Materials Literature
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A straightforward condensation technique was used to prepare new poly(thiourea-amide) (PTA), in this attempt. Halloysite silica nanotubes (SiNTs) were prepared and utilized as fillers to produce novel organic-inorganic hybrid materials. Fine compatibility in PTA/SiNTs was confirmed by FESEM; where halloysite filler re…
This article describes the synthesis of a DNA–polymer, being the nucleotide sequence an aptamer selected in vitro to target specifically the immunoglobulin E (IgE) protein, an allergy biomarker. Subsequent to coupling to poly(2‐alkyl‐2‐oxazoline) with N ‐Boc protected amino acid side chains, the resulting amphiphilic…
We demonstrated a large-scale, low-cost and rapid flame synthesis of hydrophobic magnetic chain-like nanoparticles (HMCNPs) composed of core–shell Fe2O3@SiO2 nanoparticles. The liquid marble made up of HMCNPs is highly compressible with rapid self-recovering ability mainly due to the intriguing elastic behavior and ma…
The interactions of bovine serum albumins (BSA) with Au-Ag core-shell nanorods have been studied using fluorescence spectroscopic techniques. It was observed that Ag coated Au nanorods exhibit higher fluorescence quenching efficiency compared with bare Au nanorods. The fluorescence quenching efficiency could be furthe…
This study addresses the effects of mesopore orientation on mesostructural stability and crystallization of titania thin films during calcination based on measurements with in-situ grazing incidence small angle X-ray scattering (GISAXS). Complementary supporting information is provided by ex-situ electron microscopy.…
The structure of copper(II) complexes formed with triethanolamine (TEA) core poly(amidoamine) (PAMAM) dendrimers from generation 0 (G0) to 4 (G4) were investigated by the electron paramagnetic resonance (EPR) technique and molecular simulations. Different square planar coordination modes were detected as a function of…
We report the in situ growth of p and n-type graphene thin films by ultraviolet pulsed laser deposition in the presence of argon and nitrogen, respectively. Electron microscopy and Raman studies confirmed the growth, while temperature dependent electrical conductivity and Seebeck coefficient studies confirmed the pola…
Abstract Two tetrathiafulvalene (TTF) functionalized 2,2′:6′,2″‐terpyridine derivatives, 4′‐tetrathiafulvalene‐2,2′:6′,2″‐terpyridine (L 1 ) and 6,6″‐dimethyl‐4′‐tetrathiafulvalene‐2,2′:6′,2″‐terpyridine (L 2 ), were synthesized and characterized. Based on L 1 and L 2 , four electrochemically active TTF‐containing iro…
Abstract A series of lanthanide monoborohydrido complexes {C 6 H 4 ‐1,2‐[NC(R)NR′] 2 }Ln(BH 4 )(L) n (Ln = Y, Nd, Sm; R = t Bu, Ph; R′ = 2,6‐Me 2 C 6 H 3 , SiMe 3 ; L = dme = dimethoxyethane, n = 1; L = thf, n = 2), in which lanthanides are coordinated by bulky ansa ‐bis(amidinato) ligand systems with a conformational…
Colloidal liquid crystals of inorganic nanosheets with thickness of around 1 nm and lateral dimensions of several micrometers prepared by exfoliation of a layered niobate are converted to hierarchically organized arrays whose structures are controlled from the nano to macroscopic length scale through the growth of liq…
The dielectric properties of 0.4Ba0.6Sr0.4TiO3-0.6La(Mg0.5Ti0.5)O3 ceramics and their tunability under external optical fields are investigated at room temperature by means of terahertz time-domain spectroscopy. Application of the optical field leads to an appreciable tuning of the permittivity, which reaches up to 16…
Multiferroic NiFe (∼30 nm)/Pb(Mg1/3Nb2/3)O3–PbTiO3(PMN–PT, ∼220 nm) bilayered thin films were grown on common Pt/Ti/SiO2/Si substrates by a combination of off-axis magnetron sputtering and sol-gel spin-coating technique. By using AC-mode magneto-optical Kerr effect technique, the change in the Kerr signal (magnetizati…
A new series of hydrogen bonded liquid crystal (HBLC) complexes, made up with substituted benzoic acids (BAs) and nonyloxy benzoic acid, viz., x-(p/m)BA:9OBAs are reported for x = F, Cl, Br and –CH3 substituted at para (p) or meta (m) positions of BA moiety. Proton nuclear magnetic resonance (1H-NMR) spectrum confirms…
This paper presents a demonstration experiment of ion cyclotron wall conditioning (ICWC) on TEXTOR covering all ITER wall conditioning aims and discusses the implications for ITER. O 2 /He-ICWC applied to erode carbon co-deposits removed 6.6 × 10 21 C-atoms (39 pulses, 158 s cumulated discharge time). Large oxygen ret…
A simple and straightforward method is presented for the direct proton beam activation of 18 O‐enriched titanium dioxide nanoparticles (TiO 2 NPs) via the 18 O(p,n) 18 F nuclear reaction in order to assess the biological fate of the NPs using positron emission tomography (PET). The radiolabeling of the NPs does not al…
The short contact time oxidation processes for producing synthesis gas and for producing olefins result from the coupling of heterogeneous catalysis characteristics and flameless combustion in porous media. The technological potential of these methods appears huge, and the fundamental concepts development has been lin…
A channel suspension method to fabricate high performance graphene field effect transistors (GFET) is presented in this paper. The balance is reached between gate efficiency and carrier mobility. A GFET with 15 μm × 15 μm gate dimension achieves a high normalized transconductance. Peak intrinsic carrier mobility is ex…
In a recent article (Gudlur et al. PLOS ONE, 2012, 7 (9) e45374), we described the special properties of a mixed branched peptide assembly in which equimolar bis(FLIVI)-K-KKKK and bis(FLIVIGSII)-K-KKKK self-associate to form bilayer delimited capsules capable of trapping solutes. These polycationic vesicle-like capsul…
Based on numerical simulation and experiment, we demonstrate a dynamic single-particle-film Surface-enhanced Raman scattering (SERS) system enabled by manipulation of a single gold nanoparticle by plasmonic nano-tweezers (PNT). A corresponding dynamic plasmonic gap-mode is induced by the hybridization of the surface p…
We used high-pressure Raman spectroscopy to study the evolution of vibrational frequencies of the phase change materials (PCMs) Ge2Sb2Te5, GeSb2Te4, and SnSb2Te4. We found that the critical pressure for triggering amorphization in the PCMs decreases with increasing vacancy concentration, demonstrating that the presenc…