Materials Literature
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Gangliosides are essential compounds of the plasma membrane involved in cell adhesion, proliferation, and recognition processes, as well as in the modulation of signal transduction pathways. These functions are mainly supported by the glycan moiety, and changes in the structure of gangliosides occur under pathological…
Line-tension-induced scenario of heterogeneous nucleation is studied for a lens-shaped nucleus with a finite contact angle nucleated on a spherical substrate and on the bottom of the wall of a spherical cavity. The effect of line tension on the free energy of a critical nucleus can be separated from the usual volume t…
Property landscape modeling (PLM) methods are at the interface of experimental sciences and computational chemistry. PLM are becoming a common strategy to describe systematically structure-property relationships of datasets. Thus far, PLM have been used mainly in medicinal chemistry and drug discovery. Herein, we surv…
A novel wideband, low-profile and second-order miniaturized band-pass frequency selective surface (FSS) made of metallic mesh and its complementary structures with skewed arrays of modified triples is presented in this paper. Compared with traditional second-order bandpass FSSs obtained using λ/4 apart from one anothe…
A protocol created for acephate detection on particulates and vapors surrounding farmworkers as well as in urine samples is reported. Acephate is detected to the low parts-per-billion (ppb) range using surface-enhanced Raman spectroscopy (SERS). Optimal SERS sensor metal choice and post-production treatments to improv…
The dependence of the specific surface area of a tantalum powder on the conditions of reduction of magnesium tantalates MgTa 2 O 6 and Mg 4 Ta 2 O 9 by magnesium vapors is studied. This factor is shown to increase the powder specific surface area by several times. The powders have a nanoporous structure. Tantalum powd…
Curcumin is a hydrophobic polyphenol extracted from the plant curcuma longa with establishedanticancer properties. However, curcumin benefits have been impaired by its very low watersolubility, low absorption, rapid metabolism and clearance from the body. Recently,nanotechnology promises to be helpful in development o…
PURPOSE: The aim of this study was to evaluate the cytotoxic effect of a novel nano-silver particle (25.2±6.5 nm) endodontic irrigant (0.2 mM) and compare it with 3% sodium hypochlorite. MATERIALS AND METHODS: Two cell types, mouse fibroblast National Institutes of Health 3T3 (NIH 3T3) and primary human periodontal li…
Complexes featuring lanthanide silicon bonds represent a research area still in its infancy. Herein, we report a series of Cp-free lanthanide (+II) complexes bearing σ-bonded silyl ligands. By reactions of LnI2 (Ln = Yb, Eu, Sm) either with a 1,4-oligosilanyl dianion [K-Si(SiMe3)2SiMe2SiMe2Si(SiMe3)2-K)] (1) or with 2…
The natural biopolymer chitosan has versatile applications in therapeutic delivery. Coating drug delivery matrices or biomaterials with chitosan offers several advantages in drug delivery, including control of drug release, slowing degradation rate and improving biocompatibility. Advanced uses of chitosan in coating f…
Planar heterojunction perovskite solar cells (PHJ-PSCs) based on CH3NH3PbI3/TiO2 with high-quality CH3NH3PbI3 films were fabricated by two-step interdiffusion technology. The photovoltaic performance of PHJ-PSCs, including short-circuit-current (Jsc) and open-circuit-voltage (Voc), was found to be strongly dependent o…
A simple, extensible control software scheme for sequential deposition applications including atomic layer deposition, molecular beam epitaxy, and layer-by-layer deposition is presented. While single-component loops are easily programmed, nested loop architectures needed for complex multilayer thin films or compositio…
The aim of the current research is concentrated on the synthesis of the different nanoparticles such as SnO2 and ZnO nanoparticles and SnO2-ZnO hybrid via sol gel method to investigate their photocatalytic applications for removal of methyl orange pollutant in water. Therefore, ZnCl2 and SnCl2.2H2O were used as ZnO an…
Nanoparticle-based therapeutics are poised to play a critical role in treating disease. These complex multifunctional drug delivery vehicles provide for the passive and active targeted delivery of numerous small molecule, peptide and protein-derived pharmaceuticals. This article will first discuss some of the current…
The study investigated the reversal of multidrug resistance (MDR) and the biodistribution of nanoparticles (NPs) that target leukemia cells in a nude mice model via a surface-bound transferrin (Tf). The cytotoxic cargo of daunorubicin (DNR) and tetrandrine (Tet) was protected in the NPs by an outer coat composed of po…
Natural iron-bearing sodic phonolitic melts represent an extreme compositional range of the effect of the [Na/(Na+K)] ratio on the geochemical behavior of Fe in volcanic systems. Yet phonolitic melts have not been well investigated. The glasses studied here have been synthesized from liquids equilibrated over a range…
We report the development of a surface-enhanced Raman scattering (SERS)-based heavy metal ion sensor targeting the detection of mercury(II) ion (Hg(2+)) and copper(II) ion (Cu(2+)) with high sensitivity and selectivity. To achieve the detection of vibrational-spectroscopically silent heavy metal ions, the SERS substra…
A hybrid MP2:DFT (second-order Møller-Plesset perturbation theory-density functional theory) method that combines MP2 calculations for cluster models with DFT calculations for the full periodic structure is used to localize minima and transition structures for proton jumps at different Brønsted sites in different fram…
In this work, a MOS memory with 4.56-nm ultrathin Al2O3-TiO2nanolaminates thin film deposited by Atomic Layer Deposition (ALD) followed by 1-nm HfO2tunnel oxide deposited by Plasma-Assisted ALD is studied. The charge trapping layer consists of 2.85-nm Si-nanoparticles (Si-NPs). A memory effect is observed using high f…
Metal phosphides, including Ni2P, MoP, WP, and CoP, are novel active hydrotreating catalysts with high potential as high-performance catalysts due to their higher hydrogenation activity, which is essential in the hydrodesulfurization of bulky sulfur-containing molecules and in hydrodenitrogenation, compared to convent…