Materials Literature
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The adsorption of poisonous lead (II) from aqueous solution using graphite doped chitosan composite as an adsorbent has been carried out. The characterizations of graphite doped chitosan composite were studied by using instrumental techniques like X-ray diffraction, Fourier Transform Infrared Spectroscopy and Scanning…
We investigated the carrier transport in multi-layer MoS2 with consideration of the contact resistance (R(c)) and interlayer resistance (R(int)). A bottom graphene contact was suggested to overcome the degradation of I(d) modulation in a back gated multi-layer MoS2 field effect transistor (FET) due to the accumulated…
) and a prepolymerization temperature at 95 °C gave rise to PU with the best properties in general. The latter PU also showed excellent biodegradation (52% weight loss after 30 days) and biocompatibility (capsule thickness ∼23 μm) in vivo. Furthermore, the PU dispersion could be electrospun into nanofibers (∼400 nm di…
We report mesoscale simulations of polymer melts and crosslinked polymer networks by using realistic coarse-grained (CG) models that are developed from atomistic simulations of polymer melts.
A smart therapeutic platform with potential controllable drug release and magnetic hyperthermia was constructed through the conjugation of carboxyl-modified DNA onto aminated magnetic mesoporous silica nanoparticles.
White light-emitting NaGdF4 phosphor samples based on efficient energy transfer between Tb3+ and Eu3+ were synthesized via a conventional hydrothermal reaction process. X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), high-resolution transmission electron microscopy (HRTEM), and photolumi…
This paper presents the synthesis, characterisation, and in vitro testing of homogenous and heterogeneous materials containing silver nanoparticles (nanoAg). Three types of antiseptic materials based on collagen (COLL), hydroxyapatite (HA), and collagen/hydroxyapatite (COLL/HA) composite materials were obtained. The s…
A series of Ti(iv), Zr(iv) and Hf(iv) complexes containing imine based bis-bidentate ligands were synthesized and characterized by various spectroscopic techniques, elemental analysis and X-ray crystallography. The ligands m-xysal-((t)Bu)4 (L(1)((t)Bu)4), m-xysal-(Me)2((t)Bu)2 (L(2)Me2((t)Bu)2) and m-xysal-(Cl)4 (L(3)…
Two novel organic–inorganic luminescent hybrid materials have been obtained by linking of Eu <sup>3+</sup> compounds to an ethene-PMO functionalized with dipyridyl-dihydropyridazine.
Pyrene-appended ytterbium complexes have been prepared using Ugi reactions to vary the chromophore-lanthanide separation. Formation of the ytterbium(iii) excited state is sensitised via both the singlet and triplet excited states of the chromophore. Energy transfer from the latter is relatively slow, and gives rise to…
A HAP@β-TCP nanocomposite doped with Er <sup>3+</sup> /Yb <sup>3+</sup> ions was prepared and its cytotoxicity was tested on canine osteosarcoma and murine macrophage cells. Metronidazole release from the nanocomposite was studied and its up-conversion properties measured.
Controlling the course of the degradation of aliphatic polyesters is a key question when designing new degradable materials.
Using first principles calculations we predicted new molecular based hydrogen storage systems, which are composed of abundant elements, with interesting thermodynamics.
By means of calculations based on density-functional theory (DFT), we have investigated the conversion of methane on two platinum atoms supported with a graphene-oxide sheet (Pt2/GO). In our calculations, a CH4 molecule can be adsorbed around the Pt atoms of the Pt2/GO sheet with adsorption energies within -0.11 to -0…
A porous hexangular ring-core NiCo2O4 nanosheet/NiO nanoparticle composite has been synthesized using a hydrothermal method followed by an annealing process in air. The as-obtained composite as an anode material exhibits a high initial discharge capacity of 1920.6 mA h g(-1) at a current density of 100 mA g(-1) and th…
The as-prepared samples are short and rod-like in shape with a diameter of about 10 nm and length of about 20–30 nm. The excitation spectra indicate that Sm <sup>3+</sup> ions transfer energy to Eu <sup>3+</sup> ions, which increases the color purity of Eu <sup>3+</sup> ions in the GdVO <sub>4</sub> system.
Nowadays, carbon nanotubes (CNTs) have attracted the attention of scientists because of their unique electronic, magnetic, optical, mechanical, and chemical properties. However, their poor solubility in solvents, especially in water, limits their applications in several promising fields such as biomedicine, biomedical…
A wide-temperature liquid crystalline amorphous blue phase based on polymer network stabilization exhibits high thermodynamic stability with an extended temperature ranging from a few °C to more than 80 °C (including room temperature). Analyses using confocal laser scanning microscopy show that the polymer network imi…
A wide range (20–560 K) temperature sensor exhibiting linear behavior in entire range is devised from CdS:SiO <sub>2</sub> nanocomposite with average sensitivity and resolution ≈10 <sup>−2</sup> K <sup>−1</sup> & 10 <sup>−4</sup> K respectively and maximum relative sensitivity ~8.4% K <sup>−1</sup> at 120 K.
Superhydrophobic membranes with high gas permeability were prepared and characterized.