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zetapotential, etc ; hysteresis; models; oils; salinity; wettability; Show all 6 Subjects
Abstract:
... Experimental data suggest a relationship between the macroscopic zeta potential measured on intact rock samples and the sample wettability. However, there is no pore-scale model to quantify this relationship.We consider the simplest representation of a rock pore space: a bundle of capillary tubes of varying size. Equations describing mass and charge transfer through a single capillary are derived ...
zetapotential, etc ; Enterobacter; antibiotic resistance; particulates; pollution; stormwater; Show all 6 Subjects
Abstract:
... Recently, increasing attention has been paid to antibiotic resistance genes (ARGs) in urban stormwater runoff. However, there were little data on the diversity and distribution of ARGs associated with road sediments transported in runoff. The investigation of ARGs diversity showed that sulfonamide resistance genes (sul2 and sul3) occupied 61.7%–82.3% of total ARGs in runoff. The analysis of ARGs d ...
zetapotential, etc ; climate change; electrical conductivity; energy conversion; Show all 4 Subjects
Abstract:
... The transition metal carbides/nitrides referred to as MXenes has emerged as a wonder material presenting newer opportunities owing to their unique properties such as high thermal and electrical conductivity, high negative zeta-potential and mechanical properties similar to the parent transition metal carbides/nitrides. These properties of MXenes can be utilized in various societal applications inc ...
zetapotential, etc ; electrolytes; energy conversion; gels; models; nanopores; Show all 6 Subjects
Abstract:
... Performance of charged nanoporous membranes in ion separations and electrokinetic energy conversion is controlled by their surface-charge density. This (or related such as zeta-potential) parameter has often been obtained from measurements of pressure-induced electric potential typically referred to as streaming potential. However, with nanoporous membranes in dilute electrolyte solutions, determi ...
zetapotential, etc ; dispersants; homogenization; magnesium; magnesium hydroxide; raw materials; Show all 6 Subjects
Abstract:
... Magnesium is a raw material of great importance, which attracted increasing interest in the last years. A promising route is to recover magnesium in the form of Magnesium Hydroxide via precipitation from highly concentrated Mg²⁺ resources, e.g. industrial or natural brines and bitterns. Several production methods and characterization procedures have been presented in the literature reporting a bro ...
zetapotential, etc ; coal; energy; particle size; roughness; surface roughness; Show all 6 Subjects
Abstract:
... The impact of particle shape and surface properties has been mainly overlooked in the literature for different mineral systems. In this study, to investigate the effects of morphological variations, samples of clean coal particles (−0.212 + 0.075 mm) were used and the flotation experimental in a batch condition (2 L Denver cell) were conducted in the absence of collectors by keeping the particle s ...
zetapotential, etc ; adsorption; cellulose; gold; nanocrystals; nanogold; nanohybrids; nanospheres; rhodamines; Show all 9 Subjects
Abstract:
... Controllable and uniform loading of gold nanospheres (AuNSs) on cellulose nanocrystal (CNC) were first achieved by electrostatic adsorption self-assembly. By adjusting the size, Zeta potential, and the loading ratio of AuNSs and CNC, the particle spacing of AuNSs on CNC surface was successfully regulated. This strategy provides an easy and efficient approach to construct one dimensional (1D) "hot ...
zetapotential, etc ; chitosan; emulsions; flocculation; oils; plant gums; synergism; viscosity; Show all 8 Subjects
Abstract:
... In recent years, emulsions stabilized by natural substances have attracted great interests of scientists. As both the emulsifying properties of chitosan (CH) and corn fiber gum (CFG) are poor, the different complex of CH and CFG were used to stabilize emulsion. It was found that the CH-CFG complex had significantly better emulsifying properties than CH or CFG at the same concentration, indicating ...
zetapotential, etc ; carboxymethylcellulose; corn cobs; lignin; sodium hypochlorite; wood chemistry; Show all 6 Subjects
Abstract:
... In this study, corncob residue was treated in advance with different three methods in order to remove lignin. The treated fibers were characterized using Zeta potential, WRV, and FAS-VII fiber analysis methods. The lignin removal rates of the corncob residue treated with sodium hypochlorite were determined to reach up to 92.81%. The average fiber length was 0.65 mm, and the average width was 34.11 ...
zetapotential, etc ; emulsions; flocculation; food chemistry; hydrodynamics; pH; tea; water solubility; Show all 8 Subjects
Abstract:
... This study aimed to explore the characteristics of Pickering emulsions stabilized by tea water-insoluble protein nanoparticles (TWIPNs) at different pH values. The characteristics of TWIPNs at different pH values were analysed first. The average hydrodynamic diameter of TWIPNs in the suspension was smaller than 400 nm at pH 7–11. TWIPNs at pH 3 could not be used to stabilize Pickering emulsions. T ...
zetapotential, etc ; X-ray photoelectron spectroscopy; adsorption; aluminum; iron; pH; turbidity; Show all 7 Subjects
Abstract:
... The effects of metal ion species, valence state, and pH on the dispersion and agglomeration behavior of micro-fine particles of wolframite were studied in this work. Adsorption capacity test, flotation kinetics, solution chemistry, zeta potential, and X-ray photoelectron spectroscopy (XPS) were used to evaluate the effect of metal ions on dispersion and agglomeration mechanism of micro-fine partic ...
zetapotential, etc ; freeze drying; gum arabic; ice; liquids; nanogold; polyvinylpyrrolidone; spectroscopy; Show all 8 Subjects
Abstract:
... A series of edible and non-toxic substances were screened for their ability to prevent Au nanoparticles (AuNPs) from undergoing aggregation during both freeze-thawing and freeze-drying at as low an additive concentration as possible. Gum arabic was found to be an ideal choice. The addition of 20 µg/mL of gum arabic greatly inhibited the aggregation of AuNPs during freeze-thawing and -drying, where ...
zetapotential, etc ; adsorbents; adsorption; encapsulation; human health; magnetism; nanocomposites; phenanthrenes; silane; Show all 9 Subjects
Abstract:
... Phenanthrene (PHE), as one of representative polycyclic aromatic hydrocarbons (PAHs) can cause serious adverse effects on human health, developing effective adsorbents to alleviate PHE contamination is in urgent demand. A novel Fe₃O₄-SiO₂-Dimethoxydiphenylsilane (Fe₃O₄-SiO₂-2DMDPS) nanocomposite was fabricated from encapsulation and grafting process. Magnetic Fe₃O₄ nanoparticles were served as pre ...
Sergio Andrés Torres-Pérez; Luis Vallejo-Castillo; Said Vázquez-Leyva; Luis Gerardo Zepeda-Vallejo; José Enrique Herbert-Pucheta; Childérick Severac; Etienne Dague; Sonia Mayra Pérez-Tapia; Eva Ramón-Gallegos
zetapotential, etc ; adhesion; amides; dendrimers; industry; molecular weight; nanocarriers; spectral analysis; Show all 8 Subjects
Abstract:
... The recently developed One-Step Poly(amidoamine) (OS-PAMAM) dendrimers stand out for their characteristics as the high drug-load capacity and cell-delivery improvement of therapeutic agents. The OS-PAMAM dendrimers have proven to be useful in the biomedical field as nanocarrier or nanosystems for therapy. In the present research it was encouraging to determine their physicochemical characteristics ...
zetapotential, etc ; DNA; calves; food colorants; food preservation; tetracycline; zinc oxide; Show all 7 Subjects
Abstract:
... The current study describes design and synthesis of silica‐coated zinc oxide nanoparticles containing Ponceau 4R food colorant (named as ZnO@SiO₂@APTMS/P4R). The interactions of Ponceau 4R and ZnO@SiO₂@APTMS/P4R with calf thymus‐DNA were investigated It should be noted that the competitive binding experiment revealed that both Ponceau 4R and ZnO@SiO₂@APTMS/P4R could release Hoechst 33258. As infer ...
zetapotential, etc ; air; droplets; fractionation; lentils; oils; protein solubility; rheology; solvents; starch; Show all 10 Subjects
Abstract:
... Dry fractionation has shown to be a promising method to obtain less refined protein ingredients from legumes with novel technofunctionalities compared to solvent extracted protein isolates. However, the relationship between composition and functionality of such fractions especially for use as emulsifiers in concentrated emulsions is still unclear. In this study, investigations were carried out wit ...
zetapotential, etc ; adsorption; carbonates; oils; petroleum; porosity; salinity; sandstone; surface tension; temperature; Show all 10 Subjects
Abstract:
... Low salinity water (LSW) injection is one of the most economical methods of enhanced oil recovery (EOR) but its applicability as a waterflood was very limited. Also, its performance spectra significantly change when exposed to different rock compositions which need to be well understood. Thus, this study reports the impact of monovalent i.e., KCl and divalent i.e., CaCl₂ salts (of varying concentr ...
zetapotential, etc ; contact angle; dissolved oxygen; environmental technology; oxidation; pulp; surface tension; Show all 7 Subjects
Abstract:
... Through the flotation test of pure molybdenite and analyses of surface tension, XPS spectrum, zeta potential and contact angle, the influence of magnetized water on the flotation efficiency of pure molybdenite and its mechanism was investigated. The results showed that the recovery of coarse fraction was much higher than that of fine fraction, the magnetized water could significantly decrease the ...
zetapotential, etc ; calcium silicate; cement; construction materials; geochemistry; pH; radioactive waste; sorption; Show all 8 Subjects
Abstract:
... C–S–H phases are a major part of hardened cement used as potential construction material of a repository for high-level radioactive waste. Therefore, C–S–H phases are of great interest with respect to their structural and kinetic sorption properties to elucidate their contribution to the long-term safety of such a repository. Using TG-FTIR, XRD and zeta potential measurements, synthesised C–S–H ph ...
zetapotential, etc ; absorbance; color; colorimetry; ethanol; gold; hydrogen; nanogold; oxidation; solubility; solvents; Show all 11 Subjects
Abstract:
... The fundamental mechanism underlying solvent-mediated carbon dots (CDs) reduction of HAuCl₄ to form gold nanoparticles (AuNPs), and the surface characteristics deciding their dispersion and aggregation, are largely unclear. Monodispersed core-shell AuNPs@CDs₍wₐₜₑᵣ₎ (21.9 ± 2.7 nm) were in situ synthesized in water, while aggregated AuNPs@CDs₍ₑₜₕₐₙₒₗ₎ (102.6 ± 22.0 nm) were found in ethanol. We pro ...