A5053625660- Food Chemistry and Fat Analysis
- Physics of Superconductivity and Magnetism
- X-ray Diffraction in Crystallography
- Organic Electronics and Photovoltaics
- Iron-based superconductors research
- Proteins in Food Systems
- Perovskite Materials and Applications
- Crystallization and Solubility Studies
- Rare-earth and actinide compounds
- Advanced Condensed Matter Physics
- Conducting polymers and applications
- Magnetic and transport properties of perovskites and related materials
- Thin-Film Transistor Technologies
- Superconductivity in MgB2 and Alloys
- Graphene research and applications
- Enzyme Structure and Function
- Meat and Animal Product Quality
- Advanced X-ray Imaging Techniques
- Solid-state spectroscopy and crystallography
- Nanowire Synthesis and Applications
- Luminescence and Fluorescent Materials
- MXene and MAX Phase Materials
- X-ray Spectroscopy and Fluorescence Analysis
- Organometallic Compounds Synthesis and Characterization
- 2D Materials and Applications
Institute of Crystallography
2016-2025
AREA Science Park
2015-2025
Elettra-Sincrotrone Trieste S.C.p.A.
2013-2024
National Academies of Sciences, Engineering, and Medicine
2023
National Research Council
2016-2023
Graz University of Technology
2022
Medical University of Graz
2022
Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
2019-2020
Vitenparken
2019
Consorzio Roma Ricerche
2015-2018
Advanced synchrotron radiation focusing down to a size of 300 nm has been used visualize nanoscale phase separation in the K${}_{0.8}$Fe${}_{1.6}$Se${}_{2}$ superconducting system using scanning nanofocus single-crystal x-ray diffraction. The results show an intrinsic single crystals at $T$ 520 K, revealing coexistence (i) magnetic characterized by expanded lattice with superstructures due Fe vacancy ordering and (ii) nonmagnetic in-plane compressed lattice. spatial distribution two phases K...
The complex electronic properties of ${\mathrm{ZrTe}}_{5}$ have recently stimulated in-depth investigations that assigned this material to either a topological insulator or 3D Dirac semimetal phase. Here we report comprehensive experimental and theoretical study both structural ${\mathrm{ZrTe}}_{5}$, revealing the bulk is strong (STI). By means angle-resolved photoelectron spectroscopy, identify at top valence band surface state. dispersion these bands well captured by ab initio calculations...
Temperature dependent single-crystal x-ray diffraction (XRD) in transmission mode probing the bulk of newly discovered K0.8Fe1.6Se2 superconductor (Tc = 31.8 K) using synchrotron radiation is reported. A clear evidence intrinsic phase separation at 520 K between two competing phases, (i) a first majority magnetic with ThCr2Si2-type tetragonal lattice modulated by iron vacancy ordering and (ii) minority non-magnetic having an in-plane compressed volume weak superstructure, The XRD peaks due...
This research studied the possible relation between oil properties and structure physical of saturated monoglyceride (MG)‐based organogels. To this aim different oils (castor, cod liver, corn, extra virgin olive, flax‐seed, peanut sunflower oil, mixture medium chain triacylglycerols (MCT)) were used to prepare organogels by adding 10% w/w monoglycerides. The fatty acid composition, viscosity, dielectric measured. Then, characterized for crystallization induction time, properties, firmness,...
Flexible perovskite solar cells are lightweight, bendable, and applicable to curved surfaces. Polyethylene terephthalate (PET) has become the substrate of choice compared other plastic substrates like polyethylene naphthalate. PET is not only stable but also much cheaper manufacture, an important factor for photovoltaics (PV). Herein, highly efficient devices on demonstrated using a dual low‐temperature (≤100 °C) approach, first by anion mixing (replacing I with Br) lead‐containing...
High-Tc superconductivity in FeAs-based (pnictide) multilayers, evading temperature decoherence effects a quantum condensate, is assigned to Feshbach resonance (also called shape resonance) the exchange-like interband pairing. The switched on by tuning chemical potential at an electronic topological transition (ETT) near band edge, where Fermi surface topology of one subbands changes from one-dimensional (1D) two-dimensional (2D) topology. We show that realized changing (i) misfit strain...
Abstract All‐organic nanostructured host–guest materials (see picture) show enhanced, tunable fluorescence due to a high concentration of dyes with controlled spatial and geometrical organization that allows resonant energy transfer. Homogeneous films deoxycholic acid host–guests, provide coatings convert near‐UV light into blue an efficiency higher than the standard polymeric blends. magnified image systems, based on inserted in nanochannels perhydrotriphenylene (PHTP) (DCA), enhanced...
Graded bilayer solar cells have proven to be at least as efficient the bulk heterojunctions when it comes Poly(3-hexylthiophene) (P3HT) - [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) donor–acceptor system. However, control of vertical concentration gradient using simple techniques has never been reported. We demonstrate that rubbing P3HT layer prior PCBM deposition induces major morphological changes in active layer. Using newly introduced energy-dispersive X-ray spectroscopy element...
Here, the interaction mechanism of 1-aminoanthraquinone (AQ) on Ti3C2Tx MXene by noncovalent (AQ@Ti3C2Tx) and covalent (AQ-Ti3C2Tx) functionalization is reported. Spectroscopic, X-ray, scattering techniques confirmed AQ without its catalytic decomposition, resulting in intercalation with MXene. Diazonium reaction was further used to covalently functionalize molecules Optimized AQ-Ti3C2Tx freestanding electrodes ∼44 μm thickness delivered capacitance ∼300 F/g improved rate performance...
Despite containing a higher proportion of unsaturated fatty acids than traditional solid and semi-solid fats, the calorie-dense nature oleogels presents challenge when incorporating them into foods. The next generation should feature customizable lipid digestion profile while having minimal impact on other properties food products. To achieve this goal, we developed first-of-its-kind "encapsulated oleogel-in-oleogel" system with tailorable digestibility. obtain such system, Pickering...
The capability of propolis wax, beeswax, and their mixture to gel pomegranate seed oil (PSO) was studied. Samples were prepared increasing the concentration waxes in from 5 15% w/w. After PSO chemical characterization, thermal, structural properties wax‐based organogels Both wax beeswax formed organogel thanks presence crystal networks made needle‐like β′‐form crystals. Based on FTIR spectroscopy, mainly van der Waals interactions systems. Propolis displayed lower firmness G′ G″ modulus...
Here, using a combined theoretical and experimental approach, we have investigated the interaction mechanism of titanium carbide MXene with variety organic molecules whose end groups are O, S, N, tertiary amines. All intercalated between layers; however, layer expansion followed group molecules. A broad range optical spectroscopies confirmed that nature interactions/reactions is also group-dependent involve complex interactions such as electrostatic interactions, polymerization, strong...
We report the temperature dependent x-ray powder diffraction of quaternary compound NdOFeAs (also called NdFeAsO) in range between 300 and 95 K. have detected structural phase transition from tetragonal phase, with P4/nmm space group, to orthorhombic or monoclinic Cmma P 112/n (or 2/c) over a broad 150 120 K, centered at T0∼137 Therefore this is strongly reduced, by about ∼30 increasing internal chemical pressure going LaOFeAs NdOFeAs. In contrast, superconducting critical increases 27 51 K...
Abstract The lipid fraction of roasted coffee is an interesting ingredient that could be used in a large number food formulations. Coffee oil has peculiar flavouring as well nutraceutical characteristics. feasibility the use greatly depends not only on its chemical characteristics but also physical properties. crystallisation and melting properties extracted from Arabica powder were determined by using synchrotron X‐ray diffraction coupled with differential scanning calorimetry. fatty acid...
Oxygen chain fragments are known to appear at the insulator superconductor transition (SIT) in YBa2Cu3O6+y. However self organization and size distribution of oxygen is not known. Here we contribute fill this gap, using scanning micro X ray diffraction which a novel imaging method based on advances focusing synchrotron radiation beam. This approach allows us probe both real-space k-space high-quality YBa2Cu3O6.33 single crystals with Tc=7K. We report compelling evidence for nanoscale striped...
Abstract Crystallization and melting properties of triacylglycerols in extra virgin olive oil were studied by using synchrotron X‐ray diffraction (XRD) differential scanning calorimetry (DSC). The phase transitions monitored cooling heating the samples at 2°C/min from 60 to −60°C vice versa. Upon cooling, a first DSC endothermic peak was recorded −9.6°C followed one −33.5°C. These thermal events associated formation two different structures: triple‐chain length (3L) having c parameter about...
Abstract Oleogels are lipid-based soft materials composed of large fractions oil (> 85%) developed as saturated and hydrogenated fat substitutes to reduce cardiovascular diseases caused by obesity. Promising oleogels unstable during storage, improve their stability careful control the crystalline network is necessary. However, this unattainable with state-of-the-art technologies. We employ ultrasonic standing wave (USSW) fields modify oleogel structure. During crystallization, growing...