Materials Literature
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Two-, four-, and six-armed branched copolymers with electroactive and biodegradable properties were synthesized by coupling reactions between poly(l-lactides) (PLLAs) with different architecture and carboxyl-capped aniline trimer (CCAT). The aniline oligomer CCAT was prepared from amino-capped aniline trimer and succi…
A $2+1$-dimensional fermion field theory is proposed as a model for the low-energy electronic excitations in monolayer graphene. The model consists of ${N}_{f}=2$ four-component Dirac fermions moving in the plane and interacting via a contact interaction between charge densities. For strong couplings there is a contin…
Thiol−isocyanate−ene ternary networks with systematic variations (100/100/0, 100/80/20, 100/60/40, 100/40/60, 100/20/80, and 100/0/100) were prepared by sequential and simultaneous thiol−ene and thiol−isocyanate click reactions. The thiol−isocyanate coupling reaction was triggered thermally or photolytically to contro…
The application of atom transfer radical polymerization (ATRP) for preparation of a novel class of protein-polymer bioconjugates is described, exemplified by the synthesis of a recombinant human growth hormone (rh-GH) poly(ethylene glycol) methyl ether methacrylate (PEGMA) hybrid. The rh-GH protein was activated via a…
In this paper, we report a kind of bioinspired high performance near-infrared improved transmittance silica surfaces with superhydrophobic properties by colloidal lithography, with transmittance about 99% from 1300 to 2000 nm. Meanwhile, the optical properties of such surfaces can be controlled by the antireflective s…
Competitive adsorption between nonpolar organic compounds and polar ionic organic compounds (IOCs) on carbon nanotubes (CNTs) is essential for application of CNTs as superior sorbents and for environmental risk assessment of both CNTs and organic contaminants. It was observed in this study that adsorption of neutral a…
Unknown parameters critical to understanding the electron-precursor-substrate interactions during electron-beam-induced deposition (EBID) have long limited our ability to fully control this nanoscale, directed assembly method. We report here values that describe the precursor-solid interaction, the precursor surface d…
The formation of well-oriented cylinders with perpendicular morphology for polystyrene-b-polydimethylsiloxane (PS-PDMS) thin films was achieved by spin coating. The self-assembled PS-PDMS nanostructured thin films were used as templates for nanopatterning; the PDMS blocks can be oxidized as silicon oxy carbide microdo…
The competition between chemical equilibrium, for example protonation, and physical interactions determines the molecular organization and functionality of biological and synthetic systems. Charge regulation by displacement of acid-base equilibrium induced by changes in the local environment provides a feedback mechan…
ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication to the EditorNEXTA "Click Chemistry" Approach to Linear and Star-Shaped Telechelic POSS-Containing Hybrid PolymersWeian Zhang†‡ and Axel H. E. Müller*†View Author Information† Makromolekulare Chemie II, Universität Bayreuth, D-95440 Bayreuth, German…
Here we report the synthesis of single-walled carbon nanotube bundles by chemical vapor deposition in the presence of electron donor elements (N, P, and Si). In order to introduce each dopant into the graphitic carbon lattice, different precursors containing the doping elements (benzylamine, pyrazine, triphenylphosphi…
Bamboo fiber-reinforced HDPE composites were prepared employing melt blending technique followed by injection molding. A systematic investigation of the mechanical, dynamic, thermal, and morphological behavior of the composites was carried out. It was observed that the tensile and flexural properties increased with th…
In this Comment, using Korringa-Kohn-Rostoker coherent-potential approximation method in the atomic-sphere approximation (KKR-ASA CPA) to describe the effects of disorder due to excess Fe in FeTe alloys, we show that (i) the rigid-band approximation is inadequate to describe the effects of disorder and its application…
We present ab initio many-body calculations of the optical absorption in bulk graphite, graphene and bilayer of graphene. Electron-hole interaction is included solving the Bethe-Salpeter equation on top of a $GW$ quasiparticle electronic structure. For all three systems, we observe strong excitonic effects at high ene…
Scanning tunneling microscopy combined with molecular dynamics simulations reveal a dislocation-mediated island diffusion mechanism for Cu on Ag(111), a highly mismatched system. Cluster motion is tracked with atomic precision at multiple temperatures and diffusion barriers and prefactors are determined from direct me…
This paper describes the moisture absorption behavior and its effect on mechanical properties of Lantana camara fiber reinforced epoxy composite. Composite samples reinforced with different wt% of fibers were prepared by hand lay-up technique. Increase in tensile and flexural strength was observed with increase in fib…
A new strategy for integrating high-dielectric-constant (high-k) dielectrics with graphene nanoribbon (GNR) is presented. Freestanding zirconium oxide nanowires are synthesized and subsequently assembled on top of GNRs as high-k gate dielectrics for top-gated GNR transistors with unprecedented performance.
Abstract This article presents an overview of the current progress in molecular mimetic self‐assembly of colloidal particles. Firstly, the recent study of colloidal particles at interfaces is highlighted, underlining the mesoscopic mimicry of the surface activity of amphiphilic molecules using colloidal particles. Sec…
Calcite single crystals containing polystyrene particles are synthesized using a straightforward, one-pot method, through control of the particle surface structure and the crystallization conditions. Investigation of the mechanical behavior of these composite crystals using nanoindentation shows enhanced fracture toug…
Abstract One‐dimensional nanomaterials and their assemblies attract considerable scientific interest in the physical, chemical, and biological fields because of their potential applications in electronic and optical devices. The interface‐assembly method has become an important route for the self‐assembly of nanoparti…