US in WW2
Were dyes used during biblical days?
Asked in Genetics
How are fluorescent dyes used to color-code DNA during DNA sequencing?
Asked in Biochemistry
What types of dyes are used for different textile fibers Why?
Asked in Food & Cooking
When were napkins used during a meal in biblical times?
What are the two principal functions of dyes in media?
Asked in Microbiology
What types of dyes are used for negative staining?
Asked in Science
What is applied to microorganisms to make them easier to observe?
Asked in Manufacturing
What are the raw material for manufacture of azo dyes?
Asked in Biology, Microbiology
Can dyes other than methylene blue be used for direct staining?
Asked in Hair Dye
What was ancient roman hair dye made of?
A mix of animal fat andbeechwoodash was used for red dye.Saffronwas used for gold/blond dye. Leeches fermented invinegarfor 40 days were suggested for black dye. Henna was also used. Dyes were applied throughpowders, gels and bleach. Dyes were popular among women, but whenappliedfrequently, they made the hair weaker. Christianwriter Tertullian wrote about how dyes were harmful for theheadand how they burnt the scalp.