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Persol is an Italian eyewear brand specializing in the manufacturing of sunglasses and optical frames. It is one of the oldest eyewear companies in the world and is owned by the Luxottica group. The name is derived from the Italian per il sole, meaning "for the sun". Formed in 1917 by Giuseppe Ratti, Persol originally catered to pilots and ...
Stains. Stains on fabrics are classified into three types: water-based stains and oil-based stains or a mix of both. Stain repellant fabrics. Fabrics are finished with certain finishes that do not allow unwanted stains or that will wash out in simple laundry. Chemicals
Trichrome staining. Trichrome staining is a histological staining method that uses two or more acid dyes in conjunction with a polyacid. Staining differentiates tissues by tinting them in contrasting colours. It increases the contrast of microscopic features in cells and tissues, which makes them easier to see when viewed through a microscope .
Its main attachment, the 3-inch Tough Stain Tool, offers strong spray and suction to lift stubborn stains from all types of fabrics, and you'll also get a HydroRinse Self-Cleaning Tool that'll ...
The Folex Instant Carpet Spot Remover isn't your average stain spray. It's fragrance-free, and non-magnetic to help keep spots from reappearing over time. It's non-flammable and safe to use in ...
Hoechst stains are part of a family of blue fluorescent dyes used to stain DNA. [1] [2] These bis-benzimides were originally developed by Hoechst AG, which numbered all their compounds so that the dye Hoechst 33342 is the 33,342nd compound made by the company. There are three related Hoechst stains: Hoechst 33258, Hoechst 33342, and Hoechst 34580.
Perls Prussian blue. In histology, histopathology, and clinical pathology, Perls Prussian blue is a commonly used method to detect the presence of iron in tissue or cell samples. [1] : 235 [2] [3] [4] Perls Prussian Blue derives its name from the German pathologist Max Perls (1843–1881), who described the technique in 1867. [2]
Masson's trichrome stain of rat airway. Connective tissue is stained blue, nuclei are stained dark red/purple, and cytoplasm is stained red/pink. Mouse skin stained with Masson's trichrome stain. Masson's trichrome is a three-colour staining procedure used in histology. The recipes emerged from Claude L. Pierre Masson 's (1880–1959) original ...