Materials Literature
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Nanoparticle shape can improve drug delivery based on the surprising effectiveness of flexible, worm-like nanocarriers (Worms) that increase the amount of drug delivered to tumors and shrink the tumors more effectively than spherical micelles (Spheres). Here, all-atom molecular dynamics (MD) simulations are used to bu…
We report the synthesis and characterization of symmetric BODIPY dyads where the chromophores are attached at the meso position, using either a phenylene bridge or direct linkage. Both molecules undergo symmetry-breaking intramolecular charge transfer in the excited state, and the directly linked dyad serves as a visi…
A facile method was developed to synthesize free-standing Si nanosheets by using graphene oxide as a template. The resulting Si nanosheets were well-crystallized and showed high and stable Li ion storage performance compared with Si nanoparticles because of the dimensional feature.
We propose a multilayer graphene-based device in which the storage and release of hydrogen are obtained by exploiting and controlling the corrugation of individual layers of graphene. By means of calculations based on the density-functional theory, we quantify the tunability of the hydrogen-graphene binding energies b…
The development of organic/inorganic hybrid nanocomposite systems that enable efficient solar energy conversion has been important for applications in solar cell research. Nanostructured carbon-based systems, in particular C(60), offer attractive strategies to collect and transport electrons generated in a light harve…
Magnetite/gold (Fe(3)O(4)/Au) hybrid nanoparticles were synthesized from a single iron precursor (ferric chloride) through a green chemistry route using grape seed proanthocyanidin as the reducing agent. Structural and physicochemical characterization proved the nanohybrid to be crystalline, with spherical morphology…
A red-emitting BODIPY-based fluorescent-resonance-energy-transfer (FRET) molecular probe 1 for selective detection of cysteine and homocysteine was designed. The fluorescence OFF–ON switch is triggered by cleavage of the 2,4-dinitrobenzensulfonyl (DNBS) unit from the fluorophore by thiols. The FRET energy donor (λabs…
In this work, organic photovoltaics (OPV) with graphene electrodes are constructed where the effect of graphene morphology, hole transporting layers (HTL), and counter electrodes are presented. Instead of the conventional poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) PEDOT:PSS HTL, an alternative transition…
Abstract Refrigeration is one of the main sinks of the German and European electricity consumption and accordingly contributes to worldwide CO 2 emissions. High reduction potentials are envisaged if caloric effects in solid materials are used. The recent discovery of giant entropy changes associated with ferroelastic…
Using a simple two step fabrication process substrates with a large and uniform Raman enhancement, based on flexible free standing nanopillars can be manufactured over large areas using readily available silicon processing equipment.
Metallosupramolecular cages are an emerging, but as of yet relativity unexplored, drug delivery vector. Herein we show that discrete dipalladium(II) molecular cages of the formula [Pd2L4](X)4 can be quantatively self-assembled from a simple tripyridyl ligand (2,6-bis(pyridin-3-ylethynyl)pyridine) and [Pd(CH3CN)4](X)2…
The main bottlenecks limiting the practical applications of current magnetoresistive random access memory (MRAM) technology are its low storage density and high writing energy consumption. Although a number of proposals have been reported for voltage-controlled memory device in recent years, none of them simultaneousl…
Hollow micro-/nano-structured materials are now playing an important role in cutting edge innovations for energy conversion and storage technologies such as solar cells, fuel cells, lithium ion batteries and super capacitors. These materials show great promise in addressing growing environmental concerns for cleaner p…
In this study, SnSe nanoparticles with well-defined crystallinity have been assembled into vertically aligned TiO 2 nanotubes by pulsed electrodeposition method from aqueous solutions and thermally heat treated in air atmosphere. The obtained films were characterized by scanning electron microscopy (SEM), X-ray diffra…
Abstract The nonisothermal crystallization behavior of Copper/low‐density polyethylene (LDPE) nanocomposites was investigated by differential scanning calorimetry (DSC). The nanocomposites were prepared by solution blending method, and the traditional extrusion melt method was also employed for comparison. The DSC res…
Abstract Facile chemical synthesis and understanding of the formation mechanism of silver nanoparticles, ordered on the microscale on one-dimensional (1D), 2D or in 3D structures of complex forms is challenging for advanced applications, in electronics, optoelectronics, and medicine, to mention a few. Significant resu…
Semiconductors with parallel cylindrical pores possess positive birefringence for a single system of pores and negative one—for two mutually perpendicular systems of pores, in accordance with experiments. The matrix luminescence is polarized. For metal-filled pores, the system demonstrates a strong, frequency-dependen…
Impurities/additives may be either detrimental or beneficial to many different crystal growth applications. Determined to a great extent by thermodynamics, their effects are hardly avoided once supersaturation, temperature, pH, and impurity content are established. In this work we introduce the rate of supersaturation…
Abstract Ultrafine well‐dispersed Fe 3 O 4 magnetic nanoparticles were directly prepared in aqueous solution using controlled coprecipitation method. The synthesis of Fe 3 O 4 /poly (2‐acrylamido‐2‐methylpropane sulfonic acid) (PAMPS), Fe 3 O 4 /poly (acrylamide‐ co ‐2‐acrylamido‐2‐methylpropane sulfonic acid) poly(AM…
A new salt, [NO2BzDMAP]3[Cu2Cl7] · H2O (1), has been synthesized, where [NO2BzDMAP]+ is 1-(4′-nitrobenzyl)-4-dimethylaminopyridinium. Herein, the synthesis, spectral and structural characterization, and magnetic behavior of 1 are reported. It is orthorhombic, with space group Pca21, and a = 26.639(2) Å, b = 9.638(1) Å…