Search Results for: Compound optical
natural dye the majority of natural dyes are derived from plant sources: roots , berries , bark , leaves , wood , fungi and lichens . [ ] most dyes are synthetic, i.e., are man-made from petrochemicals. other than pigmentation, they have a range of applications including organic dye lasers , [ ] optical
developments within immunology and chemotherapy. in paul ehrlich discovered that certain cells or organisms took up certain dyes selectively. he then reasoned that a sufficiently large dose could be injected to kill pathogenic microorganisms, if the dye did not affect other cells. erlich went on to use a compound...
https://en.wikipedia.org/wiki/Dye