FITC (389 g/mol) was one of the first dyes which was used for fluorescence microscopy and served as an origin for further fluorescent dyes like Alexa FluorÂ®488. Its fluorescence activity is due to its large conjugated aromatic electron system, which is excited by light in the blue spectrum.
Body odor is not catching. If the body odor is due to an infection, the infection may be contagious, such as a sexually transmitted disease. Inherited conditions may be passed on to children through the genes.ody odor is the term used for any unpleasant smell associated with a person's body. People usually associate body odor with sweat, but sweat by itself does not give off an odor.
Body odor is primarily caused when sweat produced by apocrine glands is broken down by bacteria that live on the surface of the skin. It contains proteins and lipids that bacteria love to feed on. Each are found at varying degrees in sweat, and each have distinct smells that we most often associate with body odor.