A single crystal x-ray diffraction study revealed a β-D-configuration for the 2,4,6-trideoxy - 4 - thiomethyl - ribo hexopyranose fragment of esperamicin A1.

Evidence is presented that the sequence-specific DNA binding of esperamicin is accompanied by structural distortion of the host DNA that depends on hydrophobic interactions. In the first part of this paper, we describe the effects of conformational freedom of DNA on the DNA-cutting efficiency of...

Single crystal x-ray diffraction analyses revealed the relative configuration of esperamicin X and the absolute configuration of 2-deoxy fucose, a fragment present in all known esperamicins. Comparison of the CD curves for esperamicins X and Z gave evidence for their identical chirality. Based o...

A new non-symmetrical zinc(II) phthalocyanine (ZnPc) with an alkynyl functional group was prepared by an efficient mixed statistical condensation of 4-((4-ethynylbenzyl)oxy)phthalonitrile (1) and 4-(4-tert-butylphenoxy)phthalonitrile (2). The isolated unsymmetrical phthalocyanine molecule with a...

Reduced graphene oxide (rGO) as well as graphitic carbon nitride (g-C3N4) were synthesised and blended along with TiO2 at specific ratios in polystyrene photocatalytic films to find out the optimum efficiency. The prepared photocatalysts were characterised by scanning electron microscopy (SEM-ED...

In this work, the effect of temperature and concentration of imidazolium-based ionic liquids ([BMIm]Br, [HMIm]Br, and [OMIm]Br) on the intrinsic viscosity of sodium polystyrene sulfonate (NaPSS) was investigated, and the excellent conformance of obtained data to Wolf's equation was observed...

Hybrid organic–inorganic semiconductors (HOIS) based on lead halides exhibit unique optoelectronic properties even at room temperature, immediately assigning these for potential applications as optical and active device materials, where most common applications have been light emitting diodes (...

Brominated flame retardants (BFRs) are widely used as additives in plastics, textiles and electronics materials. Here, we investigated the photodegradation of four BFRs including decabromobiphenylether (BDE-209), tetrabromobipsphenol A (TBBPA), tetrabromobisphenol A-bis(2,3-dibromopropylether) (...

Cross-linked polystyrene beads were prepared, characterized and the resulting polymer carrier was functionalized with titanium tetrachloride (TiCl4) via complexation of polystyrene with TiCl4 to afford the corresponding cross-linked polystyrene-TiCl4 stable complex (PSt/TiCl4) in an one step rea...

A novel mid-block, side-chain-type quaternized triblock copolymer was prepared from commercial polystyrene-b-polybutadiene-b-polystyrene (SBS) triblock copolymers by Markovnikov addition reaction with HBr, azidation, and Cu(I)-catalyzed click reaction for high-performance anion exchange membrane...

We fabricated a conductive carbon nanosheet (CNS) film converted from brominated polystyrene (PS) and demonstrated that the CNS film can act as transparent electrode (TE) for polymeric photovoltaics (PPVs). The PS-converted CNS film was fabricated simply with spin-coating of a cost-effective PS ...

We present here a systematic investigation on the glass transition temperature (Tg) for a series of highly purified cyclic polystyrene (c-PS) samples with molecular weight (MW) varying from 3300 to 13,400. Compared with their linear counterparts, c-PS samples show much higher Tg and exhibit weak...

The development of safe and long-term stable solid polymer electrolytes is a major challenge for all solid-state batteries because good interfacial stability toward electrodes is the main concern. In this paper, a triblock copolymer polystyrene-poly(ethylene glycol)-polystyrene (PS-PEG-PS) is sy...

AimsTet1, Tet2, and interleukin-6 (IL-6) have been linked to atherosclerosis. Whether Tet3 has a relationship with atherosclerosis and IL-6 was unknown. This study aims to determine the link between Tet3 and IL-6, and the role of Tet3 in prenatal hypoxia-induced atherosclerosis in offspring rats.

In 1940, Lebesgue proved that every 3-polytope with minimum degree 5 contains a 5-vertex for which the set of degrees of its neighbors is majorized by one of the following sequences: (6,6,7,7,7),(6,6,6,7,9),(6,6,6,6,11),(5,6,7,7,8),(5,6,6,7,12),(5,6,6,8,10),(5,6,6,6,17),(5,5,7,7,13),(5,5,7,8,10)...

The aim of this work was to study whether the dietary supplementation with soluble fibre (SF) and the reduction of the n-6/n-3 fatty acid ratio or the combination of both influence the digestion and immune response in young rabbits after weaning. Four diets in a 2 × 2 factorial arrangement were...

The lung, in air-breathing vertebrates, is a tree-like structure composed of branching tubes ending in alveoli and lined by diverse and highly specialized epithelial cells.A dense array of complex and diverse glycoconjugates is present on essentially all animal cell surfaces. Sialic acids are wi...

According to early experiments with natural extracts, phosphatidylcholines (PCs) are widely considered essentially non-toxic. In addition to these physiological mixed-chain PCs, many different synthetic diacyl-PCs are currently available, but they have never been systematically evaluated for any...

In this work, aiming at finding a novel, potent, and selective sodium-dependent glucose cotransporter 2 (SGLT2) inhibitor with good pharmacokinetic profiles for the treatment of diabetes, we focus on modifying the sugar moiety of SGLT2 inhibitors, which dominates the binding with glucose binding...

The new and effective method for the synthesis of diamino substituted pyrano[3,4-c]pyridines was developed, based on recyclization of the pyridine ring. As initial compounds 6-aminopyrano[3,4-c]pyridine-2(1H)-thiones 4а–е were used. The X-ray crystallographic analysis showed the presence of i...