Materials Literature
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We theoretically investigate negative differential resistance (NDR) for ballistic transport in semiconducting armchair graphene nanoribbon (aGNR) superlattices (5 to 20 barriers) at low bias voltages ${V}_{\mathrm{SD}}<500$ mV. We combine the graphene Dirac Hamiltonian with the Landauer-B\"uttiker formalism to calc…
AIMS: Thrombogenicity associated with the induction of leukocyte procoagulant activity (PCA) is a common complication in sepsis and cancer. Since nanoparticles are increasingly used for drug delivery, their interaction with coagulation systems is an important part of the safety assessment. The purpose of this study wa…
The use of delivery vehicles to selectively transport anticancer agents to tumors is very attractive to address both toxicity and efficacy issues. We report a novel approach based on hybrid nucleoside-lipids allowing the efficient encapsulation and delivery of cisplatin. We demonstrate that the nucleoside polar heads…
Inspired by the observations of a remarkably stable biaxial nematic phase [van den Pol et al., Phys. Rev. Lett. 103, 258301 (2009)], we investigate the effect of size polydispersity on the phase behavior of a suspension of boardlike particles. By means of Onsager theory within the restricted orientation (Zwanzig) mode…
By means of in situ synchrotron radiation powder X-ray diffraction, powder neutron diffraction, attenuated total reflectance infrared spectroscopy, differential scanning calorimetry and the Sieverts techniques we have investigated how anion substitution in the LiBH4–LiBr system leads to changes in the structural, phys…
The production of extracellular polysaccharides (EPS) forms a layer on a metal surface that may either inhibit or accelerate corrosion. In the present study, the biocorrosion behavior of stainless steel 304 in the presence of aerobic bacteria Bacillus megaterium and Pseudomonas sp. was investigated in different growth…
Studies of the activating effect of Verkade's base, 2,8,9-triisobutyl-2,5,8,9-tetraaza-1-phosphabicyclo[3.3.3]undecane (VB), on the rate and extent of H(2) release from ammonia borane (AB) have led to the syntheses and structural characterizations of three anionic aminoborane chain-growth products that provide direct…
We report an experimental study of the dynamics of spontaneous spreading of aqueous glycerol drops on glass. For a range of glycerol concentrations, we follow the evolution of the radius and contact angle over several decades of time and investigate the influence of solution viscosity. The application of the molecular…
The negatively charged nitrogen-vacancy (NV(-)) center in diamond is considered to be one of the most promising solid state systems for quantum information applications. Excited states of the NV(-) center play a center role in the proposed applications. Using a combination of first-principles calculations and vibronic…
A simple but remarkably precise geometric pore-filling model is proposed and experimentally validated for the adsorption of proteins at their iso-electric point (pI) in nanoporous materials. Three different globular proteins-lysozyme, myoglobin, and bovine serum albumin-are used as model proteins to study protein adso…
Abstract Bioimaging and therapeutic delivery applications are areas of biomedicine where nanoparticles have had significant impact, but the use of a nanomaterial in these applications can be limited by its physicochemical properties. Calcium phosphate‐based composite nanoparticles are nontoxic and biodegradable, and a…
We have established a novel and generalizable hydrothermal synthesis for diverse hollow nanospheres, which cover polymer, carbon, graphitic carbon, and metal-doped carbon hollow nanospheres. The synthesis principle is based on the weak acid–base interaction (−COO – /NH 4 + /–COO – ) induced assembly. That is, the ammo…
Amphiphilic constructs with accessible, nanometer-size cavities can enable selective encapsulation, separation, and purification of nanomaterials and biomacromolecules on a similar length scale. We have developed a new method for the fabrication of amphiphilic organic nanotubes from multicomponent bottlebrush copolyme…
The present investigation was undertaken with the aim of designing a noble-metal-free diesel soot oxidation catalyst that can work at relatively low temperatures. Accordingly, a series CeO 2 –Al 2 O 3, CeO 2 –ZrO 2, and CeO 2 –SiO 2 mixed-oxide-supported copper catalysts were prepared by a modified deposition–precipit…
The mixed-valent cerium(III/IV) oxide clusters {Ce(10)} and {Ce(22)}, derived from condensation reactions of cerium carboxylate coordination polymers, exhibit molecular growth tendencies similar to those of 'classical' group V and VI polyoxometalates, but with increasing nuclearity approach the structure of the parent…
A bioinspired approach to the fabrication of nanostructured functional devices is described. ZnO nanowires are formed by self-assembly of nanosized ZnO building blocks controlled by tobacco mosaic virus (TMV) templates at nearly ambient conditions. This process allows the integration of TMV/ZnO nanostructures into fie…
A challenge-facing hazard identification and safety evaluation of engineered nanomaterials being introduced to market is the diversity and complexity of the types of materials with varying physicochemical properties, many of which can affect their toxicity by different mechanisms. In general, in vitro test systems hav…
Hides and skins, by-products of the meat industry, are converted into a value-added product, leather, by tanners. Tanning essentially is the process of converting raw hides and skins into an imputrescible substance. The tanning process has number of steps and generates significant quantities of by-products and wastes.…
The band gap opening of graphene is the most desired property in the device industry because it is vital to the application of graphene as a logical device of semiconductors. Here, we show how to make a reasonably wide band gap in graphene. This is accomplished with bilayer graphene (BLG) dual-doped with FeCl 3 -accep…
Abstract The recycling or reuse of waste rubber by means of blending together with polymeric materials in addition of filler such as hybrid carbon black and silica (CB/Sil) to a polymer system can provides an opportunity to explore alternative product specifications. Therefore, in this work the investigation of recycl…