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Уайер Полисачарид Прервет инфекцию PRV путем сокращения адсорбции и проникновения вирусов.

В 2011 году в Китае произошла новая вспышка вируса псевдорабочих (ППВ). Вместе с тем мало что известно о профилактике и лечении ПРВ. Уайер полисачарид использовался для лечения некоторых твердых раковых заболеваний, хотя о его антивирусной активности не сообщалось. Наше исследование подтвердило, что полисакарид может эффективно сдерживать инфекцию PRV XJ5 в клетках PK15. Он действовал в зависимости от дозы, блокируя адсорбцию вируса и вход в клетки PK15. Кроме того, она остановила воспроизведение PRV в ячейках PK15. Кроме того, полученные результаты свидетельствуют о том, что гуайерский полиса

Совпадение в аннотации оригинала
A pseudorabies virus (PRV) novel virulent variant outbreak occurred in China in 2011. However, little is known about PRV prevention and trea … inhibit infection of PRV XJ5 in PK15 cells. It acted in a dose-dependent manner when blocking virus adsorption and entry into PK15 cells. Moreover, it suppressed PRV replication in PK15 cells. In addition, the results suggest that Huaier polysaccharide plays a role in treating PRV XJ5 infection by directly inactivating PRV XJ5. In conclusion, Huaier polysacc …

Partially Reversible H2S Adsorption by MFM-300(Sc): Formation of Polysulfides.

The metal-organic framework (MOF)-type MFM-300(Sc) exhibits a combined physisorption and chemisorption capture of H2S, leading to a high uptake (16.55 mmol g-1) associated with high structural stability. The irreversible chemisorbed sulfur species were identified as low-order polysulfide (n = 2) species. The isostructural MFM-300(In) was demonstrated to promote the formation of different polysulfide species, paving the way toward a new methodology to incorporate polysulfides within MOFs for the generation of novel MOF-lithium/sulfur batteries.

Ultra-thin iron phosphate nanosheets for high efficient U(VI) adsorption.

In this study, the ultra-thin iron phosphate Fe7(PO4)6 nanosheets (FP1) with fine-controlled morphology, has been designed as a new two-dimensional (2D) material for uranium adsorption. Due to its unique high accessible 2D structure, atom-dispersed phosphate/iron anchor groups and high specific surface area (27.77 m2⋅g-1), FP1 shows an extreme-high U(VI) adsorption capacity (704.23 mg·g-1 at 298 K, pH = 5.0 ± 0.1), which is about 27 times of conventional 3D Fe7(PO4)6 (24.51 mg·g-1 -sample FP2) and higher than most 2D absorbent materials, showing a great value in the treatment of radioactive wa…

Goethite catalyzed Cr(VI) reduction by tartaric acid via surface adsorption.

The surface catalysis of goethite on the Cr(VI) reduction by tartaric acid was examined together with its adsorption characteristics towards the two reactants. The results showed the adsorption of tartaric acid by goethite was favorable at low pH and adsorption isotherm could be properly described by Langmuir model. The adsorption kinetic curves for both reactants obeyed the pseudo second-order rate model (R2 >0.99). The FTIR spectrum suggested the formation of bidentate binuclear surface complexes between tartaric acid and goethite. At pH 4.50, the reduction percentage of 0.1 mM Cr(VI) by 1.0…

Cooperative adsorption of carbon disulfide in diamine-appended metal-organic frameworks.

Over one million tons of CS2 are produced annually, and emissions of this volatile and toxic liquid, known to generate acid rain, remain poorly controlled. As such, materials capable of reversibly capturing this commodity chemical in an energy-efficient manner are of interest. Recently, we detailed diamine-appended metal-organic frameworks capable of selectively capturing CO2 through a cooperative insertion mechanism that promotes efficient adsorption-desorption cycling. We therefore sought to explore the ability of these materials to capture CS2 through a similar mechanism. Employing crystall…

Carbohydrate-Based Polymer Brushes Prevent Viral Adsorption on Electrostatically Heterogeneous Interfaces.

Chemical heterogeneity on biomaterial surfaces can transform its interfacial properties, rendering nanoscale heterogeneity profoundly consequential during bioadhesion. To examine the role played by chemical heterogeneity in the adsorption of viruses on synthetic surfaces, a range of novel coatings is developed wherein a tunable mixture of electrostatic tethers for viral binding, and carbohydrate brushes, bearing pendant α-mannose, β-galactose, or β-glucose groups, is incorporated. The effects of binding site density, brush composition, and brush architecture on viral adsorption, with the goal …

H2S Loss through Nalophan™ Bags: Contributions of Adsorption and Diffusion.

Hydrogen-sulfide (H2S) is a molecule of small dimensions typically present in the odor emissions from different plants. The European Standard EN 13725:2003 set a maximum storage time allowed of 30 hours, during which the sampling bag has to maintain the mixture of odorants with minimal changes. This study investigates the H2S losses through Nalophan bags and it shows that nonnegligible losses of H2S can be observed. The percent H2S loss after 30 hrs with respect to the initial concentration is equal to 33%  ± 3% at a relative humidity of 20% and equal to 22%  ± 1% at a relative humidity of 60%

Synthesis, characterization and adsorption behavior of cotton fiber based Schiff base.

Structural modification of Cotton (Cot) fiber was carried out using ε-caprolactone (CL) as a monomer and oxydianiline (ODA) as a Schiff base forming agent in the presence of V2O5 catalyst in dimethylsulfoxide medium for 24h under air atmosphere (0.10MPa) at 80°C. The obtained products were analyzed for the characteristics and also for its adsorption of hexavalent chromium (Cr(VI)) and rhodamine 6G (R6G) dye molecules. The 1H NMR spectrum confirms the Schiff base formation at 8.7ppm. The adsorption study confirms the Pseudo second order kinetics with Langmuir adsorption model. The structurally …

Electroresponsive Supramolecular Graphene Oxide Hydrogels for Active Bacteria Adsorption and Removal.

Bacteria contamination in drinking water and medical products can cause severe health problems. However, currently available sterilization methods, mainly based on the size-exclusion mechanism, are typically slow and require the entire contaminated water to pass through the filter. Here, we present an electroresponsive hydrogel based approach for bacteria adsorption and removal. We successfully engineered a series of graphene oxide hydrogels using redox-active ruthenium complexes as noncovalent cross-linkers. The resulting hydrogels can reversibly switch their physical properties in response t…

Adsorption of chromium from aqueous solutions using crosslinked chitosan-diethylenetriaminepentaacetic acid.

Chitosan (CH) and its derivatives have been the focus of attention for researchers as potential adsorbents for heavy metal removal. The adsorption potential of chitosan cross-linked with diethylenetriaminepentaacetic acid (CD) for Cr6+ was investigated. CD was characterized by FTIR, XRD, TGA, XPS and ESR techniques. Batch experiments were conducted to optimize the parameters affecting the adsorption of chromium. The optimum pH was found to be 3 and the adsorption process was found to be exothermic. Adsorption isotherms were determined and the maximum adsorption capacity of CD for chromium was …

Adsorption of fluoride from aqueous solution by enhanced chitosan/bentonite composite.

In this work, enhanced chitosan/bentonite composite was prepared by treating chitosan/bentonite composite with concentrated hydrochloric acid (HCl). The adsorption of fluoride ions from aqueous solution onto the enhanced chitosan/bentonite composite was investigated. Adsorption studies were performed in a batch system, and the effects of various parameters, such as the pH value of the solution, adsorbent dosage and initial fluoride concentration, were evaluated. The optimum operating conditions for fluoride removal by the enhanced chitosan/bentonite composite were pH = 7 or so, and adsorbent d…

Adsorption of double-stranded DNA to graphene oxide preventing enzymatic digestion.

Investigation into the interactions between graphene oxide (GO) and biomolecules is very important for broad applications of GO in bioassay and bioanalysis. In this work, we describe the interactions between double-stranded DNA (dsDNA) and GO. We demonstrated that dsDNA can bind to GO forming complexes (dsDNA/GO) in the presence of certain salts, which protects dsDNA from being enzymatically digested. On the other hand, we found that a nonionic surfactant, such as triton X-100, can block the formation of dsDNA/GO complexes, so that the enzymatic digestion of dsDNA is restored. These results le

Enhanced carbon adsorption treatment for removing cyanide from coking plant effluent.

Batch experiments were conducted to determine the effects of metal loading and fixing methods on the capacity of granular activated carbon (GAC) for removing cyanide from KCN (pH 11), K(3)Fe(CN)(6) solutions and several SCP effluent samples. KI fixed carbon (Cu/KI-GAC) was the most effective among the GAC samples tested. Adsorption was the primary mechanism of cyanide removal; catalytic oxidation of the adsorbed cyanide on carbon surface contributed a minor amount of the observed removal. Four small adsorbers containing the base GAC and 0-100% of Cu/KI-GAC were employed for treating a Fenton o…

Biogenic Mn oxides for effective adsorption of Cd from aquatic environment.

Biogenic Mn oxides exert important controls on trace metal cycling in aquatic and soil environments. A Mn-oxidizing bacterium Bacillus sp. WH4 was isolated from Fe-Mn nodules of an agrudalf in central China. The biogenic Mn oxides formed by mediation of this Mn oxidizing microorganism were identified as short-ranged and nano-sized Mn oxides. Cd adsorption isotherms, pH effect on adsorption and kinetics were investigated in comparison with an abiotic Mn oxide todorokite. Maximum adsorption of Cd to the biogenic Mn oxides and todorokite was 2.04 and 0.69 mmol g(-1) sorbent, respectively. Thus, t…

Adsorption from aqueous solutions of chlorinated organic compounds onto activated carbons.

The adsorption capacities of five chlorinated organic compounds, chloroform (CHCl3), 1,1,2,2-tetrachloroethane (S-TET), 1,1,2,2-tetrachloroethylene (PER), 1,2-dichloropropane (DCP), and bis(1-chloroisopropyl) ether (BCIPE) for DTO, WD-EXTRA, and AG-5 activated carbons were investigated. Moreover, the effective molecular diameters of investigated chlorocompounds were calculated. The Freundlich and Langmuir equations of adsorption isotherms describe the experimental data with good correlation for each studied system. The equilibrium data were also analyzed using the equations of Dubinin and Radu…

Metronidazole removal in powder-activated carbon and concrete-containing graphene adsorption systems: Estimation of kinetic, equilibrium and thermodynamic parameters and optimization of adsorption by a central composite design.

Metronidazole (MNZ) removal by two adsorbents, i.e., concrete-containing graphene (CG) and powder-activated carbon (PAC), was investigated via batch-mode experiments and the outcomes were used to analyze the kinetics, equilibrium and thermodynamics of MNZ adsorption. MNZ sorption on CG and PAC has followed the pseudo-second-order kinetic model, and the thermodynamic parameters revealed that MNZ adsorption was spontaneous on PAC and non-spontaneous on CG. Subsequently, two-parameter isotherm models, i.e., Langmuir, Freundlich, Temkin, Dubinin-Radushkevich and Elovich models, were applied to eva…

Fabrication of a chitosan-grafted-4‑vinylpyridine/thiol-amine-HZSM-5 nanocomposite via casting method in adsorption of heavy cations from water systems: an evaluation of adsorption mechanism.

This study presents the synthesis of low-silica HZSM-5 zeolite through a hydrothermal process. Subsequently, chitosan-grafted-4‑vinylpyridine/thiol-amine-HZSM-5 nanocomposites were fabricated using casting method for the effective removal of copper (Cu2+) and zinc (Zn2+) cations from aqueous systems. The fabricated cast nanocomposites were characterized using XRD, BET, XPS, FESEM, EDX, CHNS, FTIR, and TGA analyses. The simultaneous roles of amine (-NH2) and thiol (-SH) groups in enhancing the adsorption efficiency of Cu2+ and Zn2+ were thoroughly investigated. Additionally, the influence of ke…

Mapping the Free Energy Landscape of Protein Adsorption at Solid-Liquid Interfaces.

Protein adsorption at solid-liquid interfaces plays a crucial role in many biological and technological processes, including the design of biomaterials, biosensor performance, and biocatalysis. Understanding how proteins interact with surfaces is essential for controlling biofouling, optimizing medical implants, and engineering functional interfaces. Despite its significance, predicting adsorption behavior from molecular-level interactions remains challenging. In this work, we performed molecular dynamics simulations using umbrella sampling to sample the two-dimensional free-energy surface of …

[Adsorption Characteristics of Arsenic on UV-aged Polypropylene Microplastics in Aqueous Solution].

The adsorption characteristics of microplastics （MPs） for pollutants in the aqueous environment have received extensive attention； however， the adsorption characteristics of UV-aged MPs for arsenic （As） are not yet fully understood. In this study， the adsorption kinetics and isothermal adsorption of As（Ⅴ） from aqueous solutions by pristine and UV-aged MPs were investigated in static adsorption mode. Polypropylene microplastics （PP MPs） were used as the adsorbent， and the effects of environmental factors （pH， dissolved organic matter， and NO3-） on the adsorption process were also explored. The …

Intensification of micropollutant adsorption by activated carbon via short duration ultrasonic treatment.

The integration of ultrasonic (US) cavitation with conventional adsorbents offers a transformative opportunity to upscale wastewater treatment processes. This study evaluates the synergistic effects of US on two distinct activated carbons in granular (GAC) and powder (PAC) forms for the removal of micropollutants (μPs) from both spiked deionized water and secondary effluent. Results demonstrate that within the first minute, US promotes a four-to-six-fold increase in μP removal for GAC, achieving levels equivalent to 30 min of conventional stirred adsorption. This time-parity effect offers the …