mussel, Mya arenaria, gills, cs
SZ.1860 Lancet fish, gills and intestines

Botany< /p>

SB.2015 Buttercup, Ranunculus, root, cs
SB.2076 Linden tree, Tilia, 1, 2 and 3 year stem cs
SB.2080 Pine, wooden stem, ls
SB .2140 Wheat, Triticum aestivum, leaf, cs
SB.2150 Monocot/dicot leaf of maize and privet, cs
SB.2230 Pine, Male cone
SB.2232 Pine, Pinus, female cone, ls
SB.2315 Iron fern, Cyrtomium, prothallium with young sporophyte, wm
SB.2320 Cyrtomium, fern, leaf with sporangia
SB.2384 Ball algae, Volvox sp., wm

– –––––– ––––––––––––––––––––––––––––––––––––––––––––– ––––––

Abbreviations
cs = cross section
ls = longitudinal section
wm = whole specimen

––––––– ––– ––––––––––––––––––––––––––––––––––––––––––––––––

[tab name='Technical Specifications']

How are cells stained and samples prepared?

Cell staining techniques and preparation depend on the type of stain and analysis method. One or more of the following procedures may be necessary to prepare a sample:
• Permeabilization - treatment of cells, usually with a mild surfactant that dissolves cell membranes to allow larger dye molecules to enter the cell

• Fixation - serves to "fix" or maintain cell or tissue morphology through the perparation process. This process can include several steps, but most fixation procedures involve adding a chemical fixative that creates chemical bonds between proteins to increase their strength. Common fixatives include formaldehyde, ethanol, methanol, and/or picric acid

• Mounting - involves attaching samples to a slide for observation and analysis. Cells can be grown directly on the slide or single cells can be applied to a slide using sterile techniques. Thin sections (slices) of material - such as tissue - can also be placed on a microscope slide for observation

• Staining - the application of staining agent to cells, tissues, components, or metabolic processes of cells to color. This method may include immersing the sample (before or after fixing or mounting) in a dye solution and then rinsing and observing the sample under a microscope. Some dyes require the use of an etchant, which chemically reacts with the colorant to produce an insoluble colored result. The etched dye will remain on/in the sample when the excess dye solution is rinsed away