84 results about "Xanthene dye" patented technology

Systems and methods providing for the introduction of a dye, particularly a xanthene dye, and more particularly a rhodamine dye, to liquid anhydrous ammonia to discourage theft of the anhydrous ammonia and provide for leak detection in storage vessels. The dye will stain objects which come into contact with the liquid anhydrous ammonia allowing for the detection of such contact. Generally, the staining will be visible to the naked eye, but may also fluoresce when exposed to a particular light source such as ultra violet (UV) light.

The present invention relates to fluorescent dyes in general. The present invention provides a wide range of fluorescent dyes and kits containing the same, which are applicable for labeling a variety of biomolecules, cells and microorganisms. The present invention also provides various methods of using the fluorescent dyes for research and development, forensic identification, environmental studies, diagnosis, prognosis, and/or treatment of disease conditions.

Laundry detergent compositions comprise (a) surfactant, and (b) a hueing dye selected from triarylmethane blue and violet basic dyes, methine blue and violet basic dyes, anthraquinone blue and violet basic dyes, azo dyes basic blue 16, basic blue 65, basic blue 66 basic blue 67, basic blue 71, basic blue 159, basic violet 19, basic violet 35, basic violet 38, basic violet 48, oxazine dyes, basic blue 3, basic blue 75, basic blue 95, basic blue 122, basic blue 124, basic blue 141, Nile blue A and xanthene dye basic violet 10, and mixtures thereof.

The present invention provides inkjet inks, dye sets, and inkjet ink sets for use in inkjet printing methods. The inkjet inks and inkjet ink sets of the present invention can provide excellent photo-realistic print quality while achieving a high level of lightfastness. The inkjet ink comprises: a xanthene dye, and a metallized azo dye having the Formula (I). The inkjet ink set comprises: a magenta dye set comprising a xanthene dye, and a metallized azo dye having the Formula (I), at least one yellow ink comprising at least one yellow dye, and at least one cyan ink comprising at least one cyan dye. The present invention also provides a method of printing using the inkjet ink set of the present invention.

The invention relates to preparation and application of a hydrogen peroxide (H2O2) near-infrared fluorescent probe. A structural formula of the probe is as shown in the specification. The invention provides a preparation method for synthesizing the fluorescent probe by using a benzopyranitrile-xanthene dye, potassium carbonate, 4-(bromomethyl)benzeneboronic acid pinacol ester and other raw materials. The fluorescent probe is a hydrogen peroxide fluorescent probe with near-infrared emission and large Stoke shift. Firstly, the probe shows high sensitivity to H2O2, and fluorescence intensity is increased by 24 times. Secondly, the fluorescent probe shows high selectivity to H2O2, and is not affected by other active oxygen, active nitrogen, various ions and biothiols. Moreover, the fluorescentprobe reacts quickly with H2O2, and a response time is within 30 min. In addition, the fluorescent probe is applied to detection of hydrogen peroxide content in living cells.

A microorganism staining agent characterized in that an alkali substance and a diazo dye or xanthene dye are contained therein; and a method of detecting microorganisms with the use of the agent. There are provided a microorganism staining agent which resolves the problem of pretreatment posed by the conventional direct speculum method, being capable of staining microorganisms in shorter time; and a method of detecting microorganisms with the use of the agent.

Record material imageable with a laser beam. The material is a substrate such as paper or polyolefin film having provided on at least one surface thereof a coating containing a solvent-soluble or disperse-type dye suitable for coloring plastics or polymers. Typical solvent-soluble and disperse-type dye include monoazo dyes, diazo dyes, anthraquinone dyes, coumarin dyes, quinoline dyes, xanthene dyes, and naphthalimide dyes. The record material does not show visible dye specks in the coating layer on the substrate because the dye has a very small average particle size—less than 50 microns. No more than 1% of the dye particles are larger than 100 microns. Also, method for imaging a substrate using heat energy by applying heat energy to the described record material to bring about a temperature in the coating greater than the melting temperature of the dye, causing color to become visible in the record material.

The present invention provides a colored curable resin composition, comprising a colorant, resin, a polymerizable compound and a polymerization initiator, wherein the colorant contains xanthene dye and anthraquinone dye.

The invention provides a colorant dispersion liquid, a colored filter formed by the colorant dispersion liquid, and a display device comprising the colored filter. The colorant dispersion liquid is formed by dispersing a colorant in solvent under the action of a dispersing agent. The colorant contains xanthene dye and basically does not contain pigment. Content of the xanthene dye is 40%-100% by mass relative to total content of the colorant. The dispersing agent contains amidogen. Amine value of the dispersing agent is 0-5 mgKOH/g.

A colored composition of the present invention includes a dye compound having an anionic moiety including at least one of a structure represented by the following General Formula (A1), a structure represented by the following General Formula (A2), and a structure containing a boron atom, and a dye structure having a cationic moiety, in which the anionic moiety and the cationic moiety are bonded to each other via a covalent bond and present in the same molecule; a curable compound; and a solvent.

The invention discloses a colored photosensitive resin composition including a red coloring agent, an alkali soluble resin, photopolymerisable compound, a polymerization trigger and a solvent. The red coloring agent includes red pigment and xanthene dye indicated by structural formula 1. The alkaili soluble resin has an acid value of 30mg KOH/g to 170mg KOH/g. The photopolymerisable compound includes a compound indicated by structural formula 2. Besides, the solvent includes propylene glycol monomethyl ether and 4-hydroxy-4-methyl-2-pentanone. Thus, the composition has high developing rate and excellent inhibition of photosensitivity and adherence of pattern in a developing period and has storage stability with no decrease in photosensitivity and no increase in adherence. Therefore, a color filter made from the photopolymerisable compound can have extremely high comparison and light transmittence.

The invention discloses a fluorescent dye, a synthesis method and application thereof. The structure of the fluorescent dye is shown as formula (1). The invention provides a novel PH stable membrane permeable xanthene dye with biologically relevant application potentials. The fluorescent dye has high synthesis yield, can keep fluorescence open in an aqueous phase with PH of 4-10, and has very good photophysical and chemical properties, and the hydroxyl position of xanthene and the carboxyl position of spiro lactone can easily be modified to generate biologically related tracers. After modification of the carboxyl position of spiro lactone by hydrazine, a derivative (i.e. compound 5) can achieve significant selective recognition on mercury (shown as the attached figure), thus being able to serve as a very good mercury detection fluorescent probe. In addition, benefiting from a very wide range of PH application and good film permeability, the dye can be applied to lysosomes and other acidic organelles to serve as a detection and recognition gene, thus having important application value. (formula 1).

Provided is a color filter having excellent thermal resistance and color values. The colored curable resin composition contains a colorant (A), a resin (B), a polymerizable compound (C) and a polymerization initiator (D), the colorant (A) containing at least one selected from the group consisting of compounds represented by formula (a), xanthene dye, and salts of xanthene dye and cyanine dye [in the formula, k1, k2, k3 and k4 each independently represents an integer in the range 0-4, and 1<=k1+k2+k3+k4<=16. Xa-, Xb-, Xc- and Xd- each independently represents -CO3- or -SO3-. Aa<+>, Ab<+>, Ac<+> and Ad<+> each independently represents a sodium ion, a potassium ion, or a cation represented by formula (b). In formula (b), R100, R101, R102, and R103 each independently represents a hydrogen atom or a C1-30 hydrocarbon group.].

High sensitive organic dye-in-polymer (DIP) medium for write-once-read-many (WORM) optical discs with fluorescent reading. The medium consists of a fluorescent color means, capable of absorbing writing radiation produced by a laser, a compound capable of generating free radicals upon influence of heat produced by the writing radiation and a polymer capable of producing a translucent film enabling high quantum yield of the fluorescence induced in the color means. The color means can be selected from xanthene dyes of the eosine and rhodamine groups, acridine, oxazine, azine, peylene, violanthrone, cyanine, phtalocyanine, indigoide colors and porphyries. The free radicals generating compound can be chosen from the group of compounds comprising azo and diazoi compounds or peroxyde compounds. The film producing polymer can be selected from the group of compounds comprising cellulose ethers, vinyl resins or acrylic resins.

The present invention relates to a coloring photosensitive resin composition, a color filter, and an image display device including the same, and more specifically, the coloring photosensitive resin composition comprises a colorant, an alkali soluble resin, a photopolymerizable compound, a photopolymerization initiator and a solvent , Said colorant comprising at least one selected from the group consisting of C. I. Pigment Red 254, C. I. Pigment Red 177 and C. I. And one or more dyes selected from the group consisting of a xanthene dye represented by the following chemical formula 1 and an azo dye having a metal complex structure, and the photopolymerization initiator comprises a fluorenyl-based oxime ester photoinitiator contained in Chemical formula 2 or chemical formula 3.

Carboxamide-substituted xanthene dyes, reactive dyes, and the use of such dyes as a labeling reagent are disclosed. Specifically, a carboxamide-substituted dye of the formula (I)

is disclosed.