Materials Literature
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ABSTRACT In this study, we synthesized a novel double‐hydrophilic poly(ethylene glycol) (PEG)‐based crystal growth modifier polyethylene glycol double‐ester of maleic anhydride/ acrylic acid named PEGDMA/AA, whose structure was still linear but also had some differences from a traditional chelating linear polymer, in…
The four heteronuclear clusters [Ag 2 Au 2 (μ-dpppy) 3 (C≡CC 6 H 4 R-4) 2 ](ClO 4 ) 2 (R = H ( 1 ) CH 3 ( 2 ), COOCH 3 ( 3 ), CHO ( 4 )) were prepared by the self-assembly reaction between (AuC≡C 6 H 4 R-4) n (R = H, CH 3, COOCH 3, CHO) and [Ag 2 (μ-dpppy) 3 ] 2+ (dpppy = 2,6-bis(diphenylphosphino)pyridine) and charac…
This paper describes the synthesis and characterization of sol-gel silica nanoparticles (NPs) derived from tetraethoxysilane (TEOS) and from tetraethoxysilane and methyltriethoxysilane (TEOS-MTEOS) in which is encapsulated, an in-house synthesized, stable oxygen-sensitive ruthenium complex, ruthenium (II) (bis-2,2-bip…
Optimized geometrical structure, atomic charges, molecular electrostatic potential, nonlinear optical (NLO) effects and thermodynamic properties of the title compound N-(2,5-methylphenyl)salicylaldimine (I) have been investigated by using ab initio quantum chemical computational studies. Calculated results showed that…
In 4 Se 3 bulk materials with Cu nanoinclusions, which were introduced by thermal decomposition of Cu ( OA c) 2 , were prepared by mechanical alloying and subsequent hot‐press process. Effect of Cu nanoparticles content on the microstructure and thermoelectric properties of the composites were investigated in detail.…
A facile method is proposed to use a computer controlled Arc discharge gap between graphite electrodes together with an yttria-nickel catalyst to synthesize carbon nanotubes under an Ar-H 2 gases mixture atmosphere by applying different DC currents and pressure. This produces carbon nanotubes with decreased diameters…
A novel water-assisted chemical vapor deposition (CVD) method for the efficient synthesis of boron nitride (BN) nanotubes is demonstrated. The replacement of metal oxide by water vapor could continuously generate intermediate boron oxide vapor and enhance the production of BN nanotubes. The nanotubes synthesized when…
We report a detailed study of the Te vapor annealing effect in Fe$_{1+y}$Te$_{0.6}$Se$_{0.4}$ single crystals. Bulk superconductivity can be gradually induced by annealing with increasing amount of Te, until the molar ratio of Te to the sample reaches 1 : 10. By further increasing Te molar ratio, superconducting volum…
The process of depositing nanoparticles onto tapered fiber probes with the laser-induced chemical deposition method (LICDM) and the surface-enhanced Raman scattering (SERS) detection performance of the prepared probes are experimentally investigated in this paper. Our results show that the nanoparticle-deposited taper…
Hexagonal crown-capped ZnO micro rods were successfully prepared by a facile low-temperature hydrothermal method. The as-prepared ZnO micro rods are 4.4-5.2 μm in length and 2.4-3.6 μm in diameter, possessing a single-crystal hexagonal structure. The morphology evolution and structure changes were tracked during hydro…
Polymeric drug carriers aim to selectively target tumors in combination with protecting normal tissue. In this regard polymer structure and molecular weight are key factors considering organ distribution and tumor accumulation of the polymeric drug delivery system. Four different HPMA based copolymer structures (rando…
A green approach for the one-step electrochemical synthesis of water dispersible graphene is reported. An alkaline solution of 6-amino-4-hydroxy-2-naphthalene-sulfonic acid (ANS) serves the role of electrolyte as well as surface modifier. High-purity graphite rods are used as electrodes which can be exfoliated under a…
We previously developed and validated a murine model for investigating neotissue formation in tissue-engineered vascular grafts (TEVGs). Herein, we present the first longitudinal assessment of both the microstructural composition and the mechanical properties of a TEVG through the process of neovessel formation (total…
A major hurdle in assessing the biological, chemical and physical properties of current nanoparticles lies in their complex nature in terms of size, shape, and composition. As such, it is vital to develop a high-resolution analytical separation technique to fractionate these nanomaterials. Herein, we demonstrate an un…
In situ ATR-IR spectroscopy was used to identify the structural variations of NH 4 + and H 2 PO 4 – during NH 4 H 2 PO 4 (ADP) crystallization in aqueous solution with different pH values. For supersaturated ADP solution, the time needed for the appearance of ADP solids in IR measurement will be prolonged with increas…
ABSTRACT At glass transition temperature, T g the rubber compound becomes stiff and brittle and it loses all its rubbery characteristics. This article deals with the changes in T g of rubber blends based on natural rubber and polybutadiene rubber of varying vinyl content having different types and content of plasticiz…
Implementation of SERS as an analytical technique is limited because the factors that govern the enhancement of individual vibrational modes are not well understood. Although the chemical effect only accounts for up to two orders of magnitude enhancement, it can still have a significant impact on the consistency of ch…
The quantum Zeno effect, i.e., the inhibition of coherent quantum dynamics by measurement operations, is one of the most intriguing predictions of quantum mechanics. Here we experimentally demonstrate the quantum Zeno effect by inhibiting the microwave-driven coherent spin dynamics between two ground-state spin levels…
Contrary to the moderate ballistic advantage of Al 2 O 3 ceramics over MgAl 2 O 4 polycrystals, the present study shows a reverse ratio of the ballistic strength of alumina and spinel single crystals : Spinel single crystals outperform sapphire and exhibit a similarly high stability as submicrometer Al 2 O 3 ceramics.…
Ruddlesden–Popper materials such as La 2 NiO 4+δ (LNO) have high activities for surface oxygen exchange kinetics promising for solid oxide fuel cells and oxygen permeation membranes. Here we report the synthesis of the (100) tetragonal -oriented epitaxial LNO thin films prepared by pulsed laser deposition. The surface…