Time filter

Source Type

Yen Y.-S.,Academia Sinica, Taiwan | Chen Y.-C.,Academia Sinica, Taiwan | Hsu Y.-C.,Academia Sinica, Taiwan | Chou H.-H.,Academia Sinica, Taiwan | And 2 more authors.
Chemistry - A European Journal

New heteroleptic ruthenium complexes have been synthesized and used as the sensitizers for dye-sensitized solar cells (DSSCs). The ancillary bipyridine ligand contains rigid aromatic segments (fluorene-, carbazole-, or dithieno[3,2-b:2′,3′-d]pyrrole-substituted bipyridine) tethered with a hydrophobic hexyl substituent. The conjugated aromatic segment results in significant bathochromic shift and hyperchromic effects in these complexes compared with Z907 (cis-[RuLL′(NCS)2]; L=4,4′- dicarboxylic acid-2,2′-bipyridine, L′=4,4′-dinonyl-2,2′- bipyridine). The long hydrocarbon chains help to suppress the dark current if appropriately disposed. DSSCs that use these complexes exhibit very impressive conversion efficiencies (5.94 to 6.91 %) that surpass that of Z907-based (6.36 %) DSSCs and are comparable with that of N719-based standard cells (7.13 %; N719=cis-di(thiocyanato)bis(2,2′-bipyridyl-4,4′-dicarboxylato) ruthenium(II) bis(tetrabutylammonium)) fabricated and measured under similar conditions (active area: 0.5× 0.5 cm2; AM 1.5 sunlight). Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Source

Zhao J.-H.,Institute of Nuclear Energy Research of Taiwan | Liu H.-L.,National Taipei University of Technology | Elumalai P.,National Taipei University of Technology | Chen W.-H.,Institute of Nuclear Energy Research of Taiwan | And 2 more authors.
Journal of Molecular Modeling

Understanding the nature of the recognition between amyloid protofibrils and dye molecules at the molecular level is essential to improving instructive guides for designing novel molecular probes or new inhibitors. However, the atomic details of the binding between dyes and amyloid fibrils are still not fully understood. In this study, molecular docking, consensus scoring, molecular dynamics (MD), and molecular mechanics Poisson-Boltzmann surface area (MM-PBSA) analyses were integrated to investigate the binding between Congo red (CR) and the GNNQQNY protofibril from yeast prion protein Sup35 and to further evaluate their binding stabilities and affinities. Our results reveal that there are four CR binding sites located on GNNQQNY protofibril surface. These four CR binding sites adopt dual binding modes by which CR binding with its long axis parallel and perpendicular to the long axis of the protofibril. In addition, CR was also found to bind to the edge of the protofibril via hydrophobic/aromatic and hydrogen-bonding interactions, which is inferred as the possible inhibition mechanism to prevent the elongation of the protofibril from the addition of incoming peptides. Virtual screening from National Cancer Institute (NCI) database obtained three hit compounds with higher binding affinity than CR to the edge of the protofibril due to the fact that the central parts of these compounds are able to form additional hydrogen bonds with the protofibril. The results of the study could be useful for the development of new molecular probes or inhibitors for clinical applications. [Figure not available: see fulltext.] © 2012 Springer-Verlag. Source

Everlight Chemical Industrial Corporation | Date: 2012-09-18

A polyurethane derivative and a composition thereof are disclosed. The polyurethane derivative of the present invention has a structure of formula (I). The polyurethane derivative and the composition thereof can be used for increasing light fastness.

Everlight Chemical Industrial Corporation | Date: 2013-04-09

Industrial chemicals; chemical preparations for scientific purposes; chemical reagents, other than for medical or veterinary purpose; unprocessed artificial resins; adhesives and glues for industrial purposes; etchants for use in the manufacture of printed circuit boards; etchants for use in the manufacture of semiconductors; chemical additives for use in the manufacture of plastics; chemical preparations to be applied to textiles, plastics and coatings for absorbing ultraviolet light; chemical preparations, namely, degreasing and cleaning solvents; solvent type processing compositions for use in the electronics industry; titanium dioxide for industrial purposes. Dyestuffs; printing ink; toners; inks, toners and dyes for use with or on textiles and fabrics. Chemical preparations for sanitary purposes; diagnostic preparations for medical and veterinary use; reagents for medical use; vitamin and mineral preparations for medical use; yeast or yeast extracts for medical, veterinary or pharmaceutical purposes; antibacterial pharmaceuticals.

Micro Process Inc., Mitsubishi Rayon Co. and Everlight Chemical Industrial Corporation | Date: 2010-12-27

A photosensitive resin composition comprising: a vinyl-based polymer (I) obtained by polymerizing a monomer mixture containing a monomer (a) having a phenolic hydroxyl group; a vinyl-based polymer (II) obtained by polymerizing a monomer mixture containing a carboxyl group-containing vinyl monomer (b), and having a weight average molecular weight of 20,000 to 100,000, provided that the vinyl-based polymer (I) is excluded; a quinonediazide compound (III); and a compound (IV) represented by following formula (5). [In the formula, Y is a hydrocarbon group of 1 to 6 carbon atoms; 1 and m are each independently an integer of 1 to 3; n is 1 or 2; p and q are each independently 0 or 1.]

Discover hidden collaborations