Materials Literature
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We report the characterization of the layered rare-earth manganese oxyselenide ${\text{La}}_{2}{\text{O}}_{3}{\text{Mn}}_{2}{\text{Se}}_{2}$. The susceptibility data show a broad maximum near 350 K, indicating the existence of two-dimensional (2D) short-range ordering in this compound. A sharp feature associated with…
The development of viable and functional tissue-engineered heart valves (TEHVs) is a challenge that, for almost two decades, the scientific community has been committed to face to create life-lasting prosthetic devices for treating heart valve diseases. One of the main drawbacks of tissue-based commercial substitutes,…
Herein, we report the first systematic and unbiased evaluation of the BODIPY fluorophore library against a wide panel of biologically relevant molecules, and discoveries of 2 novel fluorescent probes for BSA and dopamine.
Gold-silver bimetallic nanoparticles (including alloy, core-shell and nanocage structure) are good noble metal nanomaterials with unique properties which have widespread applications in electronic, photonic, chemical and biological fields. Especially in recent years, more and more investigators are motivating this adv…
Superparamagnetic core/shell nanoparticles, composed of a free-standing Fe 3 O 4 magnetic core inside a hollow nanoporous silica shell, have been synthesized, and their structures and magnetic and drug release behavior were systematically investigated. The hollow/nanoporous silica shells, containing secondary amine gr…
The influence of the surface tension of the liquid (γla) on the material formed upon aerating mixtures of the liquid and fluoroethylene particles is investigated. For non-polar oils of relatively low tension, an oil dispersion of particles is formed as the liquid wets the particles. For polar liquids of relatively hig…
We propose a novel method of oxide crystal growth via atomic-additive mediated amorphization. By utilizing this method, solid-phase crystallization (SPC) of ZnO from amorphous phase has been successfully demonstrated via nitrogen atom mediation. The resultant SPC-ZnO films are highly orientated and the crystallinity i…
In this study, biodegradable composites based on jute and polylactic acid (PLA) were prepared by a film-stacking process. The effect of jute fiber content, processing temperature, and alkali treatment on the structure and mechanical properties of jute—PLA composites were investigated. The interfacial structure between…
Reduced dimensionality and strong electronic correlations, which are among the most important ingredients for cupratelike high-${T}_{\text{c}}$ superconductivity, characterize also the physics of nickelate-based heterostructures. Starting from the local-density approximation we arrive at a simple two-band model for qu…
We demonstrate a simple method for the fabrication of rough silicon surfaces with micro- and nanostructures, which exhibited superhydrophobic behaviors. Hierarchically rough silicon surfaces were prepared by copper (Cu)-assisted chemical etching process where Cu nanoparticles having particle size of 10-30 nm were depo…
A new concept of dielectric subwavelength grating has emerged. This grating leverages a high contrast in refractive indices for the grating medium and its surroundings. We will discuss how high-index-contrast grating (HCG) can manipulate light to achieve various extraordinary properties. We will discuss various design…
In this paper, we report an investigation of the ferromagnetic state and the nature of ferromagnetic transition of nanoparticles of La 0.67 Ca 0.33 MnO 3 using magnetic measurements and neutron diffraction. The investigation was performed on nanoparticles with crystal size down to 15 nm. The neutron data show that eve…
Neutral sugar-bearing tetraphenylethenes (TPE) are designed and prepared as "turn-on" luminescent sensors for lectins and glycosidases based on aggregation-induced emission. Through aggregation derived from carbohydrate-lectin binding, multivalent mannosyl-bearing TPE shows a good selectivity and sensitivity to Con A…
A simple procedure has been developed for preparing high aspect ratio nanotubes of α-Fe 2 O 3 and Co 3 O 4 with diameters less than 100 nm and wall thicknesses less than 25 nm based on an appropriate heat treatment of electrospun polymeric fibers containing Fe(III) and Co(II) ions. The transformation of the as-prepare…
Although efficient in heat generation, gold nanoparticles dedicated for photostimulated localized hyperthermia treatment (LHT) lack luminescent properties suitable for detection in heterogeneous and autofluorescent tissue. Here, we study and report the use of bifunctional luminescent neodymium (Nd3+) ions doped α-NaYF…
Surface-enhanced Raman spectroscopy is performed on pairs of gold nanoparticles, for which the nanoparticles in each pair have different shapes. The dimers therefore exhibit two plasmon resonances. These structures, termed mixed dimer double-resonance substrates, enable strong field enhancement at pump and Stokes freq…
Pristine graphene is a semimetal and thus does not have a band gap. By making a nanometer scale periodic array of holes in the graphene sheet a band gap may form; the size of the gap is controllable by adjusting the parameters of the lattice. The hole diameter, hole geometry, lattice geometry, and the separation of th…
A two-dimensional hexagonal ordered mesoporous polymer-silica hybrid nanoparticle (PSN) material was synthesized by polymerization of acrylate monomers on the surface of SBA-15 mesoporous silica nanoparticles. The structure of the PSN material was analyzed using a series of different techniques, including transmission…
The combined effect of filler networking and reduced chain mobility close to the filler interface is analyzed based on investigations of the relaxation dynamics of a solution of styrene butadiene rubber filled with different loadings and types of nanostructured carbon blacks. Dynamic-mechanical and dielectric spectra…
The issue of appropriate testing strategies has been raised for the genotoxicity assessment of nanomaterials. Recently, efforts have been made to evaluate the adequacy of Organisation for Economic Co-operation and Development-standardised tests to assess the genotoxicity of nanomaterials. The aim of this review was to…