fixative


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fixative

1. a fluid usually consisting of a transparent resin, such as shellac, dissolved in alcohol and sprayed over drawings to prevent smudging
2. Cytology a fluid, such as formaldehyde or ethanol, that fixes tissues and cells for microscopic study
3. a substance added to a liquid, such as a perfume, to make it less volatile

fixative

[′fik·səd·iv]
(materials)
A chemical or a mixture of chemicals used to treat biological specimens before preservation so as to retain a reasonable facsimile of their appearance when alive.
A substance used to increase the durability of another substance; used to fix dye mordants, hold textile dyes and pigments, and slow the rate of perfume evaporation. Also known as fixing agent.
References in periodicals archive ?
The cell block is prepared from the liquid fixative deposit by adding equal amount of cell block fixative (10% formalin and 95% alcohol), got during MLBC procedure.
Eraser pencils, blending stumps, brushes, kneaded erasers, spray fixative.
The first, of course, is the solution: why not substitute some other fixative agent which doesn't damage nucleic acids for formalin?
61) While some of the effects associated with fixative delivery method may be antigen-specific, (37) antigen retrieval techniques may be an additional confounding variable.
The selection of the fixative is particularly important for samples that are intended for histological processing.
NNL scientist Jeremy Edwards said the atomization technology "offers a game-changing delivery mechanism for reagents, fixatives and decontaminants.
Bufferized OsO4 is one of the most important fixatives for the stabilization of various tissues.
The concept of wet fixed smear is that the slides should be immediately immersed in the cytological fixative (95% ethanol).
The fructan-enriched snack had an overall acceptability score that was similar to the traditional snack flavored with a fatty fixative agent.
Previous firm Aramark sold around 1,000 items including denture fixative, biscuits, crisps, cans of soft drink, toothpaste and tobacco.
After transcardial perfusion with fixative, eyes were removed, embedded in epoxy resin, sectioned, and mounted.