Materials Literature
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We show that hyperbolic electromagnetic metamaterials, implemented as multilayers based on two material constituents arranged according to the Thue-Morse aperiodic sequence, may exhibit strong nonlocal effects, manifested as the appearance of additional extraordinary waves which are not predicted by standard effective…
With innovative modern material-growth methods, a broad spectrum of fascinating materials with reduced dimensions-ranging from single-atom catalysts, nanoplasmonic and nanophotonic materials to two-dimensional heterostructural interfaces-is continually emerging and extending the new frontiers of materials research. A…
This paper presents microfabrication methods and performance analysis of bonded powder permanent magnets targeting dimensions ranging from 10 µm to greater than 1 mm. For the structural definition and pattern transfer, a doctor blade technique is used to dry press magnetic powders into pre-etched cavities in a silicon…
Structured semifluorinated polymer ionic liquids (FPILs) contain a flexible hyperbranched polyether core connected with a covalently attached shell of imidazolium cations and perfluorinated alkyl chains at their periphery. In a facile synthesis, alkylation of tosylated poly(3-ethyl-3-hydroxymethyloxetane) (PEHO) conve…
Polymer composites filled with mineral clays are becoming attractive because of their wide applications and low cost. In this study, polymeric composite produced from unsaturated polyester (UP) based on the glycolysis of poly (ethylene terephthalate) (PET) waste with diethylene glycol (DG) and untreated or treated kao…
INTRODUCTION: Luminescent quantum dots (QDs) are widely utilized in the field of biology and medicine due to their excellent optical properties. The ultimate goal of QD research is the fabrication of favorable luminescent nanoprobes or nanocarriers. However, their toxicity and pharmacokinetics, in the human body, are…
Previously, we synthesized π-conjugated trinuclear metalladithiolene complexes based on benzenehexathiol (J. Chem. Soc., Dalton Trans.1998, 2651; Dalton Trans.2009, 1939; Inorg. Chem.2011, 50, 6856). Here we report trinuclear complexes with a triphenylene backbone. A reaction with triphenylenehexathiol and group 9 met…
Magnetic Ru-capped/FeCo nanoflowers are solvothermally synthesised through a self-catalytic growth and assembly process. The synthesised Ru-capped/FeCo nanoflowers (∼3.63 μm) consist of Ru-capped FeCo nanorods with an average diameter of ∼13 nm and a length ranging from 1.33 to 2.1 μm. A vibration sample magnetometer…
Here we describe a new method for the direct patterned synthesis of graphene meshes on Cu foils that use self-assembled silica sphere arrays as growth masks. Structural analyses based on electron microscopy and Raman spectroscopy showed that the graphene meshes are mostly single- or double-layer necks with empty holes…
We present the results of high-field magnetization and muon-spin relaxation measurements on the coordination polymer CuF${}_{2}$(H${}_{2}$O)${}_{2}$(pyrazine) in pressures up to 22.5 kbar. We observe a transition from a quasi-two-dimensional to a quasi-one-dimensional antiferromagnetic phase at 9.1 kbar, driven by a r…
The upconversion properties of Tm3+ and Yb3+ codoped CaSc2O4 phosphor excited at 980 nm are reported. The blue emission of Tm3+:1G4 → 3H6, red emission of Tm3+:1G4 → 3F4, near-infrared emissions of Tm3+:3H4 → 3H6 (800 nm) and 3F4 → 3H6 (1600 nm) are observed when excited Yb3+:2F5/2 level. The spectral properties of Yb…
This study focuses on the investigation of the influence of the ionic strength on the internal structure, film forming behavior, and swelling properties of polyelectrolyte/clay multilayers. Layer-by-layer films were prepared with three different polyelectrolytes [polyethylenimine (PEI), polydiallyldimethylammoniumchlo…
X-ray crystallography is the method of choice to deduce atomic resolution structural information from macromolecules. In recent years, significant investments in structural genomics initiatives have been undertaken to automate all steps in X-ray crystallography from protein expression to structure solution. Robotic sy…
BshB, a key enzyme in bacillithiol biosynthesis, hydrolyses the acetyl group from N-acetylglucosamine malate to generate glucosamine malate. In Bacillus anthracis, BA1557 has been identified as the N-acetylglucosamine malate deacetylase (BshB); however, a high content of bacillithiol (~70%) was still observed in the B…
The influence of the iron content on the magnetic, polar, and magnetoelectric properties of Ga 2– x Fe x O 3 ( x = 1.0; x = 1.4) polycrystalline samples was studied by a combined magnetic (SQUID) and structural (X-ray and temperature-dependent neutrons diffraction) study. As expected, the samples showed a ferrimagneti…
In this paper, 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) was synthesized and used as solvent to dissolve bamboo pulp. Dimethylsulfoxide (DMSO) was selected as cosolvent to adjust the solution viscosity. As compared with the bamboo pulp/[Bmim]Cl system, the addition of DMSO decreases the solution viscosity dramat…
A series of cholesterol-/estradiol-appended alkynylplatinum(II) complexes with tridentate N-donor ligands, based on 2,6-bis(1-alkylpyrazol-3-yl)pyridine, has been synthesized and characterized by (1)H NMR spectroscopy, FAB-mass spectrometry, and elemental analysis. Their photophysical properties have also been investi…
ABSTRACT Nanoporous or mesoporous structures and hence a decrease in dielectric constant can always be induced with the introduction of air into polymeric materials. It is therefore achievable to prepare ultra‐large‐scale integrated circuit (ULSIC) on ultralow dielectric constant (i.e., low‐ k ) materials. The researc…
In a world with ever decreasing natural reserves, researchers are striving to find sustainable methods of producing components for technology. Bioinspired, biokleptic and biomimetic materials can be used to form a wide range of technologically relevant materials under environmentally friendly conditions. Here we inves…
Abstract A superhydrophobic textile for biomedical applications is designed using chitosan‐based hydrophobic nanoparticles. The fabrication of nanoparticles is based on the electrostatic interaction between the amine group of chitosan and the negatively charged fluoroanion. The coating is formed by spraying the nanopa…