Materials Literature
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Pt(ii) phenylbipyridine complexes possessing bis(phenylisoxazolyl)phenylacetylene ligands self-assembled to form stacked aggregates via Pt-Pt, π-π stacking, and dipole-dipole interactions. The assembled structures were influenced by the solvent properties. Non-helical assemblies found in chloroform displayed metal-met…
In this study, we introduce a single/few-layered graphene oxide (GO) synthesized with ultrasonication, and demonstrate its high dielectric permittivity in the frequency range of 20 Hz to 2 MHz and temperature range of 30 °C to 180 °C.
Fe 3+ -induced oxidation and coordination cross-linking in catechol–chitosan (CCS) hydrogels under acidic pH conditions; EDTA was used to disintegrate the coordination cross-linking system.
A series of new metal chalcongenides, BaCdSnSe4 (1), Ba2SnSe4 (2), Mg2GeSe4 (3), and Ba2Ge2S6 (4), were successfully synthesized for the first time. Among them, compounds 2 and 4 were prepared by a molten flux method with Zn as the flux. In their structures, all of them have MQ4 (M = Sn, Ge; Q = S, Se) units. For comp…
Novel fluorescent silicon quantum dots (Si-QDs) were synthesized by a one-step hydrothermal procedure using (3-aminopropyl)trimethoxysilane (APTES) as a silicon source and sodium ascorbate (SA) as a reducing agent.
Life factor of machine parts depends on the wear and machine parts intended fracture due to effect caused by wear. Wear has typical modes such as abrasion, erosion, adhesive, impact and corrosion. Hardfacing is a resistance to wear, it is an application of build-up of deposits of special alloys on the surfaces. The we…
Cu doped Zn-In-S quantum dots (CZIS QDs) were synthesized by a hydrothermal method. The absorption and fluorescence peaks of CZIS QDs shifted monotonically to longer wavelengths with the increase of the Cu precursor and the decrease of Zn and In precursors. The dopant emission wavelength can be easily tuned in the who…
A series of Bi 1−x Eu x OX (X = F and Br; x = 0, 0.01, 0.03 and 0.05) phosphors were synthesized at relatively low temperature and short duration (500 °C, 1 h).
We present textile weaving as a new technique for the manufacture of miniature electrochemical sensors with significant advantages over current fabrication techniques. Biocompatible silk yarn is used as the material for fabrication instead of plastics and ceramics used in commercial sensors. Silk yarns are coated with…
The search for new candidate semiconductors with direct band gaps of ∼1.4 eV has attracted significant attention, especially among the two-dimensional (2D) materials, which have become potential candidates for next-generation optoelectronics. Herein, we systematically studied 2D B(x)/2N(x/2)C(1-x) (0 < x < 1) compound…
CaWO4:Eu3+ microcrystals (with 0, 1, 2 and 4 mol% Eu3+) were synthesized by a co-precipitation (CP) method and grown in a microwave-assisted hydrothermal (MAH) system at 130 °C for 30 min. X-ray diffraction (XRD), Rietveld refinement, X-ray absorption near edge spectroscopy (XANES), Fourier-transform Raman (FT-Raman)…
A nanobiosensor chip, utilizing surface enhanced Raman spectroscopy (SERS) on nanosculptured thin films (nSTFs) of silver, was shown to detect Escherichia coli (E. coli) bacteria down to the concentration level of a single bacterium. The sensor utilizes highly enhanced plasmonic nSTFs of silver on a silicon platform f…
The synthesis and characterization of LTA(Li)–Ag zeolites with water-responsive photoluminescence properties and high external quantum efficiencies is described in this study.
Coordination bonds are effective for constructing functional self-healing materials due to their tunable bond strength and metal-ion-induced functionalities. In this work, we incorporate a cobalt(II) triazole complex into a polydimethylsiloxane (PDMS) matrix. The resulting polymers show solvatochromic behaviour as wel…
Several nanostructuring methods have been demonstrated to produce a variety of nanostructured materials, and these methods are well recognized as effective paradigms for improving the performance of thermoelectric materials.
The midblock composition of poly(lactide)- block -poly(ε-caprolactone- co -ε-decalactone)- block -poly(lactide) is used to tune block polymer melting point, crystallinity, segregation strength and tensile properties.
CoFe 2 O 4 –SiO 2 –TiO 2 core–shell–shell magnetic nanocomposites have been prepared by coating cobalt ferrite nanoparticles with double layers of SiO 2 –TiO 2 .
Poly(2-oxazoline)s are emerging revolutionary biomaterials, exhibiting comparable and even superior properties to well-established counterparts. Overcoming current tedious wet synthesis methods, we report solvent-free and substrate independent, plasma polymerised nanoscale biocompatible polyoxazoline coatings capable…
A low molecular weight hydrogelator with a covalently appended imidazole moiety is reported. Capable of percolating water in the pH range of 6 to 8, it proves to be an efficient catalyst upon self-assembly, showing Michaelis-Menten type kinetics. Activities at different pH values correlated with dramatic structural ch…
In aqueous dispersions of graphene quantum dots (GQDs), aniline is in situ polymerized to produce polyaniline-GQDs hybrids and dye-sensitized solar cells fabricated with the hybrids indicate highest power conversion efficiency of 3.12%.