title: Spectrochemistry and artificial color modulation of Cypridina luminescence: indirect evidence for chemiexcitation of a neutral dioxetanone and emission from a neutral amide.
abstract: We demonstrate that the emission energy of the cypridinid oxyluciferin depends strongly on the polarity and, to a lesser extent, on the basicity of the medium. The emission color can be tuned by environment effects from violet to green. We also provide firm evidence that the natural system utilizes the neutral form of the emitter.
authors.affiliation: New York University Abu Dhabi, PO Box 129188, Abu Dhabi, UAE. pancenaumov@gmail.com
authors.forename: Panče
authors.initials: P
authors.lastname: Naumov
authors.forename: Chun
authors.initials: C
authors.lastname: Wu
authors.forename: Ya-Jun
authors.initials: YJ
authors.lastname: Liu
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Ohmiya
mesh_terms: D000577:Amides / Q000737:chemistry*; D000818:Animals; D003116:Color; D003445:Crustacea / Q000737:chemistry*; D006573:Heterocyclic Compounds, 1-Ring / Q000737:chemistry*; D007211:Indoles / Q000737:chemistry; D008163:Luminescent Measurements; D008968:Molecular Conformation; D011719:Pyrazines / Q000737:chemistry
chemical_list: D000577:Amides; D006573:Heterocyclic Compounds, 1-Ring; D007211:Indoles; D011719:Pyrazines; C541697:dioxetanone; C014730:oxyluciferin