Non invasive in vivo investigation of hepatobiliary structure and function in STII medaka (Oryzias latipes): methodology and applications

Table 2 Endogenous fluorophores.

	Ex (nm)	Em (nm)
Flavoproteins: flavin adenine dinucleotide (FAD), flavin mononucleotide (FMN)	450	550
Pyridine Nucleotides: nicotinamide dinucleotide (NAD), nicotinamide dinucleotide phosphate (NADP), the reduced states fluoresce – NADPH, NADH	336	450
Tryptophan	295	329
Hydroxykynurenine glucoside (3-HGK)	520	550
Serotonin (5-HT)	290/366	340-440/510
5 HIAA	300	350
α-napthol	340	460
Bilirubin	435	500
Protoporphyrin	424/408	594/630
Collagen I	340/500	410/520
Elastin	330	405
Lipofuscin	300	420
Vitamin A	345	490
Vitamin E	295	335
Thiamin (B1)	366	430
Riboflavin (B2)	440	514
Salicylic Acid	319	408

Given are some of the known endogenous fluorophores and their excitation (Ex) and emission (Em) wavelength(s).