Materials Literature
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A photoactive electrospun material producing reactive oxygen species (ROS) upon light irradiation is reported. The phototoxicity of the generated ROS is spatially restricted to the fiber-tissue interface by conjugation of the photosensitizer to a macromolecule. Photo-triggered ROS is produced on demand and repeatedly.…
In Čerenkov radiation and transition radiation, evanescent wave from motion of charged particles transfers into radiation coherently. However, such dissipative motion-induced radiations require particles to move faster than light in medium or to encounter velocity transition to pump energy. Inspired by a method to det…
We report the formation of nanostructured toroidal micellar bundles (nTMB) from a semidilute wormlike micellar solution, evidenced by both cryogenic-electron microscopy and transmission electron microscopy images. Our strategy for creating nTMB involves a two-step protocol consisting of a simple prestraining process f…
The article presents the studies of effects of hydrothermal treatment (HTT) (in saturated water vapours or under the liquid water layer) using various sources of thermal energy (classical autoclave or high pressure microwave reactor) on structural and surface properties of initial and modified silica gels and carbon–s…
Two dimensional (2D) layered MnO 2 ultrathin nanosheets have been successfully fabricated using TMAOH aqueous solution as exfoliated solvent at room temperature. The feature of layered MnO 2 monolithic is characterized through scanning electron microscopy (SEM) and transmission electron microscopy (TEM), which show th…
The synthesis of silver nanoparticles (Ag NPs) has attracted the interest of many researchers in recent years, both from scientific and technological point of view. These NPs present unique physical, chemical and biological properties when compared to metal at a macroscopic scale, and have been used in applications su…
Abstract By fusing Lu 2 O 3 and TeO 2 in a molar ratio of 1:3 in a CsCl flux, colorless single crystals of the lutetium(III) oxotellurate(IV) Lu 2 Te 3 O 9 could be obtained as first representative of the structurally so far unknown C ‐type for the composition M 2 Te 3 O 9 . The title compound crystallizes triclinical…
Alumina–tantalum carbide (Al2O3–TaC and Al2O3–Ta2C) composites were synthesized by incorporating aluminothermic reduction into a self-propagating combustion process. The test specimens adopted were composed of Ta2O5, Al, Al4C3, and carbon powders. Experimental evidence showed that the use of Al4C3 to provide Al and ca…
Freestanding Ni(OH) 2 nanoflakes on CNT films (NNCF) electrode with high specific capacitance is effectively fabricated via a facile chemical precipitation method. The CNT films function as conductive networks and the nucleation centers of Ni(OH) 2 nanoflakes. The resulted ultrathin α-Ni(OH) 2 exhibits a high specific…
By atomistic simulations, we show that H is mainly absorbed on the surface of the crack tip in Ni and reveal that H switches from decreasing the activation energy for dislocation nucleation at low load to increasing it at high load, owing to H-reduced activation volume. This counterintuitive finding explains experimen…
We present the first spatio-temporal mapping of two simultaneously present species in a plasma used for pulsed laser deposition. We apply laser induced fluorescence spectroscopy (LIF) to map ground state populations of Al and AlO in plasma plumes generated by ablation of LaAlO 3 in an O 2 or Ar atmosphere. Around a sp…
A series of Dy3+ and Tm3+ tetra-substituted DOTAM paraCEST agents incorporating para-substituted anilines has been synthesized and their paraCEST and relaxation properties evaluated. The response of selected agents (aniline and p-methoxyaniline) to changes in pH near the physiological range has also been studied. A cr…
We present a facile, one-pot procedure for the organic-to-water phase transfer and biofunctionalization of semiconductor nanocrystals (quantum dots, or QDs) which employs a synthetic functional copolymer, namely poly(DMA-NAS-MAPS), consisting of three components: a surface interacting monomer, N,N-dimethylacrylamide (…
A novel C-Ni-SiC composite using sawtooth-like SiC as support and carbon as modified material was prepared by hydrothermal synthesis and thermochemical pyrolysis. As a supercapacitor electrode, it exhibits very high specific capacitance (1780 F g(-1)) and excellent cycling performance (>96% for 2500 cycles).
Here we present a systematic study of the effects of pressure on the superconducting and spin/charge density wave (SDW/CDW) transitions of Ba$_{1-x}$Na$_x$Ti$_2$Sb$_2$O (x = 0, 0.10, and 0.15) by means of resistivity measurements. For x = 0 and 0.10, external pressure results in a decease of the SDW/CDW transition tem…
We report neutron-scattering data and DFT calculations of the stoichiometric iron-arsenide superconductor Sr${}_{2}$VO${}_{3}$FeAs. Rietveld refinements of neutron powder patterns confirm the ideal composition without oxygen deficiencies. Experiments with polarized neutrons prove weak magnetic ordering in the V sublat…
The mechanisms for the resistance to sulfur poisoning at the triple phase boundary (TPB) of the Ni/yttria-stabilized zirconia (YSZ) system treated with Sn vapor are studied using the first-principles method based on density functional theory. Models with Sn dopant or adsorbate are proposed. It is found that the TPB mo…
After ligand exchange with PEG, Au NPs with differently mixed surface functionalities co-exist in the as-synthesized sample. It is found that the poorly grafted nanoparticles can be simply removed using a chromatographic method, and the well grafted nanoparticles can be eluted as a function of the core size.
The aim of our study was to design and evaluate Amlodipine transdermal patches using polymers such as ethyl cellulose. Matrix type transdermal patches containing Amlodipine were prepared by solvent casting method by using polymers like ethylcellulose 1 %, 1.5 %, 2 % and 2.5 % and a total of eight formulations were pre…
Graphene-based device applications such as ultrafast transistors and photodetectors benefit from precise control over its carrier type and concentration as well as a combination of both high-quality p- and n-doped components with spatial control and seamless connection (p–n junctions/superlattices). However, this rema…