An optical filter includes: a transparent substrate; and an absorption layer on the transparent substrate, the absorption layer containing at least one dye (X) having a maximum absorption wavelength in 600 to 1000 nm. A laminate of the transparent substrate and the absorption layer satisfies all of the following characteristics (i-2) to (i-4): (i-2) a maximum internal transmittance in 700 to 850 nm is 35% or lower; (i-3) a difference between the maximum internal transmittance and a minimum internal transmittance in 700 to 850 nm is 20% or smaller; and (i-4) OD(A) and OD(B) satisfy the following relationship: OD(A)/OD(B)<0.07 where OD(A) is an average optical density of an internal transmittance in 500 to 600 nm and OD(B) is an average optical density of an internal transmittance in 700 to 850 nm.

A fluorescent dye, as well as a preparation method and uses thereof, wherein the fluorescent dye is sensitive and specific to viscosity and has low background fluorescence; it can also be used as a fluorescent activated and lighted probe used for fluorescent labeling, quantification or monitoring of protein, enzymes or nucleic acid.

Compounds useful as fluorescent or colored dyes that enable visual detection of biomolecules and other analytes are disclosed. The compounds comprise a phenylethynylnapthalene moiety represented by the following structure (I): ##STR00001## including salts thereof, wherein R.sup.1a, R.sup.1b, R.sup.1c, R.sup.1d, R.sup.1e, R.sup.1f, R.sup.2a, R.sup.2b, R.sup.2c, R.sup.2d, R.sup.2e, R.sup.2f, R.sup.2g, R.sup.2h, R.sup.2i, R.sup.2j, x and y are as defined herein. Methods associated with preparation and use of such compounds for visually detecting a biomolecule are also provided.

A yellow toner which provides, even in small amounts, a sharper color and brighter gloss, and higher reflection density than ever before, and which has excellent light resistance. The yellow toner contains a binder resin and a yellow colorant, wherein, as the yellow colorant, at least one of the compound A represented by the following general formula (1) and the compound B represented by the following general formula (2), and the compound C represented by the following formula (3) are contained: ##STR00001##

The present disclosure relates to a fluorogenic pH-sensitive dye and a film for detecting pH using the fluorogenic pH-sensitive dye on a polymer film. The fluorogenic pH-sensitive dye includes an aryl compound having a sulfonyl group (—SO.sub.2) and an agarose compound covalently bonded to the sulfonyl group (—SO.sub.2) of the aryl compound.

The present disclosure relates to a fluorogenic pH-sensitive dye and a film for detecting pH using the fluorogenic pH-sensitive dye on a polymer film. The fluorogenic pH-sensitive dye includes an aryl compound having a sulfonyl group (—SO.sub.2) and an agarose compound covalently bonded to the sulfonyl group (—SO.sub.2) of the aryl compound.

A composition includes two or more near infrared absorbing compounds having an absorption maximum in a wavelength range of 650 to 1000 nm and having a solubility of 0.1 mass % or lower in water at 23° C., in which the two or more near infrared absorbing compounds include a first near infrared absorbing compound having an absorption maximum in a wavelength range of 650 to 1000 nm, and a second near infrared absorbing compound having an absorption maximum in a wavelength range of 650 to 1000 nm which is shorter than the absorption maximum of the first near infrared absorbing compound, and a difference between the absorption maximum of the first near infrared absorbing compound and the absorption maximum of the second near infrared absorbing compound is 1 to 150 nm.

The present application relates processes that can be used to produce encapsulated benefit agents comprising a core and a shell that encapsulates said core, encapsulated benefit agents produced by such process and products comprising such encapsulated benefit agents as well as methods of making and using such products. Such process can be used to produce particles that offer the desired protection and release benefits when used in a varity of products.

According to the present teachings, compositions, kits, and methods for protein melt analysis are provided that utilizing one or more fluorophore dyes. In some embodiments, a method comprises preparing a sample by mixing at least one protein with two or more dyes, and applying a controlled heating, while recording the fluorescence emission of the sample. The methods can be used, for example, for screening conditions for optimized protein stability, screening for ligands that bind and enhance protein stability (e.g., protein-protein interactions), screening for mutations for enhanced stability, screening crystallization conditions for protein stability, screening storage conditions for protein stability, and screening conditions in which a protein will be used (e.g., production conditions, treatment conditions, etc.) for protein stability.

The present application discloses stilbene derivative compounds and phenyl-benzofuran compositions, useful in the manufacture of dye-sensitized solar cells and other similar technology.