Materials Literature
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Dihydroxyacetone (DHA) kinase from Citrobacter freundii provides an easy entry for the preparation of DHA phosphate; a very important C3 building block in nature. To modify the phosphoryl donor specificity of this enzyme from ATP to inorganic polyphosphate (poly-P); a directed evolution program has been initiated. In…
The initial austenite grain size of boron microalloyed steel with three different amounts of boron (20, 40, and 60 ppm) was investigated under different heating temperatures (1150, 1100, and 1050 °C), and hot compression tests of samples in a wide range of temperature (900–1100 °C) and strain rate (0.1–10 s−1) were co…
Organic photovoltaic materials have recently seen intense interest from the research community. Improvements in device performance are occurring at an impressive rate; however, visualization of the active layer phase separation still remains a challenge. This paper outlines the application of two electron energy-loss…
Titanate nanotubes are promising materials for Li-ion battery anodes because of their special morphology and high specific surface areas. These titanates provide high rate capability and low volume expansion upon lithiation. More importantly, their tubular structure helps the transport of ions through the crystal. In…
We conducted a molecular dynamics simulation to investigate current inversions in a nanosized water pump based on a single-walled carbon nanotube powered by mechanical vibration. It was found that the water current depended sensitively on the frequency of mechanical vibration. Especially in the resonance region, the n…
ABSTRACT In this article, a hydrophobically associating copolymer (2‐acrylamido)‐2‐methylpropanesulfonic acid (AMPS)/AA‐EO25C12 was synthesized by AMPS and nonionic surfmer AA‐EO25C12 through free radical copolymerization. The structure of copolymer was characterized by FT‐IR and 1H‐NMR. The properties of copolymer we…
The peptide amyloid-β (Aβ) interacts with membranes of cells in the human brain and is associated with Alzheimer's disease (AD). The intercalation of Aβ in membranes alters membrane properties, including the structure and lipid dynamics. Any change in the membrane lipid dynamics will affect essential membrane processe…
This report describes the first detailed electrochemical examination of a series of copper birnessite samples under lithium-based battery conditions, allowing a structure/function analysis of the electrochemistry and related material properties. To obtain the series of copper birnessite samples, a novel synthetic appr…
Abstract A short overview of recent advances in studies of the interactions between natural polymers and application of polymers from natural sources as components of the blends for biomedical and cosmetic applications is presented. This work is focused on the blends of collagen, chitosan, silk fibroin and keratin. Th…
Cold atmospheric plasma (CAP) treatment of biological surfaces results in important changes of biological functions, but little knowledge on specific surface‐chemical changes is available. We measured surface‐bound NO3on polymer and biomolecular films after CAP treatment. An O2/N2‐based surface microdischarge was used…
Transport measurements with in-situ XRD reveal low alkyl side-chain densities to induce an ordered helicoidal conformation with large electronic energy disorder.
The Rh-catalyzed hydroformylation of the CC double bonds of triglycerides ( T ) was performed in aqueous medium through the formation of supramolecular complexes resulting from the inclusion of the alkenyl chains of T into the cavity of modified cyclodextrins (CDs).
We discuss the main findings of a long-term research program exploring the consequences of sodium/calcium ion exchange on the macroscopic osmotic and elastic properties, and the microscopic structure of representative synthetic polyelectrolyte (sodium polyacrylate, (polyacrylic acid)) and biopolymer gels (DNA). A comm…
ABSTRACT The formation of materials with switchable wettability is extremely important for various applications such as in separation membranes or liquid transportation. Here, we report for the first time the use of imine bonds in order to prepare switchable hydrophobic/hydrophilic surfaces. Based on a poly(3,4‐ethyle…
We use the Vienna ab initio simulation package (vasp) for evaluation of the quasiparticle spectra and their spectral weights within Hedin's $\text{GW}$ approximation (GWA) for ${\text{Fe}}_{3}\text{Si}$ and $\ensuremath{\alpha}{\text{-FeSi}}_{2}$ within the non-self-consistent one-shot approximation ${\text{G}}_{0}{\t…
A self‐made microplasma jet array device is used to treat deoxyadenosine (dA) and adenosine (Ado) solutions to avoid the effect of air on genetic materials. Results show that Ado is easily converted into dA through deoxidation reaction. In addition, dA solution is treated with different microplasma arrays (i.e., atmos…
Abstract The self‐assembly of M2(CO)10 (M = Mn, Re), oxamide ligands [H2L = N,N′‐dibutyloxamide (dbo), N,N′‐dibenzyloxamide (dbno)], and flexible bidentate linkers [L′ = 1,2‐bis(4‐pyridyl)ethane (bpe), 1,3‐bis(4‐pyridyl)propane (bpp)] afforded MnI‐ and ReI‐based dinuclear metallacycles [(CO)3M(μ‐η4‐L)(μ‐L′)M(CO)3] (1–…
Breaching activities are required for military operations in urban environment and for firefighters in emergency situations for saving lives. Explosive wall breaching is a key capability in military operations in urban terrain environments where the close proximity of urban structures significantly restricts the use o…
A new family of flexible metal–organic supercontainers exhibit selective binding with cationic guests and tunable supramolecular catalytic activity.
Abstract Low‐temperature plasticity is a deformation mechanism that occurs mainly at high stress and low temperatures and may be important in the shallow lithosphere, at the tips of cracks, and in laboratory experiments. Previous studies investigating the low‐temperature plasticity of the mineral olivine have exhibite…