Materials Literature
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The spallation phenomena in poly- and single-crystal synthetic diamonds have been experimentally investigated. A shock-wave impact on a target was implemented using a laser pulse in the Kamerton-T facility. The ablation pressure of on the front target surface was formed by pulsed radiation of a neodymium phosphate gla…
This paper presents a feasibility study of natural fiber-tin lead alloy composite material for engineering application. The specimen aluminum mold plate was made using a laser cutting machine. Rice husk was selected for introduction to the tin-lead alloy composite. Sand casting techniques and a hot press molding machi…
The linear and nonlinear optical (NLO) properties of methoxybenzylidene (1) and thiophen-2-ylmethylidene (2) tetrahydronaphthalone derivatives are studied using long-range corrected density functional theory (LC-DFT). The calculated hyperpolarisabilities indicate that both compounds have measurable NLO properties (app…
ZnO is an attractive material for both electrical and optical applications due to its wide bandgap of 3.37 eV and tunable electrical properties. Here, we investigate the application potential of atomic-layer-deposited ZnO in uncooled microbolometers. The temperature coefficient of resistance is observed to be as high…
In this study, we have demonstrated feasibility of a semi-quantitative approach for the estimation of cellular SiO2 nanoparticles (NPs), which is based on the flow cytometry measurements of their normalized side scattering intensity. In order to improve our understanding on the quantitative aspects of cell-nanoparticl…
We report an interesting process whereby the formation of nanoparticle assemblies on and nanoporosities within calcite crystals is directed by an intrinsically disordered C-RING mollusk shell nacre protein, AP7. Under mineralization conditions, AP7 forms protein phases that direct the nucleation of ordered calcite nan…
Thermal analysis techniques such as thermogravimetric analysis (TGA) have been widely used because they provide rapid quantitative determination of various processes under isothermal or non-isothermal conditions. It allows the estimation of effective kinetic and thermodynamic parameters for various decomposition and t…
Flexible and rigid green polymers foam were prepared by the reaction of polyol based on waste vegetable oil with commercial Polymethane Polyphenyl Isocyanate (Modified Polymeric-MDI) and Diisocyanate-diphenylmethane (Abou-El-Hossein, Kadirgama, Hamdi, & Benyounis). The effect of the Ultraviolet (Annie Paul et al.) on…
Semi-interpenetrated networks were obtained by free radical polymerization/cross-linking of substituted anhydride modified collagen with 2-hydroxyethyl methacrylate (HEMA) in the presence of ammonium persulfate (APS) and N, N, N ′, N ′-tetramethyl ethylene diamine (TEMED). Substituted anhydride modified collagens, por…
ABSTRACT Superhydrophobic surfaces can be obtained by tailoring both the chemistry and roughness topography, mimicking the Lotus leaf characteristics. Most of the synthetic superhydrophobic surfaces reported have been composed of micro and nanoparticles (NPs) embedded in polymer‐based coatings. The particles which tai…
The effect of graphene nanosheets (GNS) on the fire and mechanical performances of glass fiber-reinforced polyamide 6 composites containing aluminum hypophosphite (GFPA6) was investigated. Results indicated that the introduction of GNS played little role in improving the thermal stability and fire retardancy of the GF…
Abstract Cellulose‐based materials have been and continue to be exceptionally important for humankind. Considering the bioavailability and societal relevance of cellulose, turning this renewable resource into an active material is a vital step towards sustainability. Herein we report a new form of cellulose‐derived ma…
We found that Cd0.5Zn0.5S-ZnS core (4.2 nm in diameter)-shell (1.2 nm in thickness) quantum dots (QDs) demonstrated a typical energy-down-shift (2.76-4.96 → 2.81 eV), which absorb ultra-violet (UV) light (250-450 nm in wavelength) and emit blue visible light (∼442 nm in wavelength). They showed the quantum yield of ∼8…
By a combination of optical second harmonic generation and transport measurements, we have investigated interfaces formed by either crystalline or amorphous thin films of LaAlO3 grown on TiO2-terminated SrTiO3(001) substrates. Our approach aims at disentangling the relative role of intrinsic and extrinsic doping mecha…
We demonstrate that for high yield wet synthesis of monodispersed nanoparticles high surfactant content bicontinuous microemulsions offer an advantageous template as particle size is limited by the embedding matrix whereas particle aggregation is largely prohibited by its structure. We synthesized platinum nanoparticl…
Crystallization of materials has attracted research interest for a long time, and its mechanisms in three-dimensional materials have been well studied. However, crystallization of two-dimensional (2D) materials is yet to be challenged. Clarifying the dynamics underlying growth of 2D materials will provide the insight…
Phthalocyanines are ideal components in a variety of electronic applications due to their extraordinary photophysical characteristics combined with their synthetic versatility and robustness. They have attracted substantial attention in recent decades and are now established building blocks of sophisticated molecular…
We present an active microwave metamaterial composed of orthogonally arranged cut wires and positive-intrinsic-negative diodes, having capability of high-speed response. When a forward voltage is applied to turn the diodes on, analogue spectral response of a classical electromagnetically induced transparency is observ…
We calculate the energy bands for graphene monolayers when electrons move through a periodic electrostatic potential in the presence of a uniform perpendicular magnetic field. We clearly demonstrate the quantum fractal nature of the energy bands at reasonably low magnetic fields. We present results for the energy band…
The use of nanoparticle carriers for the sustained release of cytotoxic drugs in cancer therapy can result in fewer adverse effects and can thus be of great benefit for the patient. Recently, a novel nanocomposite, prepared by the encapsulation of THCPSi nanoparticles within solid lipids (SLN), was developed and chara…