Freezing enhanced transformation of sulfamethoxazole by MnO2.

Electrospun multilayer nanofibers with modified antibacterial alginate derivative for enhanced spinnability and drug sustained release.

Glycoproteins often exist in nature as heterogeneous glycoforms, making it difficult to obtain pure homogeneous samples for studying the roles of specific N-glycans within a glycoprotein. Despite various chemical and enzymatic methods developed for the synthesis of N-glycans, access to highly diverse N-glycans remains a challenge. Herein, we report a concise strategy for the synthesis of multiantennary N-glycans from designed common core structures with phosphate and sulfate protecting groups, which can be selectively deprotected by respective phosphatase and sulfatase, thereby enabling enzymatic elongation to install a desired glycan chain at a specific antenna. We also explored the directing effect of galactose sulfation for enzymatic fucosylation of the neighboring GlcNAc, further expanding the structural diversity of multiantennary N-glycans. Starting from sulfate and phosphate-terminated core structures, this synthetic strategy in aqueous solution provides an efficient and practical route for the enzymatic assembly of a diverse array of complex N-glycans for biological study.

Polarized Raman spectra of ethylene glycol in the region of 2500-4000cm-1: An influence of heating and dissolution in water.

Disarming bacterial iron homeostasis and sulfur antioxidant defenses via coordination-driven photosensitizer de-aggregation for enhanced photodynamic infection eradication.

Molecular insights into the enhanced CO₂ capture performance of sterically hindered 4,4′-trimethylenedipiperidine in aqueous solution

Innovative inorganic-organic synergistic assembly of γ-AlOOH/chitosan composite adsorbent for efficient simultaneous removal of Congo red and Cr(VI) from aqueous solution

Stereocontrolled self-assembly of alternated Bi-heterodimetallic [PdII2–CuII2] supramolecular polymer for efficient adsorption of organic dyes in aqueous solutions

The present study aims to obtain and characterize activated carbon obtained from hazelnut shells and evaluate its adsorption capacity towards Cu2+ ions. The synthesis includes pyrolysis at 700оC and subsequent chemical activation with KOH (1:1 ratio) at 500оC. The obtained activated carbon (ACH) was characterized by elemental analysis, nitrogen adsorption (BET method), FT-IR spectroscopy and scanning electron microscopy (SEM). The results show the formation of carbon with a well-developed microporous structure and high specific surface area. The performed FT-IR analysis confirms the presence of oxygen-containing functional groups on the surface. Adsorption tests demonstrate high efficiency of ACH in removing Cu2+ ions from aqueous solutions. The obtained data prove that hazelnut shells are a suitable raw material to produce activated carbon, which appears as a promising and sustainable adsorbentfor water purification from heavy metals.

Superior and effective removal of heavy metal ions from aqueous solutions using molecularly imprinted polymer supported on Fe3O4@SiO2 as a novel nano adsorbent

A cellulose-based hybrid material (cellulose-PA/Fe-MoS2) for the combined adsorptive and photocatalytic removal of levofloxacin from aqueous solutions

Structural insights into wasp venom: Small molecules, peptides, and proteins.

The interactions of non-steroidal anti-inflammatory drugs (NSAIDs) with excipients significantly influence their solubility, stability and bioavailability, and have a significant impact on the therapeutic efficacy of drugs. The present study explores the molecular interactions between the NSAID and D-mannitol in an aqueous system over the temperature range 293.15 to 313.15 K, using thermo-acoustic and computational techniques. Thermo-acoustic parameters, including apparent and partial molar volume (Øv, Øov), apparent and partial molar isentropic compressibility (Øk, Øok), and transfer partial molar volume (∆tr, Øov), etc, were calculated using experimental data of density (ρ) and sound velocity (u). The positive values of partial molar volume and the negative value of partial molar isentropic compressibility indicate the existence of molecular interactions. The positive values of ∆𝑡𝑟∅𝑣° indicate the existence of ion-hydrophilic and hydrophilic-hydrophilic interactions. Hepler's constant (∂2Øov/∂T2)p indicates that Sodium naproxen (Na-NAP) acts as a structure-maker in the presence of D-mannitol in the aqueous solution. In addition to volumetric and acoustic studies, computational work involving HOMO-LUMO analysis, single-point energy calculations, dipole moments, and global reactivity descriptors highlights the stability and reactivity of the interacting species. In the gas phase, the HOMO-LUMO gap decreased significantly (0.29 eV), but it increased in aqueous medium (2.83 eV), suggesting that the complex has stabilized. These findings offer a strong foundation for stabilizing drugs through structure-making behaviour, providing a rational basis for developing effective pharmaceutical formulations.

Computational insights into fenbendazole encapsulation by Cucurbit[n]urils (n = 7, 8): Implications for drug delivery and nanocarrier design through integrated structural, electronic, thermodynamic, and spectroscopic investigations.

Biologically responsive micelles based on polygonatum sibiricum polysaccharide for docetaxel delivery.

Separation of arsenic from aqueous solutions via continuous adsorption in a packed-bed column utilizing an UiO-66@mesoporous carbon nitride/granular activated carbon composite

Heavy metal contamination in aquatic ecosystems is a global concern due to its toxicity, persistence, and potential for bioaccumulation. Effective removal is therefore essential. Among other techniques, adsorption is the most reliable and prevalent method of water purification. Graphene-based adsorbents exhibit significant advantages, including high specific surface area, small particle size, excellent mechanical properties, abundant functional groups, and high adsorption efficiency, making them promising materials for heavy metal removal from aqueous solutions. This article reviews recent advances in graphene and its derivative composites for heavy metal adsorption. It discusses structural features, adsorption mechanisms, synthesis methods, and the historical development of these composites. Key factors influencing adsorption capacity-such as temperature, pH, adsorbent dosage, contact time, initial metal concentration, organic ligands, and coexisting ions-are also examined. Additionally, adsorption thermodynamics and regeneration behavior are evaluated, and future research directions for practical applications are outlined.

A hyperbranched polymer-based stationary phase for hydrophilic interaction chromatography.

Highly efficient capture of thorium ions from aqueous solution through a microfibrillar network aerogel with anchored molecular tentacles

High-performance electrochemical sensors enhanced with Fe3O4/Graphene oxide catalyst and ionic liquid for monitoring bisphenol A, a toxic contaminant in food.