Asymmetric reductive arylation and alkenylation to access S-chirogenic sulfinamides.

The study of the stereochemistry of organic sulfur compounds has been ongoing for over a century, with S-chirogenic pharmacophores playing an essential role in drug discovery within bioscience and medicinal chemistry. Traditionally, the synthesis of sulfinamides featuring stereogenic sulfur(IV) centers involves a complex, multistep process that often depends on chiral auxiliaries or kinetic resolution. Here, we introduce an effective and versatile method for synthesizing diverse classes of S-chirogenic sulfinamides through selective aryl and alkenyl addition to sulfinylamines.

Mussel-inspired modification of bamboo fibers via co-deposition of polydopamine cross-linked polyethyleneimine for advanced interfacial compatibility improvement in PLA composites.

Interfacial modification has been extensively studied in the realm of plant fiber-reinforced bio-composites, with biomimetic polydopamine (PDA) modification garnering significant attention in recent years. This paper presents a novel strategy involving the one-pot co-deposition of PDA cross-linked with polyethyleneimine (PEI) to modify bamboo fibers (BF) for reinforcing polylactic acid (PLA). This approach enhances the interfacial compatibility between BF and PLA through robust linkages in a convenient, green, and non-destructive way.

Synergizing oxygen vacancy engineering and f-Electron doping to Promote dynamics of Rare-Earth-Doped bismuth Oxyhalides for photocatalysis.

Efficient exciton dissociation and surface molecular oxygen activation are crucial for advancing photocatalysis in energy and environmental applications. However, photocatalytic performance is often limited by complex electron-nuclear interactions and strong exciton binding energies, primarily due to significant exciton effects. In this work, we introduce a novel strategy to enhance exciton dissociation by doping samarium (Sm) into bismuth oxoiodide (BiOI) to modulate the concentration of oxygen vacancies (Ov).

Preparation, characterization of algae polyphenol-polysaccharide composite films and application in chilled porcine longissimus lumborum packaging.

The objective of this study was to assess the efficacy of pullulan (PUL) based films incorporated with algae polyphenol extracts (APE) in preserving the freshness of porcine longissimus lumborum (PLL) during refrigerated storage at 4 °C for 7 d. Among 3 types of polysaccharides (tested konjac gum, soluble soybean polysaccharide, and PUL), the PUL-APE composite film demonstrated superior film performance. The effects of APE concentrations at 1, 2, 3, 4, and 5 % (w/v) on the barrier, mechanical, physical, and optical properties of the developed films were evaluated while exploring intermolecular interactions between APE and polysaccharides.

Stomatal-based immunity differentiation across vascular plant lineages.

Some plants are known to actively close their stomata in the presence of foliar pathogens, inhibiting pathogen entry into leaves, leading to 'stoma-based immunity' as the first line of defense. However, the variation in stoma-based innate immunity across the diversity of vascular plants remains unclear. Here, we investigated the stomatal response and guard cell signaling pathway in various seed plant, fern, and lycophyte species when exposed to the bacterial pathogens or pathogen-associated molecular patterns (PAMPs).