The present disclosure relates to a novel merocyanine-based compound capable of labeling biomolecules by intercalating biomolecules, and to a dye, kit and contrast medium composition for labelling biomolecules comprising the same.

The present disclosure relates to a novel merocyanine-based compound capable of labeling biomolecules by intercalating biomolecules, and to a dye, kit and contrast medium composition for labelling biomolecules comprising the same.

A compound is represented by the following formula (1).

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In the compound represented by Formula (1), at least one of R.sub.1 to R.sub.24 is a group particularly high electron withdrawing property, such as a sulfonic acid group and a carboxylic acid group or a group having the next highest electron withdrawing property to the sulfonic acid group and the carboxylic acid group, such as a halogen atom.

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.

An absorbent article having a topsheet, a backsheet, an absorbent core disposed at least partially between the topsheet and the backsheet, and a wetness indicating composition is provided. The wetness indicating composition includes a colorant and a colorant fastener. The colorant has a first color state, wherein the first color state is associated with a first state of the wetness indicating composition. The colorant has a second, different color state, wherein the second color state is associated with a second state of the wetness indicating composition. The wetness indicating composition is disposed on the absorbent article in a plurality of discrete graphics, wherein each of the plurality of discrete graphics has an area of between about 0.02 cm.sup.2 and about 25 cm.sup.2.

An absorbent article having a topsheet, a backsheet, an absorbent core disposed at least partially between the topsheet and the backsheet, and a wetness indicating composition is provided. The wetness indicating composition includes a colorant and a colorant fastener. The colorant has a first color state, wherein the first color state is associated with a first state of the wetness indicating composition. The colorant has a second, different color state, wherein the second color state is associated with a second state of the wetness indicating composition. The wetness indicating composition is disposed on the absorbent article in a plurality of discrete graphics, wherein each of the plurality of discrete graphics has an area of between about 0.02 cm.sup.2 and about 25 cm.sup.2.

Provided is an infrared cut filter including: an infrared absorbing layer of a transparent resin containing an infrared absorber; and a selected wavelength cut layer stacked on the infrared absorbing layer, wherein the following requirements are satisfied. (i) In a spectral transmittance curve for an incident angle of 0, an average transmittance in a 450-600 nm range is 80% or more, a transmittance in a 700-1200 nm range is 2.0% or less, and D.sub.0 represented by the following expression is less than 0.04. D.sub.0 (%/nm)=(Tmax.Math.0Tmin.Math.0)/((Tmax.Math.0)(Tmin.Math.0)) (ii) wherein a spectrum transmittance curve for an incident angle of 30, an average transmittance in the 450 to 600 nm range is 80% or more, a transmittance in the 700-1200 nm range is 2.0% or less, and D.sub.30 represented by the following expression is less than 0.04. D.sub.30 (%/nm)=(Tmax.Math.30Tmin.Math.30)/((Tmax.Math.30)(Tmin.Math.30))

Provided is an infrared cut filter including: an infrared absorbing layer of a transparent resin containing an infrared absorber; and a selected wavelength cut layer stacked on the infrared absorbing layer, wherein the following requirements are satisfied. (i) In a spectral transmittance curve for an incident angle of 0, an average transmittance in a 450-600 nm range is 80% or more, a transmittance in a 700-1200 nm range is 2.0% or less, and D.sub.0 represented by the following expression is less than 0.04. D.sub.0 (%/nm)=(Tmax.Math.0Tmin.Math.0)/((Tmax.Math.0)(Tmin.Math.0)) (ii) wherein a spectrum transmittance curve for an incident angle of 30, an average transmittance in the 450 to 600 nm range is 80% or more, a transmittance in the 700-1200 nm range is 2.0% or less, and D.sub.30 represented by the following expression is less than 0.04. D.sub.30 (%/nm)=(Tmax.Math.30Tmin.Math.30)/((Tmax.Math.30)(Tmin.Math.30))

A near infrared dye comprising a counterion and a structure of Formula I

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wherein the at least one of R.sub.1 and R.sub.2 are selected from dibenzazepinyl, thienyldibenzazepine, bithienyldibenzazepine, thienodibenzazepine, dihydrodibenzazepinyl, thienyldihydrodibenzazepine, bithienyldihydrodibenzazepine, and thienodihydrodibenzazepine, and X, R, R.sub.3-R.sub.4, R.sub.19, R.sub.20 and R.sub.22-R.sub.29 are as disclosed herein. Materials and compositions comprising the SWIR dye can absorb light at a wavelength of 800 nm to 1400 nm and release the energy in the form of light (fluorescence) or heat (non-radiative). The dyes can also convert the absorbed light to heat and ultrasound waves via the photoacoustic effect. The photoacoustic effect can be used in photoacoustic tomography to image biological materials or processes. Methods for synthesizing the SWIR dyes and materials comprising the same are also disclosed.