Materials Literature
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Magnets made to order: Highly ordered multicomponent mesostructured alloys with controllable compositions have been synthesized [see TEM image and electron diffraction patterns (inset)]. The saturation magnetization of the alloys can be controlled by changing the ratio of metal components. New functions that are not f…
Wheat gluten is an amorphous storage protein. Trypsin hydrolysis of wheat gluten produced glutamine-rich peptides. Some peptides were able to self-assemble into fibrous structures extrinsic to native wheat gluten. The final material was an in situ formed peptide composite of highly ordered nanometer-sized fibrils and…
Polyvinylalcohol/graphite nanocomposites with graphite nanosheets have been prepared by a mechanical method based on grinding of graphite powder, under low energy pure shearing milling, using water or KOH as lubricant. The use of different lubricant concurs to obtain graphite sheets that differently disperse in hydrop…
Biological systems have a tendency to adsorb nonspecifically onto a solid substrate, thus reducing the efficacy of the interface being used in biorecognition. This nonspecific adsorption is a common problem in the development of biosensors as it typically reduces the efficacy of the sensor platform. In this manuscript…
Abstract The mechanism involved in the crystallization of bacterial polyhydroxybutyrate (PHB) and poly(hydroxybutyrate‐ co ‐hydroxyhexanoate) P(HB‐ co ‐HH) induced by orotic acid as a nucleant was investigated by using differential scanning calorimetry (DSC), gel permeation chromatography (GPC) and proton nuclear magn…
Foam and emulsion jamming at low shear rates is explained by considering the thinning dynamics of the transient films, formed between neighboring bubbles and drops. After thinning gradually to a critical thickness, these films undergo an instability transition, which leads to the formation of very thin "black films" p…
We revealed the aggravated instability of (0001)-oriented ZnO nanowires when they were deposited by a TiO(2) shell even under ambient conditions. Trace UV photons from daylight and moisture from air, which generally have negligible effects on "bare" ZnO nanowires, can obviously enhance their photocorrosion due to the…
Abstract In this study, ferulic acid was copolymerized with methacrylic acid to obtain a useful material with both antioxidant and antifungal properties. An ascorbic acid/hydrogen peroxide redox pair was used as a water‐soluble and biocompatible initiator system to prime the one‐pot polymerization reaction. The obtain…
Abstract The catalytic performance of the complexes [MoO 2 Cl 2 (L) 2 ] [L = N , N ‐dimethylformamide (dmf), N , N ‐dimethylacetamide (dma), N , N ‐dimethylpropionamide (dmpa), N , N ‐diethylformamide (def) and N , N ‐diphenylformamide (dpf)] was examined in the epoxidation of cis ‐cyclooctene with tert ‐butyl hydrope…
Abstract Novel deep‐red emissive poly(2,6‐BODIPY‐ethynylene)s bearing dodecyl side chains (polymers A , B , and C ) have been prepared by palladium‐catalyzed Sonogashira polymerization of 2,6‐diiodo‐functionalized BODIPY monomers with 2,6‐diethynyl‐functionalized BODIPY monomers. These polymers emit in the deep‐red re…
Abstract Biodegradable poly(3‐hydroxybutyrate) (PHB)/functionalized multi‐walled carbon nanotubes (f‐MWNTs) nanocomposite was prepared in this work by solution casting method at 2 wt% f‐MWNTs loading. Scanning electron microscopy and transmission electron microscopy observations indicate a homogeneous distribution of…
Abstract Dendrimers have been used as a vehicle to develop the antimicrobial properties of textile fabrics. We have taken advantage of the large number of functional groups present in the regular and highly branched three‐dimensional architecture of dendrimers. In this study, the poly(amidoamine) (PAMAM) G‐3 dendrimer…
Abstract An organic solvent soluble and high electrical conductivity, for example, 55.43 S/cm, polyaniline (PANI), was synthesized by a novel method. In this two steps process, a noncovalent approach was initially developed by functionalization of multiwalled carbon nanotubes (MWNTs) using calcium lignosulfonate (LsCa…
A simple and versatile process, based on a galvanic displacement reaction, is presented that provides controlled growth of different silver structures on silicon including thin films, nanocrystals, nanoparticles, and more complex structures termed nanodesert rose. Structure selection is achieved by choosing a suitable…
Abstract Tetra‐ n ‐butylammonium (TBA) salts of the dititanium sandwich‐type 19‐tungstodiarsenate(III) [Ti 2 (OH) 2 As 2 W 19 O 67 (H 2 O)] 8– ( 1 ) revealed a unique catalytic performance in the selective oxidation of organic compounds with aqueous hydrogen peroxide. The selectivity of alkene oxidation strongly depen…
Abstract Linear and nonlinear viscoelastic properties for binary blends composed of isotactic polypropylene and polytetrafluoroethylene (PTFE) are studied. It is found that blending a small amount of PTFE greatly enhances the storage modulus in the low frequency region. Further, drawdown force and normal stress differ…
The magnetization of LaCoO 3 shows a magnetic transition induced by level crossing at a magnetic field of 60 T below 25 K, which is consistent with the energy diagram determined from electron spin resonance experiments. However, the amount of Co ions with g = 3.35 contributing to the magnetic transition is sample-depe…
Abstract Poly(cyclohexene oxide) (PCHO)/clay nanocomposites were prepared by in situ photoinitiated activated monomer cationic polymerization. The polymerization of cyclohexene oxide through the interlayer galleries of the clay can provide distribution of the clay layers in the polymer matrix homogenously and results…
Sr 3−2 x Ce x Na x GaO 4 F phosphors were prepared through a high-temperature solid-state reaction method. Their photoluminescence and cathodoluminescence properties were investigated. Under ultraviolet light and low-voltage electron beam excitation, the phosphors show a typical broad emission of Ce 3+ and the lumines…
Ammonium borohydride releases >20 wt % hydrogen in three steps at temperatures <160 °C and provides evidence that [NH4]+[BH4]− crystallizes at room temperature and standard pressure in a rock salt [RS] structure and not a ZB structure that was previously proposed.