Browsing QUIO_Articles by Title
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Fabrication of gold nanoparticles in Therminol VP-1 by laser ablation and fragmentation with fs pulses
IOP Science (2014-10-22)This letter reports on a physical method to produce highly pure, size-controlled and well-dispersed spherical gold nanoparticles (NPs) in Therminol VP-1 by pulsed laser ablation in liquids (PLAL) using a 30 fs Ti:Sapphire ... -
Fast methodology for the reliable determination of nonylphenol in water samples by minimal labeling isotope dilution mass spectrometry
Elsevier (2013-08)In this work we have developed and validated an accurate and fast methodology for the determination of 4-nonylphenol (technical mixture) in complex matrix water samples by UHPLC–ESI-MS/MS. The procedure is based on isotope ... -
Ferrocenyl-Imidazolylidene Ligand for Redox-Switchable Gold-Based Catalysis. A Detailed Study on the Redox-Switching Abilities of the Ligand
American Chemical Society (2016)An imidazolium salt with a fused benzoferrocenyl was synthesized. This compound was used as an N-heterocyclic carbene (NHC) precursor, and the related ferrocenyl-imidazolylidene complexes Fc-NHC-MLn (MLn = IrCl(COD), ... -
Ferromagnetic Ligand Holes in Cobalt Perovskite Electrocatalysts as Essential Factor for High Activity Towards Oxygen Evolution
Royal Society of Chemistry (2019)The definition of the interplay between chemical composition, electro-magnetic configuration and catalytic activity requires a rational study of the orbital physics behind active materials. Apart from Coulomb forces, ... -
Field enhanced bulk conductivity of acceptor-doped BaTi1−xCaxO3−x ceramics
American Institute of Physics (2010)The electrical properties of Ca-doped BaTiO3 are very different when Ca substitutes onto Ba or Ti sites. The p-type semiconductivity of Ti-substituted ceramics increases reversibly by one to two orders of magnitude under ... -
Field enhanced bulk conductivity of BaTiO3 : Mg ceramics
Royal Society of Chemistry (2010)The electrical conductivity of ceramics of composition Ba(Ti1−xMgx)O3−x: 0.00003 ≤ x ≤ 0.01 increases with time on application of a small dc bias voltage in the range 1 to 50 V cm−1 and at temperatures in the range 200 to ... -
Field-enhanced bulk conductivity and resistive-switching in Ca-doped BiFeO3 ceramics
Royal Society of Chemistry (2014)The bulk conductivity at room temperature of Ca-doped BiFeO3 ceramics is p-type and increases reversibly by up to 3 orders of magnitude under the influence of a small dc bias voltage in the range B3 to 20 V mm1 . The ... -
Field-induced p-n transition in yttria-stabilized zirconia
Nature (2019)Oxide ion conducting yttria-stabilised zirconia ceramics show the onset of electronic conduction under a small bias voltage. Compositions with a high yttria content undergo a transition from p-type to n-type behavior at ... -
First Cyclic Carbodiphosphoranes of Copper(I) and Gold(I) and Their Application in the Catalytic Cleavage of X−H Bonds (X = N and O)
American Chemical Society (2009)Three new carbodiphosphorane complexes, (PHCP)M(tBuO) (PHCP = carbodiphosphorane; M = Cu, Au) and (PHCP)CuCl, were readily prepared by reaction of the carbodiphosphorane 2 with CuCl or AuCl(Me2S). The three complexes have ... -
Fluorescence and mass spectrometry studies of the interaction between naproxen and synthetic pseudopeptidic models in organic media
Elsevier (2009)Time-resolved/steady-state fluorescence and mass spectrometry measurements have shown the preferential binding of a non-steroidal anti-inflammatory drug (NSAID) like naproxen 4 to a synthetic pseudopeptidic receptor built ... -
Fluorescence of 1,2-Diaminoanthraquinone and its Nitric Oxide Reaction Product within Macrophage Cells
Wiley-VCH (2011)Nitric oxide (NO) is involved in many biological processes. Aromatic ortho-diamine derivatives are commonly used in the fluorescence imaging of NO in living cells. ortho-diamino (o-diamino) compounds are believed to react ... -
Fluorescent Acridine-Based Receptors for H2PO4–
American Chemical Society (2012)Two new pseudopeptidic molecules (one macrocyclic and one open chain) containing an acridine unit have been prepared. The fluorescence response of these receptors to a series of acids was measured in CHCl3. Receptors are ... -
Fluorescent macrocyclic probes with pendant functional groups as markers of acidic organelles within live cells
Royal Society of Chemistry (2014)A new family of acidity sensitive fluorescent macrocycles has been synthesized and fully characterized. Their photophysical properties including emission quantum yield and fluorescence lifetime have been determined. The ... -
Fluorescent styrylpyrylium probes for the imaging of mitochondria in live cells
(2021-10-07)Eight styrylpyrylium tetrafluoroborate salts have been synthesized and fully optically characterized by UV-vis absorption and fluorescence steady-state / time-resolved spectroscopies. The new dyes display strong emission ... -
Formal [3+2] Cycloaddition Reactions of Electron-Rich Aryl Epoxides with Alkenes under Lewis Acid Catalysis Affording Tetrasubstituted Tetrahydrofurans
MDPI (2020)We report on the regio- and stereoselective synthesis of tetrahydrofurans by reaction between epoxides and alkenes in the presence of a Lewis acid. This is an unprecedented formal [3+2] cycloaddition reaction between an ... -
Formation of Pyrazol-1,3,4-Thiadiazoles through 1,3-Dipolar Cycloadditions of 3-Thioxo-[1,2,4]-Triazepin-5-one with Nitrilimines: An Experimental and Computational study
Wiley-Blackwell (2009)In this work the results of experimental and computational study of the title compounds and some ancillary compounds are reported. Two bicyclic pyrazol-1,3,4-thiadiazole derivatives were synthesized by reaction between ... -
Free ion diffusivity and charge concentration on cross-linked polymeric ionic liquid iongel films based on sulfonated zwitterionic salts and lithium ions
Royal Society of Chemistry (2019)The properties of various mixtures of a zwitterionic ionic liquid (ZIs-1) and LiNTf2, including their conductivity, have been studied showing how they can be adjusted through their molar composition. Conductivity tends to ... -
Freezing Capture of Polymorphic Aggregates of Bolaamphiphilic L-Valine-Based Molecular Hydrogelators
WILEY-VCH Verlag GmbH & Co. KGaA (2014-05)Nanostructured xerogels have been prepared by the freeze-drying of hydrogels and aggregates formed by bolaamphiphilic l-valine derivatives after aging under different environmental conditions. A wide variety of shapes and ... -
From Complex Inorganic Oxides to Ag–Bi Nanoalloy: Synthesis by Femtosecond Laser Irradiation
American Chemical Society (2018-08-24)Bimetallic nanoalloys with a wide variety of structures and compositions have been fabricated through many diverse techniques. Generally, various steps and chemicals are involved in their fabrication. In this study, the ... -
From green to circular chemistry paved by biocatalysis
(2023)Since its origin, green chemistry has headed the best-guiding philosophy for reducing pollution and safeguarding the environment. The twelve Principles of Green Chemistry provide us with enough tools to design sustainable ...