Abstract: An organic electroluminescence device of an embodiment includes a first electrode and a second electrode facing each other, and at least one organic layer disposed between the first electrode and the second electrode, wherein at least one organic layer includes a condensed cyclic compound represented by Formula 1, thereby showing improved device efficiency and life.

Abstract: A bioactive coated substrate includes a base substrate, an outermost bioactive layer disposed over the base substrate, and a topcoat layer disposed on the outermost bioactive layer. Characteristically, the topcoat layer defines a plurality of pinholes that expose the outermost bioactive layer. A method for forming the bioactive coated substrate is also provided.

Abstract: A nitric oxide-releasing 3D printing ink is described for its composition and uses in fabricating a plurality of types of nitric oxide-releasing medical devices. The printing ink composition comprises a mixture of at least one nitric oxide donor and at least one polymer. The nitric oxide-releasing medical device is manufactured by 3D printing technology and provides antimicrobial and/or antithrombus effects by releasing nitric oxide in the presence of moisture.

Abstract: A thin film electroluminescent device, a preparation method thereof, and an electronic device are provided. The thin film electroluminescent device includes a first electrode, a functional structural layer disposed on the first electrode, a second electrode disposed on the functional structural layer, and a cover layer disposed on a side of the second electrode away from the first electrode. The cover layer includes an ionic compound having a chemical formula of AX2, wherein A is selected from divalent metal, and X is selected from halogen.

Abstract: Provided is a compound of Chemical Formula 1: wherein: R1 to R4 are each independently hydrogen, or groups adjacent to each other can bond to form a substituted or unsubstituted monocyclic or polycyclic ring; L is a direct bond or a substituted or unsubstituted arylene group; and Ar is Chemical Formula D: wherein: Y1 to Y5 each independently is N or CR; at least one of Y1 to Y5 is N; R is hydrogen, deuterium, a halogen group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group, and adjacent Rs can bond to each other to form a substituted or unsubstituted ring; and when R is two or more, the Rs are the same as or different from each other, and an organic light emitting device comprising the same.

Abstract: An organic compound, an electroluminescent material and its application are provided in the present disclosure. The organic compound includes a structure: X is selected from O, S, N—RN1, and CRC1RC2; Y is selected from O, S, N—RN2, CRC3RC4, O?S?O, SiRS1RS2, O?P—Ar1, and S?P—Ar2, RN1, RN2, RC1, RC2, RC3, RC4, RS1, and RS2 are each independently selected from C1˜C20 linear or branched alkyl, C6˜C40 aryl, and C3˜C40 heteroaryl; Ar1 and Ar2 are each independently selected from C6˜C40 aryl and C3˜C40 heteroaryl; L1, L2, L3, L4, and L5 are each independently selected from a single bond, C6˜C40 arylene, and C3˜C40 heteroarylene; R1, R2, R3, R4, and R5 are each independently selected from deuterium, C1˜C20 linear or branched alkyl, C1˜C20 alkoxy, C1˜C20 alkylthio, C3˜C20 cycloalkyl, C6˜C40 aryl, C3˜C40 heteroaryl, and C6˜C40 arylamino; and n1, n2, n3, n4, n5, m1, m2, m3, m4, and m5 are integers each independently selected from 0-2.

Abstract: A novel heterocyclic compound of Chemical Formula 1 and an organic light emitting device including the same. wherein one of Ar1 to Ar3 is of the following Chemical Formula 2, and one of Ar4 to Ar7 is a substituted or unsubstituted dibenzofuran; or a substituted or unsubstituted dibenzothiophene, the rest being hydrogen.

Abstract: A compound of Chemical Formula 1, and an organic light emitting device including the same.

Abstract: The present invention relates to a modified polymer having the structure of Formula (I) and Formula (IV): wherein A, R1, R2, R3, a, and n are as described herein and wherein R, R?, R?, x, and k are as described herein and methods for preparation thereof. The present invention also relates to a compound having the structure of Formula (II): wherein A, R1, R2, R3, a, and n are as described herein. The present invention also relates to a process for polymerizing unsaturated hydrocarbon monomers.

Abstract: An organic electroluminescence device includes a first electrode, an organic layer disposed on the first electrode, and a second electrode disposed on the organic layer, wherein the organic layer includes a polycyclic compound represented by Formula 1. The organic electroluminescence device may have high emission efficiency.

Abstract: The present invention provides the compound represented by Formula 1, an organic electric element comprising a first electrode, a second electrode, and an organic material layer formed between the first electrode and the second electrode, and electronic device thereof, and by comprising the compound represented by Formula 1 in the organic material layer, the driving voltage of the organic electric element can be lowered, and the luminous efficiency and life time of the organic electric element can be improved.

Abstract: An aromatic compound which improves emission efficiency and an organic electroluminescence device including the same are provided. The organic electroluminescence device includes: a first electrode; a second electrode opposite to the first electrode; and a plurality of organic layers between the first electrode and the second electrode, where at least one organic layer among the plurality of organic layers includes the aromatic compound. The aromatic compound is represented by Formula 1 below.

Abstract: Disclosed herein are zwitterionic monomers, non-zwitterionic monomers, polyzwitterionic polymers formed therefrom; surface functionalization; surface modification; and articles containing any such compositions or surfaces formed therefrom.

Abstract: The present invention provides with an electron-accepting compound having a structure of the following formula (1):

Abstract: A thermally stable and solvent resistant conductive polymer composite and its manufacturing friendly preparation method are disclosed. The disclosed composite presents great electrical conductivity with thermal stability and solvent resistance. A method of mixing a host thiophene conjugated polymer and a crosslinkable silane precursor simultaneously introduces both dopant and rigid cross-linked siloxane network into polymer system. The thin film made by the disclosed thermally stable and solvent resistant conductive polymer composite can be applied to fabricate various devices.

Abstract: Provided is a thermoplastic resin composition and a molded article excellent in balance of color developability and low-temperature impact resistance, where a polyorganosiloxane-containing graft copolymer in which a rubber (A) containing a polyorganosiloxane (A1) and a vinyl polymer (A2) is grafted with a vinyl monomer (b), wherein the vinyl polymer (A2) includes 90 to 100% by mass of a monofunctional vinyl monomer (a1) and 10 to 0% by mass of a polyfunctional vinyl monomer (a2) with respect to 100% by mass of the vinyl polymer (A2), wherein the glass transition temperature of the homopolymer of the monofunctional vinyl monomer (a1) is 0° C. or higher, and the peak of tan ? of the polyorganosiloxane-containing graft copolymer is in the range of ?125° C. to ?90° C.

Abstract: Provided are thiol-acrylate hydrogels and tunable cell culture materials including thiol-acrylate hydrogels, and methods of making thereof. Also provided are systems for forming three-dimensional cell culture scaffolds including the materials, and methods of culturing cells, including cancer cells, using thiol-acrylate hydrogels and tunable cell culture materials. The materials herein can be used in microfluidic droplet-generating devices.

Abstract: A compound including a first ligand LA having the structure of Formula I, is disclosed. In Formula I, rings A and B are each a 6-membered rings; Z1 and Z2 are each carbon or nitrogen; each RA and RB is independently hydrogen or a variety of substituents; any two substituents are optionally joined or fused into a ring; at least one RA or RB comprises an aromatic group substituted by a bridge structure, and this RA or RB joins with an adjacent substituent and fuses to ring A or B; the bridge structure comprises a backbone structure that forms a fused first ring; the backbone structure is saturated, comprises at least one heteroatom, and is optionally further substituted; and the ligand LA is coordinated to a metal M that can be coordinated to other ligands.

Abstract: The present invention provides a white pigment comprising a ZIF-based (zeolitic imidazolate framework) powder having a structure in which zinc (Zn) and an imidazole-based organic substance are bonded, a polymer resin film comprising the white pigment and a method for changing a color of a medium using the white pigment.

Abstract: Disclosed is a polyester and molded article. The polyester includes residues of formula (i), formula (ii), and formula (iii): in which R1 is an arylene group; R2 is a C2-C6 straight-chain hydrocarbylene group; and * represents a linking bond. The polyester has a number average molecular weight not less than 15,000 and has a degree of dispersion ranged from 2.95 to 5.70.