Materials Literature
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Mammalian cells take up nanoparticles (NPs) and some NPs increase ROS. We use imaging and measure ROS in parallel to evaluate NP-cell interactions with type I-like alveolar epithelial cells exposed to NPs at 1.2 µg/cm(2) . Titanium dioxide (Ti0(2)), gold (Au), silver (Ag), and manganese (Mn) were internalized by R3-1…
The reaction of cobalt salts with phosphonic acids in the presence of 6-chloro-2-hydroxypyridine as a co-ligand, using sodium methoxide as a base, leads to a series of new polymetallic cobalt cages. Variation of the phosphonate present and the cobalt salt leads to {Co(6)Na(8)}, {Co(12)}, {Co(13)Na(6)}, {Co(14)Na(4)} a…
Conductive Pickering-polyHIPE composite foams are prepared using loadings of block copolymer stabilized single-walled carbon nanotubes below 0.1 wt%.
In order to elucidate the electronic state and the conduction mechanism of La(2-x)Sr(x)NiO(4+delta) at high temperatures, electrical conductivity, Seebeck coefficient, and nonstoichiometric oxygen content of La(2-x)Sr(x)NiO(4+delta) (x = 0, 0.2, 0.4) were measured as a function of Sr content, temperature, and oxygen p…
Nanoparticles of and Eu-doped were hydrothermally synthesized varying the process parameters, such as the volume ratio of the cation precursor solutions, temperature and time of growth, and dopant concentration. The nanoparticles were structurally characterized by X-ray diffraction, high-resolution transmission electr…
Biological oxidative damage (BOD) has been recognized as a key toxicity mechanism with potential as a novel global metric for nanomaterial (NM) exposure and rapid toxicity screening. A ‘Ferric reducing ability of serum (FRAS)’ assay, recently optimized by our group, was used to quantitate the degree of BOD induced by…
For commercial success, bioplastics have to possess adequate physical properties. But the same properties of biopolymers — such as starch — that make them environmentally attractive feedstocks can affect their performance as materials. Despite the attractive properties of plant-based plastics, there have been few comm…
A series of amine- or diamine-functionalized mesopolymers with cubic or hexagonal mesostructures have been prepared by two-step chemical modification procedures involving chloromethylation of the FDU-type mesoporous resol materials first with chloromethyl methyl ether, and a subsequent amination reaction with methylam…
The size of silicon nanocrystals is finely tuned by applying a chemical etching process, leading to differently coloured visible luminescence.
In this study, we demonstrate a facile and simple synthesis of quantum dot (QD)-polymer composites. Highly fluorescent semiconducting CdSe/ZnS quantum dots were embedded in different commercially available polymers using one easy step. QD-polymer composite nanoparticles were also synthesized using template-assisted sy…
A model for transport in amorphous anodic oxide films was developed in which ion migration was driven by gradients of mechanical stress as well as electric potential and which included viscoelastic creep of the oxide. Simulations were presented for the galvanostatic growth of planar barrier-type anodic aluminum oxide…
There is a need in industry to supply safe, economical, and reliable techniques to characterize surface treatments such as case hardening and peening of steel components and structures, both at the manufacturing stage and in service. Magnetic Barkhausen emission (MBE) has proved successful for these tasks, but has sev…
Emulsions consisting of n-alkane/water using alpha, beta, and gamma-cyclodextrin (alpha, beta, and gamma-CD) as an emulsifier were prepared and characterized by means of several physicochemical techniques. A phase diagram of the n-alkane/CD/water system showed that an oil in water (O/W) emulsion can be prepared from a…
This paper describes the application of dynamic combinatorial libraries (DCL) towards the discovery of self-assembling nanostructures based on aromatic peptide derivatives and the continuous enzymatic exchange of amino acid sequences. Ultimately, the most thermodynamically stable self-assembling structures will domina…
In this study, microscopic aggregates of copper oxide (CuO) nanoparticles were visualized in porous media for the first time. Two-dimensional microscopic visualization results showed that CuO aggregates formed in porous media regardless of flow velocity. The results demonstrated that flow velocity determined the densi…
Rod-shaped Zr–Zn particles are commonly observed within individual α-Mg grains in magnesium alloys containing both Zr and Zn elements. In the present study, the identity, morphology, and orientation of such solid-state precipitate particles formed in a Mg–1Ca–1Zn–1Zr (wt.%) alloy have been characterized using analytic…
Cubic ordered mesoporous yttrium phosphate (YPO4) and lanthanide-doped yttrium phosphates (YPO4:Ln3+, Ln3+ = Eu3+, Tb3+ and Ce3+) have been synthesized successfully through the nanocasting route by employing the Y(NO3)3:Ln(NO3)3/H3PO4/HNO3 system as a guest unit and KIT-6 silica as a hard template host, and their text…
Gold nanoparticles of various shapes including pentagonal, hexagonal, prismatic, branched (multipods), spherical and oval have been prepared by using different generations of peptidic dendrons as templates at room temperature without adding any external reducing or stabilizing agents. Each peptide based dendron molecu…
Heterometallic {3d-4f-5d} aggregates with formula [{LMe2Ni(H2O)Ln(H2O)4.5}2{W(CN)8}2]·15H2O, (LMe2 stands for N,N′-2,2-dimethylpropylenedi(3-methoxysalicylideneiminato) Schiff-base ligand) with Ln = Gd, Tb, Dy, have been obtained by reacting bimetallic [LMe2Ni(H2O)2Ln(NO3)3] and Cs3{W(CN)8} in H2O. The hexanuclear com…
Mu-nitrido-bis [tetra-(hexyl-sulfonyl)phthalocyaninatoiron] (3a) and mu-nitrido-bis [tetra-(tert-butylsulfonyl) phthalocyaninatoiron] (3b) complexes have been prepared and fully characterized by electrospray ionization mass spectrometry, UV-Vis, FTIR, EPR, Mössbauer techniques as well as by X-ray photoelectron and Fe…