Materials Literature
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Abstract We report the synthesis of porous poly(ethylene glycol)–polyurethane (PEG‐PU) hydrogels using PEG‐4000 as a soft segment and 4,4′‐methylenebis(cyclohexylisocyanate) as a hard segment. The degree of swelling in the hydrogels could be controlled by varying the amount of crosslinking agent, namely 1,2,6‐hexanetr…
In this work, finite-element analysis method is adopted to simulate Al particle deposition behavior on Mg substrate by cold spray. The effects of particle parameters such as incident velocities and angles, particle sizes, and number and types of incident particles on impacting character are analyzed. The particle ener…
Scanning electrochemical microscopy (SECM) can image graphene oxide (GO) flakes on insulating and conducting substrates. The contrast between GO and the substrate is controlled by the electrostatic interactions that are established between the charges of the molecular redox mediator and the charges present in the shee…
Abstract Although proteins are naturally good adhesives, often the most economical source has a significant carbohydrate component. Our prior studies have shown that commercial soy protein isolates (CSPI) give very good dry and wet bond strength for wood bonding, but the strengths are much lower for soy flour, especia…
We determined the crystal structure of Ba$_2$CoSi$_2$O$_6$Cl$_2$, which was synthesized in this work, and investigated its quantum magnetic properties using single crystals. This compound should be described as a two-dimensionally coupled spin-1/2 XY-like spin dimer system. Ba$_2$CoSi$_2$O$_6$Cl$_2$ exhibits a stepwis…
Discretization techniques such the finite element method, the finite volume method or the discontinuous Galerkin method are the most used simulation techniques in ap-plied sciences and technology. These methods rely on a spatial discretization adapted to the geometry and to the prescribed distribution of element size.…
The interaction of fullerenes with transition metal surfaces leads to the development of an atomic network of ordered vacancies on the metal. However, the structure and formation mechanism of this intricate surface reconstruction is not yet understood at an atomic level. We combine scanning tunneling microscopy, high…
The element-specific magnetization and ordering in trilayers consisting of 0.3--1.4 monolayer (ML) thick Fe layers embedded in Pd(001) has been determined using x-ray resonant magnetic scattering. The proximity to Fe induces a large moment in the Pd which extends $\ensuremath{\sim}2\phantom{\rule{0.16em}{0ex}}\mathrm{…
In this review, we systematically summarize our recent work on how metal-organic frameworks (MOFs) are constructed via custom design of organic ligands and beyond. Following a brief introduction of basic concepts and general background of MOFs, we explain how to fine-tune MOFs' structures via the design strategy of ne…
The inverse modeling of heat transfer is a useful tool in analyzing contact heat transfer at the ingot surfaces during the continuous casting process. The determination of the boundary conditions involves an experimental work consisting in the evaluation of the thermal history, generally at the casting surface, experi…
This paper investigates the effect of different concentrations of nanostructured materials: fullerene-like (C60), onion-like carbon (OLC) and ultradispersed diamonds (UDD) on the formation of multicellular spheroids. The chemical composition and purity of nanomaterials are controlled by Fourier transform infrared spec…
We describe dynamics of spin and valley transitions driven by alternating electric fields in quantum dots defined electrostatically within semiconducting carbon nanotubes (CNT). We use the tight-binding approach to describe the states localized within a quantum dot taking into account the circumferential spin-orbit in…
This article reports a method for control of spatial location of nanoparticles (NPs) in hybrid micellar hydrogels of a thermosensitive ABA triblock copolymer and polymer brush-grafted NPs (hairy NPs), either inside or outside the core of micelles, and the study of the effect of different locations of NPs on gel proper…
A tetracarboxylic acid-appended thiacalix[4]arene-based ligand with Tb(3+) formed a supramolecular gel which showed novel fluorogenic sensor capability for probing alanine and proteins containing alanine.
Two novel transition-metal-based tellurite-sulfate compounds M 3 (TeO 3 )(SO 4 )(OH) 2 ·2H 2 O (M = Ni, Co) have been successfully obtained through a conventional hydrothermal method. The titled compounds feature a quasi-2D layer structure with a distorted striped kagomé lattice constructed by magnetic M 2+ ions. We n…
In this paper, we present an approach to ultrasonic beam-forming and beam-steering in structures based on the concept of embedded acoustic metamaterial lenses. The lens design exploits the principle of acoustic drop-channel that enables the dynamic coupling of multiple ultrasonic waveguides at selected frequencies. In…
We report a new approach for fabricating pyrite (cubic FeS2) thin films via a non-vacuum direct solution coating route using iron-acetate dissolved in ethanol as a precursor solution. The precursor ink is deposited by spin coating and annealed in air at 300 °C to produce amorphous iron oxide films. Subsequent heat tre…
This study examines the potential use of porous polycaprolactone (PCL) and polycaprolocatone/hydroxyapatite (PCL/HA) scaffolds fabricated through melt molding and porogen leaching for bone tissue engineering. While eliminating organic solvents is desirable, the process steps proposed in this study for uniformly disper…
In this work, the solution-processed CH3NH3PbI3 perovskite/copper indium disulfide (CuInS2) planar heterojunction solar cells with Al2O3 as a scaffold were fabricated at a temperature as low as 250°C for the first time, in which the indium tin oxide (ITO)-coated glass instead of the fluorine-doped tin oxide (FTO)-coat…
The microstructure of blend films of conjugated polymer and fullerene, especially the degree of mixing and crystallization, impacts the performance of organic photovoltaic devices considerably. Mixing and crystallization affect device performance in different ways. These phenomena are not easy to screen using traditio…