Materials Literature
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Pyrene-labeled hydroxypropyl cellulose (HPC-Py) was synthesized through a condensation reaction between hydroxypropyl cellulose (HPC) and 1-pyrenebutyric acid (Py). A hybrid (HPC/MWNTs) of the HPC-Py and multiwalled carbon nanotubes (MWNTs) was prepared through a noncovalent method. Temperature-variable UV-vis spectra…
Abstract One-dimensional magnesium oxysulfate 5Mg(OH) 2 · MgSO 4 · 3H 2 O (abbreviated as 513MOS) with high aspect ratio has attracted much attention because of its distinctive properties from those of the conventional bulk materials. 513MOS nanowires with different morphologies were formed by varying the mixing ways…
The first dinuclear iron(II) complexes of any 4-substituted 3,5-di(2-pyridyl)-4H-1,2,4-triazole ligands, [Fe(II)2(adpt)2(H2O)1.5(CH3CN)2.5](BF4)4 and [Fe(II)2(pldpt)2(H2O)2(CH3CN)2](BF4)4, are presented [where adpt is 4-amino-3,5-di(2-pyridyl)-4H-1,2,4-triazole and pldpt is 4-pyrrolyl-3,5-di(2-pyridyl)-4H-1,2,4-triazo…
Modularly assembled targeting nanoparticles were synthesized through self-assembly of targeting moieties on surfaces of functional nanoparticles. Specific molecular recognition of nickel nitrilotriacetate on Fe3O4 nanoparticles with hexahistidine tag on RGD4C peptides results in precisely controlled orientation of the…
A general route for the preparation of a series of dianionic Mo3S7 cluster complexes bearing dithiolate or diselenolate ligands, namely, [Mo3S7L3](2-) (where L = tfd (bis(trifluoromethyl)-1,2-dithiolate) (4(2-)), bdt (1,2-benzenedithiolate) (5(2-)), dmid (1,3-dithia-2-one-4,5-dithiolate) (6(2-)), and dsit (1,3-dithia-…
Abstract The functionalization reaction of high density polyethylene (HDPE) with maleic anhydride (MAH) or with MAH and γ‐methacryloxy‐propyltrimethoxysilane (MAS) performed in melt state through a high shear stress‐induced initiation by increasing the screw rotation speed of twin‐screw extruder and through a compound…
Abstract Polypropylene (PP) nanocomposites filled with 0.1, 0.3, 0.5, and 1.0 wt% carbon nanofiber (CNF) were prepared via melt compounding in a twin‐screw extruder followed by injection molding. The effects of CNF additions on the structure, mechanical and tensile yielding behavior of PP were investigated. TEM and SE…
The behavior of molecules confined in a nanoporous material was studied by adsorption from the gas phase with in situ neutron diffraction, with the aid of a high-pressure adsorption apparatus and the General Materials diffractometer (GEM, ISIS). The aim of this work is to establish the combined adsorption/neutron diff…
A light-harvesting array containing rigid backbones, peripherally positioned Zn-porphyrin terminals, and a free-base (Fb) porphyrin core was prepared by a convergent method where the Sonogashira coupling reaction was used in the key steps. Effective intramolecular singlet-energy transfer from the peripheral Zn-porphyr…
Abstract Multi‐walled carbon nanotube (MWCNT)/Poly(ethylene terephthalate) (PET) nanowebs were obtained by electrospinning. For uniform dispersion of MWCNTs in PET solution, MWCNTs were functionalized by acid treatment. Introduction of carboxyl groups onto the surface of MWCNTs was examined by Fourier transform infrar…
This work studies morphology development in blends of polyamide (PA) with poly(isobutylene- co - p -methylstyrene) (IMSM) and brominated poly(isobutylene- co - p -methylstyrene) (BIMSM). The presence of pendent benzylic bromine in BIMSM facilitates the rapid in situ formation of BIMSM−PA graft copolymer. IMSM represen…
BACKGROUND: The prokaryotic FAD synthetase family - a group of bifunctional enzymes that catalyse riboflavin phosphorylation and FMN adenylylation within a single polypeptide chain- was analysed in terms of sequence and structure. RESULTS: Sequences of nearly 800 prokaryotic species were aligned. Those related with bi…
Stable gold nanochains with branched features were fabricated at room temperature with the assistance of polyvinylpyrrolidone (PVP). An attachment and fusion process was believed to responsible for the formation of the chain-like structure. During the process, PVP acted both as a structure-directing agent and as a sta…
This article reports on a systematic study of various spinning techniques to produce torque-free singles ring spun yarns on a modified ring frame. The modification units, including optional fiber separation devices and a false twist device, were incorporated into the conventional ring spinning frame so that the balanc…
We have studied the structural and superconducting properties of the compound ${\text{LaFeAsO}}_{0.9}{\text{F}}_{0.1}$ under pressures up to 32 GPa using synchrotron radiation and diamond anvil cells. We obtain an ambient pressure bulk modulus ${K}_{0}=78(2)\text{ }\text{GPa}$ compressibility comparable to some cuprat…
ABSTRACT Consumers prefer garments that not only look good but also feel good especially during the last years because of their increased consciousness about a better life. Therefore, there have been many studies about subjective evaluation techniques such as subjective wear trials and consumer research techniques to…
Discussions about the nature of the charge carriers in the scandium tungstate and other isostructural tungstates and molybdates have persisted in the literature since a variety of experimental indications pointed toward trivalent cations as the mobile species. Here variations of the structure over a wide temperature r…
Zirconia (ZrO 2) nanocrystals, synthesized from zirconium(IV) isopropoxide isopropanol complex and benzyl alcohol, were dispersed and functionalized in organic solvents using three kinds of bifunctional silane coupling agents (SCAs), 3-glycidoxypropyltrimethoxysilane (GPTMS), 3-aminopropyltriethoxysilane (APTES), and…
Abstract Polymer nanoparticles are extensively explored as drug carriers but they generally have issues of premature burst drug release, slow cellular uptake, and retention in acidic intracellular compartments. Herein, we report multifunctioning three‐layered nanoparticles (3LNPs) that can overcome these problems. The…
Enzymes are classically proposed to accelerate reactions by binding substrates within active-site environments that are structurally preorganized to optimize binding interactions with reaction transition states rather than ground states. This is a remarkably formidable task considering the limited 0.1-1 A scale of mos…