Materials Literature
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Coupons of a Nb-silicide-based alloy with the nominal composition of 47Nb–25Ti–8Hf–2Cr–2Al–16Si (at-%) were coated with Co-, Ni- and FeB-modified M7Si6-based layers using pack-cementation. Subsequently, on one side of the coated samples, environmental/thermal barrier coatings (E/TBCs) of yttria partially stabilised zi…
Di(2-pyridylmethyl)amine carboxylates with short alkyl linkers afford coordination polymers whereas the longer homologues favour macrocyclic topologies.
We propose and evaluate the use of metallocene compounds as reducing agents for the chemical vapour deposition (and specifically atomic layer deposition, ALD) of the transition metal Cu from metalorganic precursors. Ten different transition metal cyclopentadienyl compounds are screened for their utility in the reducti…
Determination of the mechanical properties of nanostructures is an essential step in their applications from macroscopic composites to nano-electro-mechanical systems. In this paper the elastic constants, i.e. the elements of the stiffness tensor, of a typical single walled carbon nanotube are predicted via molecular…
Normalized absorption coefficient at 590 nm of solutions of extracted CV from 50 nm and 500 nm thick PNIPAm- co -AAc films deposited on Au substrates. Releases were measured for temperatures below (25 °C) and above (40 °C) the LCST.
A mono-adenine-functionalized pillar[5]arene and a guest including uracil were prepared. They formed a novel four-unit [c2]daisy chain both in the solid state and in a chloroform solution. As far as we know, this [c2]daisy chain is the first one without a covalently bound linear thread. This unique assembly behavior i…
This paper reports a mild preparation of NiO/PANI gel as a Li-ion battery anode, which exhibits enhanced electrochemical performance and cycle stability.
The dynamic mechanical behavior and energy absorption characteristics of nano‐enhanced functionally graded composites, consisting of 3 layers of vertically aligned carbon nanotube (VACNT) forests grown on woven fiber‐glass (FG) layer and embedded within 10 layers of woven FG, with polyester (PE) and polyurethane (PU)…
Electrical arc discharge in liquid is a fast, cost-effective and an environmentally benign way for synthesis of nanomaterials. In this research iron based nanoparticles were synthesized via DC arc discharge submerging in deoxidized water and the effect of dissolved oxygen in arc discharge medium on morphology, crystal…
We demonstrate a method of electroless selective silver deposition on graphene edges or between graphene islands without covering the surface of graphene. Modifications of the deposition recipe allow for decoration of graphene edges with silver nanoparticles or filling holes in damaged graphene on silica substrate and…
The Coulomb band gap and Schottky barrier height of the MWNT–PDMS composite can be tuned by the MWNT loading, leading to performance variation on flexible electronics.
Fatal accidents can occur when workers do not use insulating safeguards to prevent electric shocks.Many of these accidents are caused by contact with low and high voltage objects. These accidents may not be entirely eliminated through the use of insulating safeguards. Workers often fail to use msafeguards because they…
Collagen is an extracellular matrix protein with great importance in biomedical application. The search for collagen from various sources is intensified especially from marine source. This study was carried out to extract collagen from a Malaysian local fresh water fish, Clarias batrachus and characterized its biomedi…
The local functionalities of biocompatible objects can be characterized under conditions similar to the operating ones, using scanning electrochemical microscopy (SECM). In the case of alginate beads entrapping carbon nanotubes (CNTs), SECM allows evidencing of the local conductivity, organization, and communication b…
Contradictory results have been reported for in vitro evaluations of whether zinc oxide nanoparticles (ZnO NPs) are cytotoxic. Though there have been reports of ZnO NPs cytotoxicity due to Zn ions released from the nanoparticles, there have also been reports concluding that Zn ions are not cytotoxic. This inconsistenc…
C-Methyl resorcinarene bis-crown-5 (1) with pendant methyl groups at the lower rim was prepared and crystallized in various solvent mixtures with and without selected metal salts. The crystal structures of two polymorphic forms of unsolvated 1 (1-I and 1-II), three solvates (acetonitrile, chloroform and dichloromethan…
The methane C-H bond is extremely stable, requiring significant energy input in reforming processes. We present a novel mechanism for energetically favourable methane C-H bond breaking over yttrium stabilised zirconia in the presence of oxygen, based on results of Density Functional Theory (DFT) and HSE06 hybrid funct…
The aim of this study was to synthesize cadmium telluride nanoparticles (CdTe NPs) modified apoferritin, and examine if apoferritin is able to accommodate CdTe NPs. Primarily, the thermostability of horse spleen apoferritin was tested and it's unfolding at 70 °C was observed. Cadmium telluride nanoparticles (CdTe NPs)…
A new class of stabilizers for gold nanoparticles has been develop with non-toxic thiocarbohydrates that were prepared from d -(+)-gluconic acid δ-lactone and aminoalkylthiols.
In this paper, quartzite and sandstone are numerically investigated under planar shock loading. Those geologic materials consist of cemented quartz grains. Quartzite has a compact structure whereas sandstone has a porosity of typically around 20%. A mesoscale (grain scale) model is developed in order to catch inter-gr…