Materials Literature
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Abstract We reported the synthesis process and the proteolytic ability of a novel crosslinked chitosan resin modified by azamacrocycle copper complex (CMCR). Characterization of CMCR showed that the Cu(II)Cyclen complex had successfully bound to the resin matrix covalently. Its proteolytic activity toward peptide bond…
Abstract In this work, the effect of the initial and secondary temperature differences on the solidification behaviors of high-density polyethylene (HDPE) during the thin-walled injection molding (TWIM) was intensively investigated. Simulated temperature profiles using the enthalpy transformation methodology were comp…
Abstract In this study, birch wood chips were treated in one‐step ball milling (BM) hydrolysis with dilute citric acid and fungus Penicillium simplicissimum at room temperature and atmospheric pressure. An efficient conversion process for the production of fermentable sugars from woody biomasses using wet BM system wa…
We investigate the stability, self-organized morphology, and kinetics of dewetting in a thin polymer bilayer (∼100 nm) of P3HT/polystyrene (PS) supported on Si wafers. The thin film of the conducting polymer, P3HT or regioregular poly(3-hexylthiophene), is driven to microstructure formation by dewetting of the unstabl…
The electronic dephasing of benzene on the second excited state has been observed using a femtosecond time-resolved photoelectron imaging technique coupled with time-resolved mass spectroscopy. Upon absorption of two 400-nm photons, benzene is excited to the ${S}_{2}$ state, and the time evolution of the parent ion ca…
A series of neutral octahedral nickel(II) complexes of 1,3-bis(2-pyridylmethylthio)propane (L) and pseudohalide (X), formulated as [NiII(L)X2] (where X = azide (1), cyanate (2), and isothiocyanate (3)), was synthesized. The complexes were characterized by physico-chemical and spectroscopic methods, and 1 and 3 also by…
The electrical performances of Pt/TiO(2)/Ti/Pt stacked Schottky-type diode (SD) was systematically examined, and this performance is dependent on the chemical structures of the each layer and their interfaces. The Ti layers containing a tolerable amount of oxygen showed metallic electrical conduction characteristics,…
We report the dependence of the intrinsic spin-wave spectra on the three-dimensional shape in single FePt nanomagnetic elements. In contrast to the well-known center and edge modes in flat, circular nanodisks, curved nanomagnets with identical nominal thickness and footprint exhibit a rich multimode spectrum with qual…
We have conducted a comprehensive study of ground-state O((3)P) atomic oxygen reactions with 1-hexadecanethiolate (CH3(CH2)15SH) and 1-undecanethiolate (CH3(CH2)10SH) self-assembled monolayers adsorbed onto Au/mica substrates, using X-ray photoelectron spectroscopy, infrared reflection absorption spectroscopy, ellipso…
HypF is involved in the biosynthesis of the CN ligand of the NiFe(CN)(2)CO centre of [NiFe]-hydrogenases. Here, the full-length structure of HypF from Thermococcus kodakarenesis is reported at 4.5 Å resolution. The N-terminal acylphosphatase-like (ACP) domain interacts with the zinc-finger domain with some flexibility…
Abstract Two bead‐spring models of flexible chains for generic coarse graining of entangled polymer melts, the excluded volume Kremer–Grest (KG) model and the modified segmental repulsive potential (mSRP) combined with a weakly repulsive potential, are compared. For chains containing an equivalent number of entangleme…
Bone marrow mesenchymal stem cells (MSCs) have attracted considerable interest due to their ability to differentiate and contribute to the regeneration of mesenchymal tissues. The present study illustrates that the proper immobilization of heparin (Hep) and hyaluronic acid (HA) into a polypyrrole (PPy) matrix by elect…
Abstract A screen-printed poly(3,4-ethylenedioxythiophene) : poly(styrenesulfonate) (PEDOT : PSS) layer was used as the anode for a flexible white organic light-emitting device (FWOLED). After 700 bending cycles, the sheet resistance of the anode was increased to 1.8 times the initial value (296 Ω/□). The average tran…
The pentiptycene receptors form edge-to-face complexes with a variety of aromatic guests including nitroaromatics. X-ray diffractometry revealed that compounds 1, 2, and 3 form host–guest assemblies with a thienyl fragment (from a neightboring molecule of 1 ), benzene and nitrobenzene, respectively. X-ray studies of t…
Abstract In this study, the tribological performance of poly-ether-ketone (PEEK), ultrahigh molecular weight polyethylene (UHMWPE), glass fiber reinforced poly-tetra-fluoro-ethylene (PTFE) and PTFE reinforced poly-ether-imide (PEI) composite materials, under dry and lubricated conditions, were compared and evaluated.…
A series of cyclobutene-based macromonomers derived from monomethyl ether poly(ethylene oxide) (PEO), poly(ethyl acrylate) (PEA), poly( N -isopropylacrylamide) (PNIPAM), and PEO- b -PNIPAM were synthesized by “click” copper-catalyzed azide–alkyne cycloaddition (CuAAC) and reversible addition–fragmentation chain transf…
Molecular dynamics simulations of polyelectrolyte poly(acrylic acid) at infinitely dilute conditions in aqueous solutions containing up to 6 vol% ethanol were performed with explicit solvent and counter-ion description for varying degree of neutralisation. In the range of ethanol concentration employed, this study sho…
We perform molecular dynamics simulations to study the effect of charged surfaces on the intermediate and long time dynamics of water in nanoconfinements. Here, we use the transferable interaction potential with five points (TIP5P) model of a water molecule confined in both hydrophobic and charged surfaces. For a sing…
Glass-fiber-reinforced polyester (GFRP) plates are treated using a 50 Hz dielectric barrier discharge at a peak-to-peak voltage of 30 kV in helium at atmospheric pressure with and without ultrasonic irradiation to study adhesion improvement. The ultrasonic waves at the fundamental frequency of around 30 kHz with the s…
Two-dimensional insulators with time-reversal symmetry can have two topologically different phases, the quantum spin Hall and the normal phase. The former is revealed by the existence of conducting edge states that are topologically protected. Here we show that the reaction to impurity, in bulk, is radically different…