Materials Literature
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The non-luminous precursor, 2-(1-pyrenyl)-9,10-dihydro-9,10-ethanoanthracene-11,12-dione, was photochemically converted to highly-fluorescent 2-(1-pyrenyl)anthracene quantitatively in solution and in the PMMA film and the fluorescence quantum yield of the acene in benzonitrile was as high as 0.99.
Ethyne elaboration of a (porphinato)Zn(II) (PZn) chromophoric core renders fine control over the zero-field splitting (ZFS) parameters of the lowest energy photoexcited triplet state (T1), resulting in the ability to manipulate the spin distribution and establish highly symmetrical coincident optical and magnetic prin…
Given the growing importance of drug and gene delivery systems, imaging agents, biosensors, and theranostics, there is a need to develop new multifunctional and biocompatible platforms. Here we synthesized and fully characterized a family of novel multifunctional and completely monodisperse dendritic platforms. Our sy…
Oxalate (ox) and phenanthroline (phen) ligands based one dimensional spin chain molecular magnets, [{Fe(Δ)Fe(Λ)}1−x{Cr(Δ)Cr(Λ)}x(ox)2(phen)2]n (x = 0, 0.1, and 0.5) have been designed, and synthesized using a hydrothermal synthesis method. The Rietveld refinement of the powder X-ray and neutron diffraction patterns at…
A fluorocarbon polymer generated by plasma polymerization of CF 4 /CH 2 F 2 used as a model polymer for sidewall residues was subjected to ultraviolet (UV) irradiation (λ = 254 nm). Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy indicated that the as-deposited fluorocarbon polymer mainly…
Using a centrifuge, we measure the (pressure vs. density) equation of state of Pickering emulsions stabilized by hard-sphere colloids, in order to elucidate the particle contribution to their mechanical properties. Moreover, we have developed a transparent Pickering emulsion, allowing us to determine local volume frac…
Self-assembled nanofibers with different morphologies were successfully fabricated using amphiphilic low-molecular-weight (LMW) azopyridinium compounds having hydrophobic substituents on benzene groups. The possible driving force and self-assembly principles in nanofiber formation processes were proposed based on meas…
Microphase separation through competitive hydrogen bonding interactions in ABC/D triblock copolymer/homopolymer complexes is studied for the first time. This study investigated self-assembled nanostructures that are obtained in the bulk, by the complexation of a semicrystalline polystyrene-block-poly(4-vinylpyridine)-…
Siliconboron carbonitride ceramics possess exceptional high-temperature stability, creep resistance and electrical properties, thus are promising materials for use as coatings, membranes, high temperature fibers and in microelectronics. However, using experiments to investigate the nanostructures and high temperature…
A new generation of anodes for PC-SOFCs based on catalytically promoted La0.75Ce0.1Sr0.15CrO3−δ (LSCCe) is presented. LSCCe is selected as the electrode backbone structure, due to its superior total conductivity over that of LSC. The infiltration of catalytically highly active nickel nanoparticles into the sintered LS…
The binding of chlorosulphonated paraffins to collagen triple helices is studied by means of classical molecular dynamics simulations and experimental spectroscopic techniques in order to disclose the principal characteristics of their interaction during the leather fattening process. Indeed, collagen is the main targ…
New method was used to prepare magnetite nanoparticle based on reduction of Fe(III) ions with potassium iodide to produce Fe 3 O 4 nanoparticle. The prepared magnetite was stabilized with cross‐linked polymer based on 2‐acrylamido‐2‐methylpropane sulfonic acid (AMPS to prepare novel core‐shell nanogel. In this respect…
In this study we present a novel type of hybrid nanocomposite prepared by mixing maghemite nanoparticles and a chiral liquid crystalline compound. The hybrid system exhibits ferroelectric as well superparamagnetic properties. The impact of nanoparticles and the effect of an applied magnetic field on the ferroelectric…
Peptide nanofibres (PNFs) have gained increasing interest as engineered biomaterials for drug delivery and tissue repair because of the versatility in design they offer through the self-assembly of amphiphilic peptide molecules. Their self-assembly is governed by hydrophobic interactions and hydrogen bonds between pep…
Here, we report for the first time on the successful fabrication of monodispersed silver nanocubes with regular shape and controlled size in the solid phase via a novel ion-exchange self-assembly technique by using water-soluble poly(amic acid) salt as the intermediate and silver nitrate as the metal precursor. By sim…
We have comparatively investigated excitonic features between singly and doubly alkyl bridged Zn(II)porphyrin dimers (SLZn and DLZn, respectively) with Zn(II)tetraphenylporphyrin (ZnTPP) as a reference by using various time-resolved anisotropy measurements. Time-resolved fluorescence anisotropy decay of the B-state of…
An amphiphilic peptide dendron-jacketed dextran polymer was designed and synthesized via click chemistry. The biocompatible peptide dendron-jacketed dextran could self-assemble into nanoparticles and serve as drug carriers in aqueous media.
A compositionally new osmium oxide, Ca2InOsO6, which crystallizes in a double-perovskite structure, was synthesized through a high-pressure and high-temperature synthesis method. The crystal structure of Ca2InOsO6 was determined by X-ray diffraction to be monoclinic with the space group P21/n, like other double-perovs…
Phosphonic and carboxylic fluorescent nanoparticles have been fabricated by direct reprecipitation in water. Their fluorescence properties strongly differ from those of the corresponding esters where strong H-bonding formation is prohibited. Comparative experiments between the two acid derivatives, differing only in t…
An anionic conjugated polyelectrolyte based on polydiphenylacetylene showed a significant fluorescence turn-on response to positively-charged proteins through a conformational relaxation of its intramolecular stack structure.