Donor in organic solar cells (OSCs) is essential for promoting charge transport and enhancing photoelectric conversion efficiency. In this work, five new donors M1-M5 were designed by changing the end group to 3-hexyl-2,4-dithiothiazolidine, dicyano-hexylrhodanine, 1,1-dicyanomethylene-3-indanone, 1,3-indenedione and 1,1-dicyano-5,6-difluoroindanone, respectively. The optoelectronic properties of the six donors and their interfacial properties with the well-known acceptor Y6 were studied by density functional theory (DFT) and time-dependent density functional theory (TD-DFT).
View Article and Find Full Text PDFNitazoxanide is an FDA-approved antiprotozoal drug. Our previous studies find that nitazoxanide and its metabolite tizoxanide affect AMPK, STAT3, and Smad2/3 signals which are involved in the pathogenesis of liver fibrosis, therefore, in the present study, we examined the effect of nitazoxanide on experimental liver fibrosis and elucidated the potential mechanisms. The in vivo experiment results showed that oral nitazoxanide (75, 100 mg·kg) significantly improved CCl- and bile duct ligation-induced liver fibrosis in mice.
View Article and Find Full Text PDFThe donors are key components of organic solar cells (OSCs) and play crucial roles in their photovoltaic performance. Herein, we designed two new donors (BTR-γ-Cl and BTR-γ-F) by finely optimizing small molecule donors (BTR-Cl and BTR-F) with a high performance. The optoelectronic properties of the four donors and their interfacial properties with the well-known acceptor Y6 were studied by density functional theory and time-dependent density functional theory.
View Article and Find Full Text PDFIntroduction: Koumine (KME) is the most abundant active ingredient separated from Benth and exhibits a significant therapeutic effect on rheumatoid arthritis (RA). It is a lipophilic compound with poor aqueous solubility, and there is an urgent need to develop novel dosage forms of KME and promote its clinical application for the treatment of RA. The aim of this study was to design and develop KME-loaded microemulsions (KME-MEs) for the effective management of RA.
View Article and Find Full Text PDFHeat shock protein 90 (HSP90) has been recognized as a crucial target in cancer cells. However, various toxic reactions targeting the ATP binding site of HSP90 may not be the best choice for HSP90 inhibitors. In this paper, an ellagic acid derivative, namely, okicamelliaside (OCS), with antitumor effects was found.
View Article and Find Full Text PDFLong noncoding RNAs (lncRNAs) are noncoding RNAs more than 200 nucleotides in length. A growing number of reports indicate that lncRNAs play a key role in multiple cancers by serving as oncogenes or tumor suppressor genes. MAGI2 antisense RNA 3 (MAGI2-AS3) is ubiquitously expressed in human cancers, and the level of MAGI2-AS3 expression is associated with the progression and prognosis of cancers.
View Article and Find Full Text PDFTwo new cembrane diterpenoids, named populeuphrines A and B ( and ), together with three known analogues (-) were isolated from the resins of . The planar structures and relative configurations of and were elucidated by detailed 1 D and 2 D NMR spectroscopic analyses. The absolute configurations of and were determined by X-ray diffraction analysis and quantum chemical computation.
View Article and Find Full Text PDFPopulusone (1), a cembrane-type macrocyclic trinorditerpenoid, was isolated from the exudates of Populus euphratica and shown to have an unprecedented carbon skeleton, The structure was identified using spectroscopic methods and X-ray crystallography. A possible pathway for the biosynthesis of 1 was proposed. Populusone (10 μM) was found to promote proliferation and differentiation of umbilical cord derived mesenchymal stem cells into keratinocyte like cells.
View Article and Find Full Text PDFNanotechnology
November 2012
Different types of carbon coated iron (Fe) based nanoparticles were controllably synthesized by detonation decomposition of urea nitrate metal complex explosive precursors. In order to control the detonation synthesis of the Fe-based composite nanoparticles, the main components of the urea nitrate metal complex explosive precursors were optimally designed. The components, morphologies, structures and various Fe-based phase composition of the as-obtained composite nanoparticles were further investigated by x-ray diffraction, transmission electron microscopy, electron diffraction spectroscopy and energy dispersive x-ray spectroscopy.
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