Materials Literature
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Core-shell quantum dots suffer from photobleaching by light at wavelengths longer than their emission wavelengths. That is, QD photobleaching can be triggered by photons with low energies that are insufficient to pump electrons into the conduction band. The most probable reason is that electrons are pumped into a surf…
An orange-emitting phosphor was obtained via efficient Ce3+–Mn2+ and Eu2+–Mn2+ energy transfers in La9.33(SiO4)6O2, and has been developed for solid state UV/near-UV white lighting applications. The luminescence properties and energy transfer from Ce3+ to Mn2+ and Eu2+ to Mn2+ are investigated. The La9.33(SiO4)6O2:Ce3…
We investigated the interaction of TiO(+) with water by conducting infrared photodissociation spectroscopy and density functional theory calculations on TiO(H2O)Ar(+) and TiO(H2O)5-7(+) clusters. The studies show that TiO(H2O)Ar(+) has two isomers, Ti(OH)2Ar(+) and (H2O)-TiOAr(+), coexisting in our experiments. The st…
Superparamagnetic iron oxide nanoparticles (SPIONs), have played an important role in the promotion of image contrast in magnetic resonance imaging modality. The objective of present study is describing SPIONs conjugated with C595 monoclonal antibody (mAb) against MUC1-expressing ovarian cancer (OVCAR3) cell. Magnetic…
Two new inorganic-organic hybrid compounds Na2(C3N2H12)4{[Ni5(OH)3(H2O)4(CH3CO2)][Si2W18O66]}·12.5H2O (1) and (C3N2H12)3{[Co(II)2Co(III)4(OH)5(H2O)2(CH3CO2)][Si2W18O66]}·6H2O·(C3N2H10) (2), based on lacunary polyoxometalates and high-nuclear transition-metal clusters, have been synthesized by a new method (solvotherma…
The pure polyester polyurethane (TPU) film and the modified TPU (M‐TPU) film containing 2.0 wt.% inorganic UV absorbers mixture (nano‐ZnO/CeO 2 with weight ratio of 3 : 2) and 0.5 wt.% organic UV absorbers mixture (UV‐531/UV‐327 with weight ratio of 1 : 1) were prepared by spin‐coating technique. The accelerated aging…
The syntheses, crystallography and magnetic properties of a series of compounds of formula trans-[Fe(II)(L(1))2(NCX)2] (X = S, Se, BH3 (1-3)), cis-[Fe(II)(L(2))(NCX)2]·CH2Cl2 (X = S, Se, BH3 (4-6)) and trans-[Fe(II)(L(3))(NCX)2]n (X = S, Se (7-8)) are described (L(1) = 6-chloro-N(2),N(2)-diethyl-N(4),N(4)-di(pyridin-2…
We report a novel cluster, [{Pt(C6F5)(bzq)}2Pb(Spy)2] 1, that displays reversible vapoluminescence to specific organic vapours; this behaviour can be related to the stereochemical activity of the lone pair around the Pb(II) in the ground state and to the distinct distortion of the coordination environment (1 and 1-sol…
The fabrication of highly monodisperse silica coated Au NPs by the microemulsion approach and the selection of the nanostructure morphology have been described. Several experimental conditions, synthetic parameters and post-preparative strategies such as reaction time, precursor concentration, size selection technique…
Chemically synthesised In(Zn)P alloy nanocrystals are doped with Eu(3+) ions using europium oleate as a molecular precursor and are subsequently covered with a ZnS shell. The presence of zinc in the synthesis of the InP core nanocrystals leads to the formation of an In(Zn)P alloy structure, making it possible to obtai…
To fabricate an efficient releaser of heparin, which is an extensively used anticoagulant, aluminum containing plugged mesoporous silica SBA-15 is prepared using a one-pot synthesis process. A suitable aluminum additive in the starting mixture enables plugs to be formed inside hexagonal channels and Al species to be i…
The thin layers of a second phase (also called complexions) in grain boundaries (GB) and triple junctions (TJs) are more and more frequently observed in polycrystals. The prewetting (or premelting) phase transitions were the first phenomena proposed to explain their existence. The deficit of the wetting phase in case…
The HA is present in almost all vertebrates and plays a critical role in tissue development and cell proliferation, it has been demonstrated to promote wound healing and involved in angiogenesis and inflammation. Also polynucleotydes (PN) have proved to promote the “in vitro” growth and activity of human fibroblasts a…
Semiconducting zinc oxide (ZnO) nanorods were obtained in bulk quantity by an hexamethylenetetramine (HMTA)-assisted hydrothermal method at low temperature (90°C) with methenamine ((CH3)6N4 as surfactant and catalyst and zinc nitrate Zn(NO3)2·6H2O as Zn source. The structure and phase of ZnO nanorods were studied usin…
Iodide, as a biologically important anion, it remains a worthwhile yet challenging undertaking to find a sensitive and specific approach to provide a technically simple iodide detection. In this article, it was found that no other ions than iodide-induced anisotropic growth of gold nanocrystals (AuNCs) originated from…
The self-assembly and the resulting morphology of a set of asymmetrically substituted perylene diimide is discussed. We synthesized perylene diimides with hydrophilic Jeffamine® (PEO/PPO co-oligomer) attached to the imide nitrogen on one side and (hydrophobic) alkyl chains of different lengths on the other. Although s…
A new family of squarylium monoalkylamides and dialkylamides was synthesised and its organogelation ability was evaluated. We found that both squarylium monoalkylamides and dialkylamides formed organogels in DMF. We also found that ion-selective organogel formation was observed in DMF solutions containing metal ions,…
Composite mesostructures consisting of organosilica with isocyanurate bridging groups and alumina have been synthesized using evaporation-induced self-assembly (EISA) in the presence of a triblock copolymer, Pluronic P123, in absolute ethanol solution. These mesostructures were prepared using aluminum isopropoxide and…
A novel eighteen membered chiral macrocyclic dicarbene-digold complex [(μ-diNHC)Au(I)]2[OTF]2 (8-(+/-)) was synthesized and characterized. Starting with enantiopure diNHC imidazolium salt ligand precursors enables access to the enantiopure versions of the digold(I) metallamacrocycles, 8-(+) and 8-(-). In vitro cytotox…
A new design of fully automatic system was built up to produce multiwalled carbon nanotube (MWCNT) using arc discharge technique in deionized water and extra pure graphite multiple electrodes (99.9% pure). The goal of the experimental research is to determine the yield of CNT in two different cases: (a) single plasma…