The novel intercalating fluorescent compounds of exemplary embodiments of the present invention for analyzing nucleic acids, etc. have excellent intercalating efficiency with nucleic acids such as DNA and RNA of biomaterials, and may not only continuously maintain fluorescence properties and efficiency, but also have excellent effects even in terms of storage stability such as temperature and moisture, etc. and biosafety. In addition, the fluorescent compounds have various advantages capable of being dissolved in distilled water, which is a solvent harmless to the human body, and being applied to a wide range of analysis without being limited to the analysis of specific cells and living tissues.

Cofactor analogues for methyltransferases are disclosed. The compounds are represented by formula (I) wherein R1 is COOH or COO—; X is an organic or inorganic anion carrying one or more negative charges; Y and Y′ are H, or an alkyl; R2 is NH.sub.2, NHBoc, or H; and Z is S or Se. R comprises a carbon-carbon double bond, carbon-oxygen double bond, carbon-sulfur double bond, carbon-nitrogen double bond, a carbon-carbon triple bond, carbon-nitrogen triple bond, an aromatic carbocyclic or heterocyclic system in β-position to the sulfonium center, unsaturated c-c bond, or c-heteroatom bond where the heteroatom is O, N, S.

The present invention provides dioxetane-based chemiluminescence probes, more specifically fluorophore-tethered dioxetane-based chemiluminescence probes and compositions thereof. The chemiluminescence probes disclosed are useful for both diagnostics and in vivo imaging.

The present invention provides dioxetane-based chemiluminescence probes, more specifically fluorophore-tethered dioxetane-based chemiluminescence probes and compositions thereof. The chemiluminescence probes disclosed are useful for both diagnostics and in vivo imaging.

Provided are a resin composition including a coloring agent represented by Formula 1 and a resin; a liquid composition; a coloring agent compound; and an optical material. In Formula 1, R.sup.1 and R.sup.2 each independently represent an alkyl group or an aryl group, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 each independently represent a hydrogen atom or a substituent, and R.sup.5 and R.sup.6 may be bonded to each other to form a 6-membered ring.

##STR00001##

The invention relates to a photopolymer formulation comprising a polyol component, a polyisocyanate component, a writing monomer, and a photoinitiator, containing a coinitiator and a dye having the formula F An, where F stands for a cationic dye and An″ stands for an anion, wherein the dye having the formula F An comprises a water absorption of =5%. The invention further relates to a holographic medium, in particular in the form of a film, containing a photopolymer formulation according to the invention, to the use of such a medium for recording holograms, and to a special dye that can be used in the photopolymer formulation according to the invention.

The invention relates to a photopolymer formulation comprising a polyol component, a polyisocyanate component, a writing monomer, and a photoinitiator, containing a coinitiator and a dye having the formula F An, where F stands for a cationic dye and An″ stands for an anion, wherein the dye having the formula F An comprises a water absorption of =5%. The invention further relates to a holographic medium, in particular in the form of a film, containing a photopolymer formulation according to the invention, to the use of such a medium for recording holograms, and to a special dye that can be used in the photopolymer formulation according to the invention.

Provided are: a photocurable ink composition including particles of a squarylium coloring agent represented by Formula (1) a radically polymerizable monomer, a radical polymerization initiator, and a coloring agent sensitizer, in which a volume average particle diameter of the particles of the squarylium coloring agent is 10 nm to 400 nm (in Formula (1), ring A and ring B: an aromatic ring or a heteroaromatic ring; X.sup.A, X.sup.B, G.sup.A, and G.sup.B: monovalent substituent; kA=integer of 0 to nA; kB=integer of 0 to nB; nA: an integer that is a maximum number of G.sup.A the ring A can have as its substituent; and nB: an integer that is a maximum number of G.sup.B the ring B can have as its substituent); and an image recording method.

##STR00001##

Provided are a fluorescent dye and a preparation process and use thereof. The fluorescent dye is able to emit a long wavelength, is sensitive and specific to viscosity, and is used for a wide range of purposes, such as viscosity testing, fluorescent labeling, quantification or detection of proteins, enzymes or nucleic acids. In addition, it can be used as a fluorescent-activated probe.

Provided are a fluorescent dye and a preparation process and use thereof. The fluorescent dye is able to emit a long wavelength, is sensitive and specific to viscosity, and is used for a wide range of purposes, such as viscosity testing, fluorescent labeling, quantification or detection of proteins, enzymes or nucleic acids. In addition, it can be used as a fluorescent-activated probe.