Materials Literature
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A dry gel conversion synthesis aided by fine-grinding of the synthesis precursors produces a MIL-101 product with a high surface area greater than 4100 m(2) g(-1) and a product yield approaching 90% in a very reproducible manner after only simple water washing.
Crashworthiness of cellular metals with a linear density gradient was analyzed by using cell-based finite element models and shock models. Mechanisms of energy absorption and deformation of graded cellular metals were explored by shock wave propagation analysis. Results show that a positive density gradient is a good…
Oncoprotein platelet derived growth factor-BB (PDGF-BB) is one of the most critical growth factors that regulates tumor growth and division. In this work, a highly sensitive and selective fluorescence resonance energy transfer (FRET) aptasensor for PDGF-BB detection based on the assembly of dye-labeled aptamer and gra…
Nanoparticles that are made by self-assembly into non-spherical shapes are promising as drug delivery vehicles. This review focuses on flexible and fragmentable filamentous micelles referred to as filomicelles made of degradable block copolymer amphiphiles. They are inspired by filoviruses and also by tubular proplate…
A flower-like MoS2–SiC hybrid structure assembled from folded MoS2–SiC nanosheets can activate hydrogen evolution at a very low overpotential (0.04 V) and produce a large cathodic current, which compares favorably with that produced by a commercial 20 wt% Pt/C catalyst.
The magnetic 10Fe5Ca MBG scaffolds (Fe3O4–CaO–SiO2–P2O5 system) have been prepared by a combination of polyurethane sponge and P123 as co-templates and an evaporation-induced self-assembly (EISA) process through the substitution of Fe3O4 for CaO in the 15Ca MBG scaffolds (CaO–SiO2–P2O5 system). The structure, magnetic…
Fluorinated main chain benzoxazine polyethers were prepared by Ullmann coupling of fluorinated benzoxazines in the presence of a nano-copperoxide catalyst. Various parameters such as the monomer structure, temperature, and the effect of catalyst on the polymerization were studied. The benzoxazine groups present in the…
In this paper, we demonstrate a simple and practical method to prepare chemically crosslinked gelatin-based hydrogels using β-cyclodextrin (β-CD) that plays a dual role as a crosslinker as well as a host molecule for enhanced binding of anticancer drug methotrexate (MTX), to achieve high drug loading level as well as…
We report the design and realization of double shelled @CeO2/M@M/TiO2 (M = Au and/or Pd) nanospheres with dual noble metal nanoparticles encapsulated in metal oxide shells via a layer-by-layer deposition process followed by an alkali etching method. The resulting nanospheres possess uniform sizes, variable shell compo…
Triphenylphosphonium-fluorochromes (TPP-fluorochromes) are a new class of spectrally variable, mitochondrially targeted probes, with an [(18)F] labeling option which, when enabled, allows imaging of a cardiac perfusion deficit using PET/CT.
We investigated the mechanical properties of metal–organic framework thin-film coatings grown by an electrochemical method, which allows fast deposition in environmentally friendly solvents. For the first time, Cu(CHDA) and Cu(INA)2 are electrochemically synthesised as dense coatings on Cu-electrodes, alongside the we…
It is well-known that amino acids deposited on some inorganic oxides undergo peptidic condensation. It is seldom realised however that a large diversity of behaviours can be observed in such systems. Here we use the apparently simple case of glycine-non-porous silica as a reference system, in which glycine (Gly) dimer…
p-Type nanocrystal NiO-based thin-film transistors (TFTs) are fabricated by simply oxidizing thin Ni films at temperatures as low as 400 °C. The highest field-effect mobility in a linear region and the current on-off ratio are found to be 5.2 cm(2) V(-1) s(-1) and 2.2 × 10(3), respectively. X-ray diffraction, transmis…
Esterifications of poly(methacrylic acid) (PMAA) and poly(acrylic acid) (PAA) have been investigated with a wide variety of halogenated compounds such as iodide, bromide, and chloride using 1,1,3,3-tetramethylguanidine as a promoter. The results demonstrate that the poly(meth)acrylates can be obtained with an excellen…
BACKGROUND: Scanning electron microscopy (SEM) has been used for high-resolution imaging of plant cell surfaces for many decades. Most SEM imaging employs the secondary electron detector under high vacuum to provide pseudo-3D images of plant organs and especially of surface structures such as trichomes and stomatal gu…
Aligned carbon nanotube–oriented poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) composites show an unexpectedly high catalytic activity which greatly exceeds the aligned individual components, the non-aligned composite counterpart, and even conventional platinum. When they are used as counter electrodes in d…
In this work we further the structural characterization of the recently discovered (C3N2H5)[Mn(HCOO)3] metal–organic framework with perovskite-like structure, and we present its magnetic and dielectric properties up to 350 K. At low temperature, the C3N2H5+ imidazolium cations, that sit oblique within the cavities of…
Porous single-crystal-like CdS nanosheets fabricated through a facile cation-exchange strategy exhibit a noticeable photocatalytic activity for aerobic oxidative coupling of amines to imines with 1 atm O2 under visible-light irradiation (λ > 420 nm) at room temperature.
Epoxides are important intermediates of atmospheric isoprene oxidation. Their subsequent reactions in the particle phase lead to the production of organic compounds detected in ambient aerosols. We apply density functional theory to determine the important kinetic factors that drive epoxide reactions in the particle p…
Black silicon is an interesting surface texture for solar cells because of its extremely low reflectance on a wide wavelength range and acceptance angle. In this paper we present how black silicon (b-Si) texturization can be applied on the boron doped front surface of an n-type solar cell resulting in an efficiency of…