The present invention relates to: an active ray-curable inkjet ink which has high gloss and is capable of forming an image that is suppressed in gloss difference between itself and a base; and an image forming method which uses this active ray-curable inkjet ink. An active ray-curable inkjet ink according to the present invention contains a photopolymerizable compound, a photoinitiator and a crystalline gelling agent, and is capable of undergoing a sol-gel phase transition. This active ray-curable inkjet ink is characterized by additionally containing a fluorescent bleaching agent.

The invention relates to novel fluorescent whitening agents, compositions or mixtures thereof with known fluorescent whitening agents, their preparation, and their use. The novel fluorescent whitening agents contain three structural subunits derived from 4,4-diamino-2,2-stilbenedisulfonic acid. The novel compounds and their mixtures with known FWAs show very good effectiveness as fluorescent whitening agents for cellulosic materials, in particular for paper.

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

A compound comprises at least one fluorescent moiety covalently bound to at least one second moiety selected from the group consisting of leuco moieties and chromophore moieties.

The invention is in the field of resveratrol derivative compounds and compositions, and methods for synthesizing same.

An organic light-emitting device includes: a first electrode, a second electrode facing the first electrode, and an organic layer between the first electrode and the second electrode, the organic layer including: an emission layer, an electron transport region between the second electrode and the emission layer, and a mixed layer between the emission layer and the electron transport region, the mixed layer including a first material and a second material, the first material and the second material being selected from a pyrrolidine-based compound and a C.sub.10-C.sub.30 polycyclicaromatic hydrocarbon-based compound, and a triplet energy Eg.sub.T1 of at least one selected from the first material and the second material being 2.2 eV or greater.

Fluorescence quenching nitrodiarylethene analogs are useful in oligonucleotide conjugates and probes. These analogs, whose absorption spectra are substantially blue-shifted relatively to emission spectra of common fluorophores (such as fluorescein), do not need to rely on spectral overlap of quencher absorbance and fluorophore's emission for their quenching abilities. The oligonucleotide-quencher conjugates may be used in detection methods for nucleic acid targets.

The present application relates to compounds of a formula (I), to the use thereof in organic electroluminescent devices, and to processes for preparing these compounds.

Disclosed herein is a fluorescent compound represented by the following general formula and having fluorescence characteristics that vary in the presence of a subject substance,

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wherein R.sub.1 and R.sub.2 each independently represent a carboxyl group, or a substituent containing a carboxyl group, and R.sub.3 and R.sub.4 each independently represent a hydrogen atom, an alkyl group, an alkoxy group, a halogen atom, a hydroxyl group, a carboxyl group, or a substituent containing a carboxyl group.

The near infrared absorbing curable composition includes: a compound represented by Formula (1); and a compound having a crosslinking group. In Formula (1), X.sup.1 and X.sup.2 each independently represent O, S, or a dicyanomethylene group, and A and B each independently represent a group represented by Formula (2). In Formula (2), a wave line represents a binding site of Formula (1), Y.sub.S represents a group having active hydrogen, A1 represents an aromatic hydrocarbon ring or an aromatic heterocycle, R.sub.Z represents a substituent, m1 represents an integer of 0 to mA, mA represents an integer representing the maximum number of R.sub.Z's which may be substituted in A1, Y.sub.S may be bonded to A1 or R.sub.Z to form a ring, and R.sub.Z may be bonded to A1 to form a ring.

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