59 results about "Merocyanine dye" patented technology

A photoelectric conversion device includes, in the following order: a first electrode; an electron blocking layer; a photoelectric conversion layer containing a merocyanine dye; a hole blocking layer; and a transparent electrode as a second electrode, and an absorption maximum wavelength in a thin film absorption spectrum of the photoelectric conversion layer containing a merocyanine dye is within a range of from 400 to 520 nm.

Embodiments of the present invention provide a staining solution and of method of using the staining solution for selectively detecting proteins that contain two or more α-helical transmembrane domains. The staining solution comprises a lipophilic dyes and at least about a 30% hydrophobic solvent. The dyes of the present are represented by the general formula A-B-E wherein A is a nitrogen heterocycle, B is a bridge moiety and E is an electron pair accepting moiety that comprises either a carbonyl or nitrogen atom. In one embodiment these lipophilic dyes are merocyanine dye, a cyanine dye, a styryl dye or a carbazolylvinyl dye.

According to the present invention there is provided a method for making lithographic printing plates including the following stepsa) preparing a heat mode imaging element having on a lithographic base with a hydrophilic surface a first layer including a polymer, soluble in an aqueous alkaline solution and a top layer on the same side of the lithographic base as the first layer which top layer is sensitive to IR-radiation and is unpenetrable for an alkaline developer containing SiO2 as silicates;b) exposing imagewise said heat mode imaging element to IR-radiation;c) developing said imagewise exposed heat mode imaging element with said alkaline developer so that the exposed areas of the top layer and the underlying areas of the first layer are dissolved and the unexposed areas of the first layer remain undissolved characterized in that said top layer includes an IR-dye in an amount between 1 and 100% by weight of the total amount of said IR-sensitive top layer selected from the group consisting of indoaniline dyes, cyanine dyes, merocyanine dyes, oxonol dyes, porphine derivatives, anthraquinone dyes, merostyryl dyes, pyrylium compounds, diphenyl and triphenyl azo compounds and squarylium derivatives.

The present invention relates to a method for selecting pharmacological compounds for selective inhibition of cancer cells comprising identifying a compound, determining the reduction potential (E_R) of the compound, and selecting the compound which has a reduction potential from −1.1 to −0.8 volts. The invention also relates to a pharmacological compound comprising at least one cyanine dye or merocyanine dye, wherein the dye has at least one cationic substituent, wherein the dye has a reduction potential of from—1.1 to 0.8 volts, and wherein the pharmacological compound demonstrates selective inhibition of cancer cells.

Disclosed are cyanine dyes that are useful for labelling and detecting biological and other materials. The dyes are of formula (I):

in which at least one of groups R¹, R², R³, R⁴, R⁵, R⁶, R⁷, R⁸, R⁹, R¹⁰ R¹¹, R¹², R¹³ and R¹⁴ is -L-M or -L-P, where L is a linking group, M is a target bonding group and P is a conjugated component, and at least one of groups R³, R⁴, R⁵, R⁶, R⁷, R⁸, R⁹ and R¹⁰ comprises fluorine. The use of cyanine dyes substituted by fluorine and having additional substitution with three or more sulphonic acid groups for labelling biological target molecules results in a labelled product in which there is reduced dye-dye aggregation and improved photostability, compared with cyanine dyes having no such substitutions. The dyes of the present invention are particularly useful in assays involving fluorescence detection where continual or repeated excitation is a requirement, for example in kinetic studies, or in microarray analyses where microarray slides may need to be reanalysed over a period of days.

An imaging device, comprising: an infrared light absorption layer including a cyanine dye represented by Chemical Formula (A) below: wherein R₁ and R₂ are selected from the group consisting of: a chain alkyl group,a cyclic alkyl group, a phenyl group, and a benzyl group; wherein the chain alkyl group and the cyclic alkyl group including at least one group member selected from the group consisting of: 1) a first group having one or more hydrogen atoms in a first alkyl group substituted with at least one functional group selected from the group consisting of: a halogen atom, an alkoxy group, an alkanoloxy group, an amino group, a thiol group, and a mercapto group; 2) a second group having at least one reactive group selected from the group consisting of: a vinyl group, an acrylic group, a carbonyl group, a carboxyl group, an alkenyl group, an alkenyloxy group, an alkoxycarbonyl group, a nitrile group, a carboxyl group, a carbonyl group, a sulfonyl group, a sulfamoyl group, a carbamoyl group, a benzoyloxy group, and a cyano group,wherein the reactive group is any one of introduced at a terminal alkyl group of at least one of the chain alkyl group and the cyclic alkyl group and positioned two or more carbon atoms away from an indoline ring; 3)an unsubstituted chain alkyl group; and 4) an unsubstituted cyclic alkyl group; and wherein X⁻ represents an anion.

Disclosed is a dye for dye-sensitized solar cells that is composed of a compound classified as a merocyanine dye, has a structure wherein electron donor units and electron acceptor units are joined with a conjugated double bond, and has excellent photoelectric conversion and durability. With the dye, it is possible to provide a semiconductor electrode that is sensitized by the dye as well as a dye-sensitized solar cell made by using the semiconductor electrode.

The present invention relates to a compound for photoresist, selected from the group consisting of a compound comprising an oxonol dye skeleton, a cyanine dye, a styryl dye, a compound comprising a merocyanine dye skeleton, a compound comprising a phthalocyanine dye skeleton, an azo compound, and a complex compound of an azo compound and a metal ion. The present invention further provides a photoresist liquid comprising at least one of the compound for photoresist and a method of etching a surface being processed using the photoresist liquid.

The present invention concerns a method of measuring the concentration of an analyte in an aqueous solution that comprises the steps of: obtaining an aqueous solution containing an analyte, providing a cyanine indicator, placing the aqueous solution in fluid communication with the cyanine indicator, measuring a detectable property change of the cyanine indicator, and comparing the detectable property change of the cyanine indicator with a calibration curve of the detectable property change of samples containing known concentrations of the analyte to determine the concentration of the analyte, wherein the detectable property change is proportional to the concentration of the analyte in said aqueous solution.

The present invention provides an IR-absorbing macrocyclic cyanine dye, wherein said dye comprises at least one moiety for reducing intermolecular interactions, thereby minimizing absorption of visible light. Dyes of this type are especially suitable for use in netpage and Hyperlabel systems.

Methods and apparatus are disclosed regarding photoelectrochemical solar cells formed using inkjet printing and nanocomposite organic-inorganic materials, such as for converting solar energy into electricity. An exemplary solid photoelectrochemical solar cell formation includes thin layers of nanocomposite organic-inorganic materials. A specific exemplary solid photoelectrochemical solar cell may include: a negative electrode comprising a transparent electroconductive glass plate; a thin transparent film of mesoporous nanocrystalline titanium dioxide of controlled thickness above the negative electrode, formed by dip-coating, spin-coating or inkjet printing, and having a photosensitizer dye comprising a ruthenium organometallic complex, a merocyanine dye, or a hemicyanine dye; a layer of a solid gel electrolyte formed above the titanium dioxide layer and including a nanocomposite organic-inorganic material and a redox couple; and a positive electrode comprising a second electroconductive glass plate having a thin layer of deposited electrocatalyst made of platinum, carbon, or both, in the form of nanostructures, including nanoparticles, nanotubes, conjugated conductive polymers, or their mixtures.

The present invention provides an IR-absorbing dye of formula (I) or (II)

wherein

• R¹⁰, R¹³, R²⁰, R²³, R³⁰, R³³, R⁴⁰ and R⁴³ are independently selected from a C_1-12 alkyl group bearing a hydrophilic or hydrophilizable group;
• R¹¹, R¹², R²¹, R²², R³¹, R³², R⁴¹ and R⁴² are independently selected from H or a C_1-30 hydrocarbyl group, or each of R¹¹/R¹², R²¹/R²², R³¹/R³², and R⁴¹/R⁴² are together joined to form a C_3-30 hydrocarbylene group;
• M is selected from Si(A¹)(A²), Ge(A¹)(A²), Ga(A¹), Mg, Al(A¹), TiO, Ti(A¹)(A²), ZrO, Zr(A¹)(A²), VO, V(A¹)(A²), Mn, Mn(A¹), Fe, Fe(A¹), Co, Ni, Cu, Zn, Sn, Sn(A¹)(A²), Pb, Pb(A¹)(A²), Pd and Pt;
• A¹ and A² are axial ligands, which may be the same or different, and are selected from —OH, halogen, —OR³, a hydrophilic ligand and/or a ligand suitable for reducing intermolecular interactions;
• R³ is a selected from C_1-12 alkyl, C_5-12 aryl, C_5-12 arylalkyl or Si(R^x)(R^y)(R^z); and
• R^x, R^y and R^z may be the same or different and are selected from C_1-12 alkyl, C_5-12 aryl, C_5-12 arylalkyl, C_1-12 alkoxy, C_5-12 aryloxy or C_5-12 arylalkoxy. Dyes of this type are especially suitable for use in netpage and Hyperlabel systems.

An optical storage medium that is compatible with a semiconductor laser having a beam with a short wavelength (i.e. between 500 and 700 nm), which includes a highly stable dye layer. The optical storage medium of the invention includes an optically transparent substrate having at least one major surface on which at least one groove is formed, a storage layer on the substrate and a metal reflection layer on the storage layer. The storage layer contains a composite consisting of from about 3 weight % to about 30 weight % of a metal complex compound and a cyanine dye. The cyanine dye absorbs light in the wavelength between 500 and 700 nm, and has an asymmetric molecular structure. The optical storage medium of the invention reduces jitter components in high density data storage and conforms to DVD specifications.

A radiographic silver halide film material and a radiographic screen/film combination has been disclosed, said material having in at least one light-sensitive layer thereof an emulsion comprising {111} tabular silver halide grains rich in silver bromide, spectrally sensitive to irradiation in the wavelength range between 540 and 555 nm by the presence of a combination of at least one J-aggregating spectrally sensitizing cyanine dye according to the formula (I) and of at least one additional cyanine dye providing a shift of maximum absorption wavelength of said combination of less than 10 nm versus in the absence thereof, wherein said additional cyanine dye is at least one monomethine cyanine dye according to the formula (II), essentially having a solubilizing group or a latent solubilizing group, said dyes having been given in the description and in the claims of the present invention.

The present invention provides a method of minimizing absorption of visible light in an ink composition comprising an IR-absorbing metal cyanine dye, said method comprising preselecting said dye such that said metal has at least one axial ligand bound thereto, wherein said axial ligand comprises a moiety suitable for reducing intermolecular interactions between adjacent dye molecules. The method is especially suitable for use in connection with netpage and Hyperlabel systems.