Materials Literature
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Uniform Cu2O nanocubes with various sizes were synthesized by reducing Cu(OH)2 using ascorbic acid in the presence of various amounts of sodium citrate. The monodispersed nanocubes with an edge length of approximately 80 nm used as an anode exhibit excellent lithium storage behavior.
Rough structures created from bulk materials at the surface could have superior durability. Superhydrophobic colorful surfaces were fabricated through chemical etching of the fiber surfaces, followed by diffusion of fluoroalkylsilane into fibers. The obtained superhydrophobic textiles show strong durability against se…
A very important yet really challenging issue to address is how to greatly increase the energy density of supercapacitors to approach or even exceed those of batteries without sacrificing the power density. Herein we report the fabrication of a new class of ultrahigh surface area hierarchical porous carbon (UHSA-HPC)…
In this paper, we will investigate the first- andsecond-order implicit-explicit schemeswith parameters for solving the Allen-Cahn equation.It is known that the Allen-Cahn equation satisfies a nonlinearstability property, i.e., the free-energy functional decreasesin time. The goalof this paper is to consider implicit-e…
Up to now, photoresponsive hydrogels and ionogels based on poly(N-isopropylacrylamide) copolymerised with pendant spiropyran groups require exposure to external acidic solution (usually milimolar HCl) to generate the swollen gel prior to photo-triggered contraction. This serious functional limitation has been solved b…
Functional graphene nanostructures of interesting physical and chemical properties have been attracting lots of research effort. In this feature article we focus on some of the recent work of dimension-tailed graphene contributed by us and others, and review the current trends in the tunable and controllable preparati…
The polyaniline (PANI) powder with globular sponge-like morphology was prepared by chemical solution polymerization, and its morphology and chemical structure were characterized by scanning electron microscope (SEM) and Fourier transform infrared spectroscopy (FTIR), respectively. The single electrode of electrochemic…
The influence of polyethylene glycol (PEG) grafting on the pharmacokinetics, biodistribution and elimination of iron oxide nanoparticles is studied in this work. Magnetite nanoparticles (12 nm) were obtained via thermal decomposition of an iron coordination complex as a precursor. Particles were coated with meso-2,3-d…
Optical properties of nanostructured materials, isolated nanoparticles, and structures composed of both metals and semiconductors are broadly discussed. Fundamentals of the origin of surface plasmons as well as the surface plasmon resonance sensing are described and documented on a number of examples. Localized plasmo…
Singlet oxygen is a very important reactive oxygen species (ROS) involved in peroxidation of olefins and polymers, as well as in clinical photodynamic therapy treatments of tumors. Previously, it was reported that singlet oxygen can be formed via sensitization by spherical metal nanoparticles upon photo-excitation of…
We report a simple one step protocol for the preparation of fairly monodisperse and highly water-soluble magnetic iron oxide nanoparticles (MIONs) through a co-precipitation method using a novel multifunctional, biocompatible and water-soluble polymer ligand dodecanethiol–polymethacrylic acid (DDT–PMAA). DDT–PMAA owin…
A simple solvothermal strategy has been developed to synthesize highly stable, pure phased CoO and Co3O4 nanoparticles from Co(CH3COO)2·4H2O precursor in ethanol solvent at 220 °C. The various phases of cobalt oxide (cubic CoO and Co3O4) with controlled size and morphologies viz, nanocubes, hexagonal platelets and nan…
Polypyrrole (PPy) nanofibers and composites, containing PPy and multiwalled carbon nanotubes (MWCNTs), were used for the fabrication of electrodes of electrochemical supercapacitors (ES). It was found that cationic malachite green (MG) dye adsorbed on PPy and MWCNTs and allowed their efficient electrosteric dispersion…
Owing to their unique photo-physical properties, rare-earth ions-doped upconversion nanoparticles (UCNPs) have attracted extensive attention in recent years. UCNPs have many special merits, such as a long luminescence lifetime, narrow emission band widths, high quantum yields and low toxicity, which allows their poten…
A simple reaction process is developed to synthesize blue, green, yellow and red colour graphene nanoparticles (GNPs) from carbon fibers. Here, we have focused on synthesis of near infra-red GNPs and their biological application for optical imaging of deep tissues and organs.
Polymer-based anti-reflective coatings (ARCs) on glass pose major challenges for outdoor photovoltaic applications due to their incompatible mechanical and thermal properties. Here we demonstrate durable, chemically and thermally stable polyhedral oligomeric silsesquioxane-based (POSS) anti-reflective moth's eye nanos…
An efficient red phosphor based on the substitution of Mn4+ for Ti4+ in the lattice of Mg2TiO4 was prepared through a sol–gel route. The phosphor was characterized by X-ray diffraction (XRD), electron paramagnetic resonance (EPR) and UV-vis spectroscopy and the luminescent properties of the samples with varying Mn4+ c…
Different amine functionalized K10 montmorillonites were hydrothermally fabricated by a simple method of treatment of the neat clay with different amine solutions and used as heterogeneous catalysts towards the Knoevenagel condensation reaction. Catalytic results show that the di-amine functionalized K10 montmorilloni…
In this study, primary and tertiary amine bifunctional graphene oxide (GO-NH2-NEt2) was prepared by silylanization of graphene oxide (GO) with amine-terminal silanes. The obtained GO-NH2-NEt2 was characterized by infrared spectrum (FTIR), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), high-r…
A new gold complex that shows the AIE effect as well as the thermochromic fluorescence switch is reported. This interesting phenomenon is attributed to changes in the intermolecular Au∙∙∙Au interactions and the formation of nano-aggregates.