Materials Literature
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Hierarchical dandelion-like CuO (HD–CuO) microspheres composed of nanoribbons were prepared via a facile hydrothermal method. The samples were characterized by nitrogen adsorption, X-ray diffraction, temperature-programmed reduction, thermogravimetric analysis, transmission electron microscopy and scanning electron mi…
In this study, a class of surface enhanced Raman spectroscopy (SERS) encoded core–shell nanospheres was synthesized as nano-SERS-tags for detecting specific DNA targets based on the sandwich hybridization assays. These core–shell nanospheres were synthesized by first depositing a layer of Ag-NPs (nanoparticles) onto t…
The effect of the film-forming solution pH on the triple-helix content, thermal stability, and mechanical properties of gelatin films was investigated. The films were prepared from solutions at different pHs of type A pigskin gelatin, and their mechanical characteristics were determined. At pHs higher than 9 and lower…
We report a new strategy to obtain high performance polymer-grafted multi-walled carbon nanotubes (MWCNTs). Chlorophenyl-functionalized MWCNTs, obtained through the in situ generation and reaction of diazonium compounds, were subjected to polymerization in the presence of Na2S and 1,4-dichlorobenzene in order to yield…
We review recent work done on the rheology of thermosensitive suspensions. These systems consist of aqueous suspensions of core–shell particles having a solid polystyrene core and a shell of thermosensitive crosslinked poly(N-isopropylacrylamide) (PNIPA). In cold water the thermosensitive PNIPA-network is swollen lead…
(La 0.8 Sr 0.2 )MnO 3 -Yttria Stabilized Zirconia (LSM-YSZ) cathodes fired at various temperatures were studied using Focused Ion Beam – Scanning Electron Microscopy (FIB-SEM) three-dimensional (3D) tomography and Electrochemical Impedance Spectroscopy (EIS). The total cathode polarization resistance, measured at 800°…
Two types of novel oxalate-bridging rare-earth-substituted Keggin-type phosphotungstates {[(α-PW(11)O(39)) RE(H(2)O)](2)(C(2)O(4))}(10-) (RE = Y(III) for 1, Dy(III) for 2, Ho(III) for 3 and Er(III) for 4) and {(α-x-PW(10)O(38))Tm(2)(C(2)O(4))(H(2)O)(2)}(3-) for 5 have been synthesized by reaction of [α-PW(11)O(39)](7-…
Nanofibrillated cellulose (NFC, also called microfibrillated cellulose and native cellulose nanofibers) is an attractive sustainable nanofibrillar material to template functionalities. It allows the modification of wetting properties, but so far surfaces with NFC have suffered from high adhesion of water droplets, eve…
Nanostructured Bi(2-x)Cu(x)S(3) (x = 0, 0.002, 0.005, 0.007, 0.01, 0.03) thermoelectric polycrystals were fabricated by combining mechanical alloying (MA) and spark plasma sintering (SPS) methods. The effect of Cu content on the microstructure and thermoelectric property of Bi(2-x)Cu(x)S(3) bulk samples was investigat…
Iron oxide nanoparticles have found widespread applications in different areas including cell separation, drug delivery and as contrast agents. Due to water insolubility and stability issues, nanoparticles utilized for biological applications require coatings such as the commonly employed polyethylene glycol (PEG). De…
Novel semiconductor Cu2CdSnS4 nanorods with a wurtzite structure have been successfully synthesized and characterized in detail. The suitable band gap of 1.4 eV and photoresponse property of Cu2CdSnS4 nanorods indicate that they have a high potential application in low-cost thin film solar cells.
The step-up synthesis of amidoxime-functionalised periodic mesoporous organosilicas (PMOs) with an ordered hexagonal structure was achieved in two steps: (i) direct co-condensation of diaminomaleonitrile and 3-isocyanatopropyltriethoxysilane (IPTES) and (ii) chemical modification of bridged nitrile into amidoxime usin…
We created light-directed dynamic spheres based on simple azobenzene monomers showing (i) a high yield of reversible trans↔cis photoisomerization and (ii) noticeable phase transition from crystalline to isotropic states under UV light irradiation at ambient temperature.
A self-quenched zinc(II) phthalocyanine dimer linked with an acid-sensitive ketal unit has been prepared, which can be activated in an acidic environment (pH = 5.0-6.5) as a result of the cleavage of the ketal linker and separation of the phthalocyanine units, resulting in enhanced fluorescence emission and singlet ox…
The intermetallic compound Mn5Si3 has been studied by high-resolution Time-of-Flight (TOF) neutron powder diffraction. At room temperature, Mn5Si3 is paramagnetic and it crystallizes in the P63/mcm hexagonal space group. Magnetic susceptibility and specific heat measurements show clearly two major anomalies. At 100(1)…
An anion-adsorption technique in which [Au(OH)(4)](-) is preferentially adsorbed onto La(2)O(3) and La(2)O(2)SO(4) surfaces is used to prepare two catalysts active for the low-temperature water-gas shift reaction.
In this paper we study the distributed optimal control for the Cahn–Hilliard system. A general class of free energy potentials is allowed which, in particular, includes the double-obstacle potential. The latter potential yields an optimal control problem of a parabolic variational inequality which is of fourth order i…
Porous anodic aluminium oxide has a long history of practical application for corrosion protection and coloring. In the last few decades a lot of hi-tech applications of this material have been found owing to the discovery of anodization conditions leading to the formation of highly ordered porous structures with a na…
This work reports for the first time a straightforward solvent-free chemical procedure to gain access to Δ-1-pyrroline grafted onto multiwalled carbon nanotubes by the 1,3-dipolar cycloaddition of the mesoionic 4-methyl-2-phenyloxazol-5(4H)-one.
A novel Near Infra-Red emitting BODIPY derivative is presented which exhibits the largest Stokes shift thus far reported for a BODIPY compound.