This review summarizes the important morphological characteristics and recent research progress of non-fullerene acceptor based organic solar cells, as well provides insights perspectives on this topic.

By incorporating soft materials into the architecture, flexible mechanical metamaterials enable promising applications, e.g., energy modulation, and shape morphing, with a well-controllable response, but suffer from spatial temporal programmability towards higher-level intelligence. One feasible solution is to introduce snapping structures then tune their responses by accurately tailoring stress-strain curves. However, owing strongly coupled nonlinearity of structural deformation material...

Abstract Remediation of contaminated soil and sediment is important for improving the eco-environmental quality. Electro-kinetic remediation (EKR) an environmentally friendly technology to migrate remove pollutants from matrix. This paper analyses mechanism performance EKR heavy metals, organic pollutants, compound pollutants. Moreover, effect optimizing individual through pre-treatment (adding acid/oxidant/co-solvent/surfactant, stirring, heating, etc.), electrode optimization (exchange...

An efficient glycosylation reaction utilizing a meticulously designed thioglycoside has been developed. The well-established protocol was demonstrated in the total synthesis of TD139 and one-pot assembly E. coli O33 antigen tetrasaccharide.

2-Deoxy-β-glycosides are essential components of natural products and pharmaceuticals; however, the corresponding 2-deoxy-β-glycosidic bonds challenging to chemically construct. Herein, we describe an efficient catalytic protocol for synthesizing 2-deoxy-β-glycosides via either IPrAuNTf2-catalyzed activation a unique 1,2-trans-positioned C2-S-propargyl xanthate (OSPX) leaving group or (PhO)3PAuNTf2-catalyzed 1,2-trans-C2-ortho-alkynylbenzoate (OABz) substituent thioglycosides. These...

Catalytic glycosylation is a vital transformation in synthetic carbohydrate chemistry due to its ability expediate the large-scale oligosaccharide synthesis for glycobiology studies with consumption of minimal amounts promoters. Herein we introduce facile and efficient catalytic employing glycosyl ortho-2,2-dimethoxycarbonylcyclopropylbenzoates (CCBz) promoted by readily accessible non-toxic Sc(III) catalyst system. The reaction involves novel activation mode esters driven ring-strain...

Aqueous zinc ion batteries (AZIBs) are an ideal choice for a new generation of large energy storage devices because their high safety and low cost. Vanadium oxide-based materials have attracted great attention in the field AZIB cathode due to theoretical capacity resulting from rich oxidation states. However, serious structural collapse intrinsic conductivity vanadium cause rapid fading, which hinders further applications materials. Here, characteristics mechanisms reviewed, optimization...

Abstract Multimodal Aspect-Based Sentiment Analysis (MABSA) is an essential task in sentiment analysis that has garnered considerable attention recent years. Typical approaches MABSA often utilize cross-modal Transformers to capture interactions between textual and visual modalities. However, bridging the semantic gap modalities spaces addressing interference from irrelevant objects at different scales remains challenging. To tackle these limitations, we present Multi-level Textual-Visual...

A mild and convenient method for the synthesis of reverse glycosyl fluorides (RGFs) has been developed that is based on silver-promoted radical dehydroxymethylative fluorination carbohydrates. salient feature reaction furanoid pyranoid carbohydrates furnish structurally diverse RGFs bearing a wide variety functional groups in good to excellent yields. Intramolecular hydrogen atom transfer experiments revealed involves an underexploited proceeds via β-fragmentation sugar-derived primary...

Reinforced thermoplastic composite pipes (RTPs) have been widely used for oil and gas gathering transportation. Polyvinylidene fluoride (PVDF) has the greatest potential as a liner of RTPs due to its excellent thermal mechanical properties. However, permeation gases is inevitable in liner, which may lead blister failure damage safe operation RTPs. In order clarify behavior obtain mechanism mixture (CH4/CO2/H2S) PVDF at normal service conditions, molecular simulations were carried out by...

Abstract In order to distinguish the grinding performance of thermoset and thermoplastic carbon fiber‐reinforced plastic (CFRP) composites, epoxy resin (CF/epoxy) poly‐ether‐ether‐ketone (CF/PEEK) composites were employed in this study. Different process parameters set grind two materials. Then surface morphologies roughness workpieces with different observed measured. Experimental results indicated that forces positively correlated depth feed speed, negatively wheel speed. The was main...

Peptidoglycan (PG), an essential exoskeletal polymer in bacteria, is a well-known antibiotic target. PG polymerization requires the action of bacterial transglycosylases (TGases), which couple incoming glycosyl acceptor to donor. Interfering with TGase activity can interrupt assembly. Existing inhibitors like moenomycin and Lipid II analogues always occupy active sites; other strategies interfere proper elongation have not been widely exploited. Inspired by natural 1,6-anhydro-MurNAc termini...

Abstract To distinguish the grinding performance of multidirectional (MD) and unidirectional (UD) carbon fiber‐reinforced thermoplastic (CFRTP) composites, MD UD poly‐etherether‐ketone (CF/PEEK) composites were employed in this study. Different ply stacking sequences process parameters set for experiments. Subsequently, surface morphologies roughness observed measured. Experimental results indicated that variations forces with MD‐CF/PEEK UD‐CF/PEEK consistent. However, heat transfer...

The development of novel agents with immunoregulatory effects is a keen way to combat the growing threat inflammatory storms global health. To synthesize pseudo-steroidal glycosides tethered by ether bonds promising immunomodulatory potential, we develop herein highly effective deoxygenative functionalization steroidal donor (steroidation) facilitated strain-release, leveraging cost-effective and readily available Sc(OTf)3 catalysis. This transformation produces transient steroid-3-yl...

We demonstrate an efficient, scalable, and stereoselective C-glycosylation with thioglycosides possessing a unique photoactive tetrafluoropyridin-4-yl (TFPy) thio radical leaving group, affording editable medicinally biologically essential C-α-glucogallin derivatives. In the presence of silyl enol ether acceptors, desulfurative coupling reaction performs smoothly under mild conditions upon exposure to blue light irradiation. This versatile protocol permits synthesis sugar-drug chimeras by C1...

ACu(OTf) 2 /Fe(OTf) 3 -promoted facile and stereoselective synthesis of 2,3-unsaturated glycosides through Ferrier rearrangement rationally designed glycals with C3-CCBz. The dual roles the metal catalysts in reaction are explored DFT.

Abstract Vanadium‐based cathode materials have attracted great attention in aqueous zinc‐ion batteries (AZIBs). However, the inferior ion transport and cyclic stability due to strong Coulomb interaction between Zn 2+ lattice limit their further application. In this work, CO 2 molecules are situ embedded interlayer structure of NH 4 V O 10 by decomposing excess H C ·2H main framework, obtaining an ion‐molecule co‐confining for AZIB material. The introduced expanded spacing , broadened...

GlcNAc-1,6-anhydro-MurNAc is a key peptidoglycan elongation terminator of biological and medicinal importance. Herein, we present concise approach to this molecule in 12 steps with an overall 25% yield using d-glucosamine as the sole starting material. Our synthesis features formation 1,6-anhydro-MurNAc building block by intramolecular glycosylation selective conversion phthalimido group MurNPhth moiety, paving way for antibiotics new killing mechanism targeting bacterial transglycosylase.

The controlled transition from o-CoSe 2 to the c-CoSe crystalline phase was achieved by using different levels of Br doping strategies modulate microwave absorption properties.