Materials Literature
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A straightforward general synthetic access to N-aryl-1,3-dithiolo[4,5-c]pyrrole-2-thione derivatives 6 from acetylenedicarbaldehyde monoacetal is depicted. In addition to their potentiality as precursors to dithioalkyl-pyrrole derivatives, thiones 6 are key building blocks to N-aryl monopyrrolo-tetrathiafulvalene (MPT…
Chromium oxide solubility was measured in soda–lime–silicate melts using a thermochemical reactor allowing an independent control of temperature, glass composition, and oxygen fugacity in a closed system. This investigation performed in the ternary Na 2 O–CaO– x SiO 2 (NCS) system showed that the physicochemical and t…
Layer-by-layer (LBL) assembly of functionalized nanoparticles (FNPs) within a polyelectrolyte network is described (see image). The LBL-NP-assembly-based modification can be used to engineer surfaces with multiple functions such as controlled (multiple-) drug release with distinct release kinetics and enhanced contras…
The inhibiting efficiency of 2-mercapto-1-methylimidazole (MMI) on copper corrosion in sulfuric acid was investigated at 30 °C. Its effectiveness was assessed through electrochemical impedance spectroscopy, potentiodynamic polarization and gravimetric measurements. The results of study reveal that the inhibition effic…
Results of gas phase reactivity studies on group six transition metal suboxide clusters, Mo(3)O(y) (-), Mo(2)WO(y) (-), MoW(2)O(y) (-), and W(3)O(y) (-) (Mo((3-x))W(x)O(y) (-), x=0-3; y=ca. 3-9) with both D(2)O and CO(2) are reported. Sequential oxidation for the more reduced species, Mo((3-x))W(x)O(y) (-)+D(2)O/CO(2)…
The increased incidence of both type 2 diabetes mellitus and obesity has prompted the need to develop physiologically relevant adipose tissue models for controlled study of both normal and diseased adipose functions. Insulin resistance, characteristic of both type 2 diabetes mellitus and obesity, is often preceded by…
Here is demonstrated a novel approach to reversible control over nanoparticle (NP) stability, permitting facile recovery for the reuse of inorganic NPs. For the first time, the separation of NPs is achieved by suspending the nanostructures in a background-supporting colloidal fluid, which itself shows a liquid-liquid…
It is widely assumed that commercial extracellular gadolinium-based contrast agents do not bind to proteins. Here, nuclear magnetic relaxation dispersion was used to characterize the interaction between the contrast agents gadodiamide and gadopentetate dimeglumine and the proteins human serum albumin, chicken egg whit…
In this work, ZnO nanoparticles loaded cellulose acetate (ZOLCA) films have been prepared and characterized by XRD, SPR and SEM analysis. The moisture permeation properties of the films have been investigated. The GAB isotherm model has been found to fit well on the moisture uptake data obtained at different temperatu…
Porous lead zirconate titanate (PZT) ceramics with three‐dimensionally interconnected pores were prepared using a novel tert‐butyl alcohol‐based gel‐casting process, an unconventional technique in acquiring high‐porosity ceramics. In the present work, PZT ceramics with porosity ranging from 31.3% to 58.6% were fabrica…
Highly densified TiC, ZrC and HfC based ultrahigh temperature heteromodulus ceramics (HMC), containing 10-50 vol.-% of low modulus phase in the form of particulate graphite, were prepared by hot pressing at 2700°C and 12 MPa in argon atmosphere. The microstructure, elastic characteristics, flexural and compressive sta…
One of the key challenges hindering the clinical intervention against brain cancer is defined by the inability to detect brain tumors at an early enough stage to permit effective therapy. Furthermore, the rapid growth and severe lethality of this form of cancer predicate the vital importance of monitoring the developm…
We present results from composite plasmonic nanostructures designed to achieve the cascaded enhancement of electromagnetic fields at optical frequencies. Our structures comprise a small metallic nanodisc suspended above a larger disk. We probe the optical properties of these structures by coating them with a layer of…
The most common approach to seal an electrolyte or a ceramic anode with a metallic interconnect in solid oxide fuel cells of planar configuration (pSOFC), in order to achieve a hermetic and stable cell, is to use rigid glass or glass–ceramic (GC) seals. The properties of these sealants can be tailored specifically for…
P,X,N(2)-type phosphaporphyrins and phosphacalixphyrins (X = N, S) bearing a perfluorophenyl (C(6)F(5)) group at the core phosphorus atom were prepared in high overall yield from 1-perfluorophenyl-2,5-di(ethoxycarbonyl)phosphole as a common starting material. In addition, P-C(6)F(5) P,S(2),N(2)-type sapphyrin was succ…
Poly(thiophene) (PTh) nanoparticles with various sizes were directly prepared by Fe 3+ -catalyzed oxidative polymerization of thiophene with varying hydrogen peroxide (H 2 O 2 ) concentrations. In the polymerization, the FeCl 3 /H 2 O 2 (catalyst/oxidant) combination system was used as an initiator couple. Under the o…
The observation of metallic behavior at the interface between insulating oxides has triggered worldwide efforts to shed light on the physics of these systems and clarify some still open issues, among which the dimensional character of the conducting system. In order to address this issue, we measure electrical transpo…
In this paper, we report the field and temperature dependence of low-temperature specific heat down to 400 mK and in magnetic fields up to 9 T of the electron-doped Ba(Fe 0.92 Co 0.08 ) 2 As 2 superconductor. Using the phonon specific heat obtained from pure BaFe 2 As 2 , we found a normal state Sommerfeld coefficient…
The layer-by-layer (LbL) codeposition of polyelectrolyte−polyelectrolyte complexes (PECs) and free polyelectrolytes with oppositely charged polyelectrolytes for the fabrication of polymeric films has been systematically investigated. Aqueous dispersions containing positively charged diazoresin (DAR)−poly(acrylic acid)…
Reversible switching of the electrode interface between OFF/ON states is achieved by electrochemically triggered reorganization of a nanostructured polymer brush associated with the interface. The switching process is accomplished by local interfacial pH changes allowing operation in buffered biological environments (…