Materials Literature
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Previous results have shown that the nacre specific peptide, n16N, from the Japanese pearl oyster Pinctada fucata has a binding affinity for β-chitin. As a result, the n16N-chitin assembly is able to selectivity nucleate aragonite. Here, we have added silk fibroin hydrogels to the in vitro assay to more fully represen…
This article is part of a series on the thermo-mechanical responses of fiber-reinforced composites at elevated temperatures and it follows the first part containing experimental results. A flame-retardant system consisting of a cellulosic charring agent and an interactive intumescent additive (melamine phosphate) has…
The photophysics and excited-state dynamics of two dyads consisting of either a free-base or a zinc-tetraphenylporphyrin linked through a rigid bridge to a core-substituted naphthalenediimide (NDI) have been investigated by femtosecond-resolved spectroscopy. The absorption and fluorescence spectra differ substantially…
The widely used and versatile polyelectrolyte layer-by-layer (LbL) nanoparticle coating strategy allows for gold nanorods to be transferred from aqueous media into a broad range of polar organic solvents without aggregation. The uniform dispersity and stability of the nanorods in organic solvents allows for uniform in…
This paper reports on the preparation and structural, morphological, and luminescence properties of Er 3+ ‐doped nanocomposites based on SiO 2 –Ta 2 O 5 prepared by the sol–gel method. The influence of the tantalum oxide content on the structural and spectroscopic properties was analyzed for Si/Ta molar ratios of 90:1…
We have used dynamic headspace analysis to investigate the evaporation rates of perfume oils from stirred oil-in-water emulsions into a flowing gas stream. We compare the behavior of an oil of low water solubility (limonene) and one of high water solubility (benzyl acetate). It is shown how the evaporation of an oil o…
Amongst the engineered nanomaterials, especially carbon nanotubes (CNTs) have received considerable attention for application in tissue engineering scaffolds. CNTs are considered promising on behalf of their physicochemical properties, yet such nanomaterials also have been associated with potentially hazardous effects…
We calculated the properties of a graphene monolayer on the Ir(111) surface, using the model in which the periodicities of the two structures are assumed equal, instead of the observed slight mismatch which leads to a large superperiodic unit cell. We used the density functional theory approach supplemented with the r…
We use first-principles density-functional-theory calculations to investigate the ground state structures of $\text{Ba}({\text{Ti}}_{1\ensuremath{-}x}{\text{Ce}}_{x}){\text{O}}_{3}$ solid solutions containing Pd. Previous studies have shown that the properties of ${\text{BaTiO}}_{3}$, a Pb-free ferroelectric $AB{\text…
We use mesoscale simulations to study the depinning of a receding contact line on a superhydrophobic surface patterned by a regular array of posts. For the simulations to be feasible, we introduce a novel geometry where a column of liquid dewets a capillary bounded by a superhydrophobic plane that faces a smooth hydro…
The design of robust omniphobic surfaces, which are not wetted by low-surface-tension liquids such as octane (γlv=21.6 mN/m) and methanol (γlv=22.7 mN/m), requires an appropriately chosen surface micro/nanotexture in addition to a low solid-surface energy (γsv). 1H,1H,2H,2H-Heptadecafluorodecyl polyhedral oligomeric s…
Smart hydrogels are designed and synthesized to exhibit sensitive, linear, and reversible photoluminescence (PL) responses to temperature change in the range of 10 to 50°C.The Eu-doped core/shell nanoparticle hydrogels consist of poly[styrene-co-(N-isopropylacrylamide)] (PS-co-PNIPAM)/PNIPAM.
Injectable scavenging nanocarriers have been proposed as detoxifying agents when there are no specific antidotes to treat pharmacological overdoses. They act by capturing the drug in situ, thereby restricting distribution in tissues. In the clinic, the only systems used for that purpose are parenteral lipid emulsions,…
# 01 Organometallic Polycondensation for Conjugated Polymers # 02 Catalyst-Transfer Condensation Polymerization for Precision Synthesis of pi-Conjugated Polymers # 03 Regioregular and Regiosymmetric Polythiophenes # 04 Functional Hyperbranched Polymers Constructed from Acetylenic An-Type Building Blocks # 05 Through-S…
Ethanol decomposition on Rh(111) is systematically investigated using periodic density functional theory (DFT) calculations. The various adsorption modes of the intermediates involved are located. It is determined that ethanol adsorbs weakly on the Rh(111) surface. CH 3 CH 2 O, CH, and H prefer 3-fold sites with adsor…
In this study, vertical N-doped carbon nanotube (VNCNT) arrays were decorated with Au, Ru, or Mn nanoparticles, and the effects of the particles on the field-emission properties were investigated. Uniform catalyst nanoparticles were prepared by block copolymer lithography on a graphene film, and the VNCNT arrays were…
Abstract The “Epifree” process involves the lift‐off of a high‐quality monocrystalline film formed by reorganization upon annealing of cylindrical macropore arrays in silicon, and can thus provide high‐quality silicon films without resorting to costly epitaxy. The challenge of this new process lies in etching controll…
Abstract Silicon quantum dot (Si QD) solar cells offer the potential to tune the effective band gap through quantum confinement and hence allow fabrication of optimised tandem devices in one growth run in a thin film process. Previous work in our group has shown how such cells can be fabricated by sputtering of thin l…
Chitosan-glucose conjugates were prepared using Maillard reaction chemistry. Water-soluble and acid-soluble chitosan-glucose mixtures were heated at pH 4.9 and 6.0 at 98 °C. Mixtures at pH 6.0 containing acid-soluble chitosan gelled when heating was continued after reaching 98 °C and withstood gelation for only 30 min…
We report the preparation and characterization of monolayer graphene decorated with functionalized single-molecule magnets (SMMs). The grafting ligands provide a homogeneous and selective deposition on graphene. The grafting is characterized by combined Raman microspectroscopy, atomic force microscopy (AFM), and elect…