Polysulfone (PSF)-based mixed-matrix membranes (MMMs) were developed through incorporation by solvent casting of poly(ethylene glycol)-grafted carbon nanotubes (PEG-g-CNTs) into the polymer matrix. Single-gas permeability and respective perm-selectivity values resulting MMMs for CO2, CH4, N2 along with mixed-gas selectivities determined at various temperatures pressures. The performance was further analyzed obtaining gravimetrically gas adsorption isotherms interpreting results to determine...

Human papillomavirus (HPV) infection remains a significant global health concern, particularly due to its association with cervical cancer, the fourth most common cancer among women worldwide. This article explores molecular mechanisms underlying HPVassociated and discusses screening diagnostic methods crucial for early detection management. Key receptors, molecules, genes, proteins involved in HPVinduced carcinogenesis are examined, providing insights into potential therapeutic targets....

Detailed magnetically tunable ac electrical properties of x La0.7Sr0.3MnO3 (LSMO)–(1 − x) ErMnO3 (EMO) (x = 0.1, 0.3, and 0.5) multiferroic nanocomposites have been studied at 300 K in presence varying magnetic field (Happl), applied both parallel perpendicular configuration with respect to the measuring electric field. AC exhibited significant variation Happl for all composites, whereas such effect is very feeble 0.3 composite. We attributed this anisotropic behavior demagnetization sample....

We have investigated the structure and electrical properties of CoFe2O4, Ni0.5Co0.5Fe2O4 Zn0.5Co0.5Fe2O4 nanoparticles, prepared through a chemical pyrophoric reaction technique. The study dielectric constant reveals evidence Rabinkin Novikova polarisation in system. increased value at low frequency is attributed to presence interfacial dipolar impedance for nanoparticles found decrease with increase temperature, indicating temperature-dependent relaxation process Nyquist plots been fitted...

Abstract Poly(ethylene terephthalate) (PET) waste flakes (blow‐molded‐grade industrial waste) were degraded with aqueous methylamine and ammonia at room temperature in the presence absence of quaternary ammonium salt as a catalyst for various times. The reduced time required degradation PET waste. products analyzed IR, nuclear magnetic resonance, mass spectrometry, differential thermal analysis characterized N,N ′‐dimethylterephthalamide terephthalamide case ammonia, respectively. © 2005...

Abstract The degradation of polyethylene terephthalate (PET) waste by making use hydrazine monohydrate was investigated at ambient temperature and pressure. aminolysed end products obtained were characterized with chemical tests spectroscopic techniques namely IR, UV‐visible spectroscopy NMR, the differential scanning calorimeter (DSC). product as terephthalic dihydrazide (TPD) further used in PVC compounding secondary plasticizer. hardness, tensile strength, elongation break, thermal...

Introduction White spot lesions (WSLs) are early enamel caries often seen in individuals receiving fixed orthodontic treatment. These occur due to the buildup of plaque and colonization bacteria. WSL formation can be prevented by adequate oral hygiene measures incorporation antimicrobial nanoparticles (NPs) appliances bonding systems. The aim this research was synthesize cerium-substituted hydroxyapatite (Ce-HAp NPs), characterize them, assess their activity. Materials methods This vitro...

We have presented dielectric studies on Zn1−xCoxO, Zn1−xFexO, and Zn1−xFex/2Cox/2O (x = doping level) semiconducting nanoparticles (∼2–40 nm). For all those samples, constant (є) is found to exhibit a maximum with x. Enhancement of є be ∼250 times for Zn0.85Co0.15O ∼400 Zn0.8Fe0.1Co0.1O from that ZnO. Presence effective higher oxidation state transition metals ions in ZnO due Fe/Co resulting space charge polarization possibly yields this effect. The simultaneous existence high є,...

ABSTRACT This study describes the reinforcement effect of surface modified mullite fibers on crystallization, thermal stability, and mechanical properties polypropylene (PP). The nanocomposites were developed using polypropylene‐grafted‐maleic anhydride (PP‐ g ‐MA) as compatibilizer with different weight ratios (0.5, 1.0, 1.5, 2.5, 5.0, 10.0 wt %) amine functionalized (AMUF) via solution blending method. Chemical grafting AMUF PP‐ ‐MA resulted in enhanced filler dispersion polymer well...

Abstract The aim of the present paper is to develop an optical glucose sensor employing scattering effect light. cuprous oxide nanoparticles were prepared by a hydrothermal route. surface morphology, elemental distribution and average crystallite size synthesized have been analyzed using SEM, EDX XRD techniques respectively. SEM images show spherical structure nanoparticle highest peak oxygen in illustrates formation nanoparticles. confirms that Cu2O was successfully route with its 12.33 nm....

In this paper efforts have been made to explain the manufacturing method of Manganese-Zinc (Mn-Zn) soft ferrites in detail along with its uses and applications. The same is applicable Nickel-Zinc (Ni-Zn) Lithium Titanium (Li-Ti or Microwave) also. A process flow chart shown. steps like-mixing powders, calcination powder, grinding granules making, pressing components, sintering tunnel kiln box furnace machining on rotary table machine, explained. Effect atmosphere (oxygen), when components...