Materials Literature
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Depending on the synthetic conditions (surfactant, acid, base, and presence or absence of TEOS), the sol–gel polymerization of functionalized polyorganosiloxane affords various textured silica-based materials.
Abstract Metal ion signaling in biology has been studied extensively with ortho‐nitrobenzyl photocages; however, the low quantum yields and other optical properties are not ideal for these applications. We describe the synthesis and characterization of NTAdeCage, the first member in a new class of Zn 2+ photocages tha…
Borneol, one of the commonly used Chinese medicines, can be used to treat many diseases. The main ingredient of natural borneol is d-borneol extracted from the volatile oil of dipterocarp trees. Numerous studies have proved the effectiveness of borneol. It has been widely used in relieving symptoms of anxiety, fatigue…
Largely motivated by a number of applications, the van der Waals dispersion coefficients ${C}_{3}$ of the alkali-metal ions ${\mathrm{Li}}^{+},\phantom{\rule{0.16em}{0ex}}{\mathrm{Na}}^{+},\phantom{\rule{0.16em}{0ex}}{\mathrm{K}}^{+}$, and ${\mathrm{Rb}}^{+}$, the alkaline-earth-metal ions ${\mathrm{Ca}}^{+},\phantom{…
Chiral molecular crystals built up by chiral molecules without inversion centers have attracted much interest owing to their versatile functionalities related to optical, magnetic, and electrical properties. However, there is a difficulty in chiral crystal growth due to the lack of symmetry. Therefore, we made the mol…
The biodistribution of biodegradable nanoparticles can be difficult to quantify. We report a method using time resolved fluorescence (TRF) from a lanthanide chelate to minimize background autofluorescence and maximize the signal to noise ratio to detect biodegradable nanoparticle distribution in mice. Specifically, an…
The detailed study of phase transition processes among various calcium sulfates is still insufficient in spite of its importance in artificial and natural processes. Here, the phase transformation γ-CaSO 4 → β-CaSO 4 → CaO is induced by electron beam irradiation and directly observed inside the transmission electron m…
We present a new strategy to form thickness-adjusted and ultrasmooth films of very large and unwrinkled graphene oxide (GO) flakes through the transfer of both hemispherical and vertical water films stabilized by surfactants. With its versatility in terms of substrate type (including flexible organic substrates) and i…
Herein, we have examined the role played by non-magnetic Mn on the magnetic properties of TiO 2 nanoparticles. The samples display complete paramagnetic behavior at room temperature as well as at 10 K. Paramagnetism might be associated with the presence of isolated magnetic spins of Mn 2+ in the system. Observation of…
We designed and fabricated two-dimensional cylindrical subwavelength gratings (SWGs) on fused silica for use in 1064 nm laser system. The transmittance and laser-induced damage threshold (LIDT) under the irradiation of 1064 nm pulses were performed, and a lower LIDT compared to blank fused silica was obtained. To unde…
Nanoporous materials have attracted significant attention as drug delivery platforms in which interfacial phenomena are often more influential than fluid mechanics in defining molecular loading capacity and release kinetics. This study employs nanoporous gold (np-Au) as a model material system to investigate physical…
If each phase has an identical crystal structure and small misfit in the lattice parameters in a binary-phase crystalline system, coherent phase boundaries usually form during separation. Although there have been numerous studies on the effect of coherency elastic energy, no attempt has been made to demonstrate how th…
Purpose: To prepare pegylated ethosomal Paclitaxel® by reverse phase evaporation technique, and evaluate its cytotoxic effect on SK-MEL-3 cell line.Methods: Nanodrug was prepared by reverse phase evaporation technique. The characteristics of the nanoparticles were evaluated by a zetasizer and scanning electron microsc…
To comply with the stringent Euro VI emission standards, two techniques have been proposed for natural gas engines, namely, lean-burn combustion with oxidation catalyst (OC) and stoichiometric combustion with three-way catalyst (TWC). In this paper, comparisons are drawn between the two techniques in terms of carbon m…
Viscous fingering (VF) is a phenomenon in which the interface between two fluids of having viscosities is fluid-dynamically unstable in porous media, with finger-like patterns forming as the less viscous fluid displacing the more viscous one. In this article, studies investigating the fundamental characteristics of th…
Flexible magnetoelectric (ME) materials have been studied for new applications such as memory, energy harvesters, and magnetic field sensors. Herein, with the widely studied and progressive advantages of ME phenomena in the multiferroic field, we demonstrate a new approach for utilizing flexible ME materials as gate d…
The flow-induced alignment of small gold nanorods ranging in aspect ratio from 2.4 to 4.2 in aqueous sucrose solutions is reported. Optical absorption spectra have been measured over a range of shear rates using polarized incident light in an optically transparent quartz Couette cell. The measured spectral changes are…
Reversible magnetic exchange springs can be formed in multilayer films, grown by molecular beam epitaxy. Here we demonstrate that small amounts of anisotropic ${\mathrm{ErFe}}_{2}$, placed in the middle of the ${\mathrm{YFe}}_{2}$ magnetic exchange springs, can bring about substantial changes. Results are presented fo…
Poly(lactic acid) (PLA) and wood flour/PLA composites were prepared and blended with two antimicrobial agents, triclosan and silver-substituted zeolite (Zeomic), using a twin-screw extruder. The mechanical and thermal properties, antimicrobial activity, and biodegradation performance were investigated. The addition of…
Structural, electronic, and optical properties of a new coumarin dye, zinc oxide (ZnO) nanoclusters of varying sizes, and their complexes have been investigated using density functional theory (DFT). The band gap of oxide nanoclusters varies with size validating quantum confinement effect in small particles. Energy le…