An organic EL device includes a pair of electrodes and an organic compound layer between pair of electrodes. The organic compound layer includes an emitting layer including a first material, a second material and a third material, in which singlet energy EgS(H) of the first material, singlet energy EgS(H2) of the second material, and singlet energy EgS(D) of the third material satisfy a specific relationship.

An organic EL device includes a pair of electrodes and an organic compound layer between pair of electrodes. The organic compound layer includes an emitting layer including a first material, a second material and a third material, in which singlet energy EgS(H) of the first material, singlet energy EgS(H2) of the second material, and singlet energy EgS(D) of the third material satisfy a specific relationship.

A mutant hydrolase optionally fused to a protein of interest is provided. The mutant hydrolase is capable of forming a bond with a substrate for the corresponding nonmutant (wild-type) hydrolase which is more stable than the bond formed between the wild-type hydrolase and the substrate and has at least two amino acid substitutions relative to the wild-type hydrolase. Substrates for hydrolases comprising one or more functional groups are also provided, as well as methods of using the mutant hydrolase and the substrates of the invention. Also provided is a fusion protein capable of forming a stable bond with a substrate and cells which express the fusion protein.

The present invention provides methods, compositions, mixtures and kits utilizing deoxynucleoside triphosphates comprising a 3-O position capped by a group comprising methylenedisulfide as a cleavable protecting group and a detectable label reversibly connected to the nucleobase of said deoxynucleoside. Such compounds provide new possibilities for future sequencing technologies, including but not limited to Sequencing by Synthesis.

A spirally configured cis-stilbene/fluorene hybrid material is shown in formula (1),

##STR00001##

wherein R is an alkyl group or represented by formula (2), X represents CR.sub.36R.sub.37 or NR.sub.38, wherein R.sub.36 is represented by formula (3), R.sub.37 is represented by formula (4), R.sub.38 is represented by formula (5),

##STR00002##

wherein R.sub.1 to R.sub.4, R.sub.6 to R.sub.18 and R.sub.39 to R.sub.53 are independently selected from the group consisting of hydrogen atom, halogen atom, cyano group, alkyl group, cycloalkyl group, alkoxy group, amino group, haloalkyl group, thioalkyl group, silyl group and alkenyl group, R.sub.5 is a hydrogen atom, tert-butyl group or naphthyl group, n is 0 or 1.

The present invention relates to compounds of the formula (1) and (2) which are suitable for use in electro?nic devices, in particular organic electroluminescent devices.

The present invention relates to compounds of the formula (1) and (2) which are suitable for use in electro?nic devices, in particular organic electroluminescent devices.

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.

The present disclosure relates to an organic light-emitting diode exhibiting high luminance efficiency, low-voltage operation, and long lifespan and, more particularly, to an organic light-emitting diode, comprising: a first electrode; a second electrode facing the first electrode; and a light-emitting layer and an electron density control layer sequentially arranged between the first electrode and the second electrode wherein the light-emitting layer includes at least one of the amine compounds represented by Chemical Formula A or B and the electron density control layer includes at least one of the compounds represented by Chemical Formulas F to H. The structures of Chemical Formulas A, B, and F to H are as described in the specification.

Compounds useful as fluorescent or colored dyes are disclosed. The compounds have the following structure (I): ##STR00001##
including stereoisomers, salts and tautomers thereof, wherein R.sup.1a, R.sup.1b, 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, R.sup.2k, R.sup.2l, R.sup.2m, R.sup.2n, R.sup.2o, R.sup.2p, R.sup.2q, R.sup.2r and R.sup.2s are as defined herein. Methods associated with preparation and use of such compounds are also provided.