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Magnetic Mesoporous Silica Nanorods Loaded with Ceria and Functionalized with Fluorophores for Multimodal Imaging

Título : Magnetic Mesoporous Silica Nanorods Loaded with Ceria and Functionalized with Fluorophores for Multimodal Imaging
Autores: Jan Grzelak, Jaume Gázquez, Alba Grayston, Mariana Teles, Fernando Herranz, Nerea Roher, Anna Rosell, Anna Roig*, and Martí Gich*
Citation and DOI:
ACS Appl. Nano Mater. 2022, XXXX, XXX, XXX-XXX
Publication Date:February 10, 2022
DOI: https://doi.org/10.1021/acsanm.1c03837
PlumX: Magnetic Mesoporous Silica Nanorods Loaded with Ceria and Functionalized with Fluorophores for Multimodal Imaging
Multifunctional magnetic nanocomposites based on mesoporous silica have a wide range of potential applications in catalysis, biomedicine, or sensing. Such particles combine responsiveness to external magnetic fields with other functionalities endowed by the agents loaded inside the pores or conjugated to the particle surface. Different applications might benefit from specific particle morphologies. In the case of biomedical applications, mesoporous silica nanospheres have been extensively studied while nanorods, with a more challenging preparation, have attracted much less attention despite the positive impact on the therapeutic performance shown by seminal studies.

Biomaterials

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A picture of the installation at the ALBA Synchrotron

The ALBA Synchrotron begins construction of a new beamline: 3Sbar

ICMAB Researcher Xavier Torrelles has collaborated in the design process of the new beamline installation.

ALBA Synchrotron, a 3rd generation synchrotron light facility that allows for the visualization of the atomic structure of matter as well as the study of its properties, will open its newest beamline, 3Sbar, by 2026:

"Each new beamline opens new windows in understanding the complexity of the world around us. With 3Sbar, ALBA aims to be at the fore-front of catalysis science, building a unique scientific instrument with strong capabilities for preserving our environment", says Caterina Biscari, director of the ALBA Synchrotron.

Press Release, Breaking News, timeline

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Laser processing of graphene and related materials for energy storage: State of the art and future prospects

Título : Laser processing of graphene and related materials for energy storage: State of the art and future prospects
Autores: Rajesh Kumar, Angel Pérez del Pino, Sumanta Sahoo, Rajesh Kumar Singh, Wai Kian Tan, Kamal K. Kar, Atsunori Matsuda, Ednan Joanni
Citation and DOI: Progress in Energy and Combustion Science, 2022, 100981
DOI: https://doi.org/10.1016/j.pecs.2021.100981
PlumX: Laser processing of graphene and related materials for energy storage: State of the art and future prospects
Laser-based methodologies for synthesis, reduction, modification and assembly of graphene-based materials are highly demanded for energy-related electrodes and devices for portable electronics. Laser technologies for graphene synthesis and modification exhibit several advantages when compared to alternative methods. They are fast, low-cost and energy saving, allowing selective heating and programmable processing, with controlled manipulation over the main experimental parameters.

Energy

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Welcome Francesca Merlina at ICMAB!

Nombre y apellidos: Francesca Merlina
Hello everyone! My name is Francesca and I am an italian master degree student from the university of Trieste. I am here to write my thesis in the field of cancer immunotherapy under the supervision of Dr. Judith Guasch. In my spare time I like to read, hike and travel. I am really looking forward to meeting you all!

Italy

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Welcome Alberto Lanfranco at ICMAB!

Nombre y apellidos: Alberto Lanfranco
I'm a Ph.D. student from University of Turin. I'm graduated in the field of organic chemistry and my Ph.D. project is based on the synthesis of novel boron-based antitumoral agents. I love to stay relaxed and to read, listen to music and play some videogames.

Italy

  • Hits: 949

Lattice-mediated bulk flexoelectricity from first principles

Título : Lattice-mediated bulk flexoelectricity from first principles
Autores: Miquel Royo,* and Massimiliano Stengel
Citation and DOI: Phys. Rev. B 105, 064101 – Published 3 February 2022
DOI:https://doi.org/10.1103/PhysRevB.105.064101
PlumX: Lattice-mediated bulk flexoelectricity from first principles
First-principles calculations of flexoelectricity, the electromechanical coupling whereby a strain gradient produces a macroscopic polarization, are challenging due to the inherent breakdown of crystal periodicity. An effective workaround to these difficulties was demonstrated in the recent past via a careful long-wavelength analysis of acoustic phonons. Following these guidelines, the authors develop here a practical formalism and a code implementation providing the lattice-mediated contributions to the bulk flexoelectric tensor. This work completes the first-principles theory and implementation of bulk flexoelectricity and makes it available for public use.

Oxides

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Welcome Lorenzo Pandolfi at ICMAB!

Nombre y apellidos: Lorenzo Pandolfi
Hi! My name is Lorenzo and I’m a visiting Ph.D. student from the University of Bologna. I will join the NANOPTO group for six months in order to investigate the influence of polymorphism in organic solar cells based on non-fullerene acceptors (NFAs). I’m very passionate about sports, technology and arts. I like sport climbing, hiking, snowboarding, cooking, playing the guitar and home recording. Hope to see you around!

Italy

  • Hits: 961

Welcome Giacomo Cotelli at ICMAB!

Nombre y apellidos: Giacomo Cotelli
Hi everyone! My name is Giacomo Cotelli, I am an Italian chemistry student spending at ICMAB part of my master's thesis period, doing some research about fluorescent organic nanoparticles in the NANOMOL research group and improving my Spanish. I like hiking, reading, and trying out foreign food. Nice to meet you all!

Italy

  • Hits: 933

Improved polarization and endurance in ferroelectric Hf0.5Zr0.5O2 films on SrTiO3(110)

Título : Improved polarization and endurance in ferroelectric Hf0.5Zr0.5O2 films on SrTiO3(110)
Autores: Tingfeng Song, Huan Tan, Saúl Estandía, Jaume Gàzquez, Martí Gich, Nico Dix, Ignasi Fina* and Florencio Sánchez*
Citation and DOI: Nanoscale, 2022,14, 2337-2343
DOI: https://doi.org/10.1039/D1NR06983G
PlumX: Improved polarization and endurance in ferroelectric Hf0.5Zr0.5O2 films on SrTiO3(110)
The metastable orthorhombic phase of Hf0.5Zr0.5O2 (HZO) can be stabilized in thin films on La0.67Sr0.33MnO3 (LSMO) buffered (001)-oriented SrTiO3 (STO) by intriguing epitaxy that results in (111)-HZO oriented growth and robust ferroelectric properties. Here, we show that the orthorhombic phase can also be epitaxially stabilized on LSMO/STO(110), presenting the same out-of-plane (111) orientation but a different distribution of the in-plane crystalline domains.

Oxides

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High-Throughput Screening of Blade-Coated Polymer:Polymer Solar Cells: Solvent Determines Achievable Performance

Título : High-Throughput Screening of Blade-Coated Polymer:Polymer Solar Cells: Solvent Determines Achievable Performance
Autores: Albert Harillo-Baños, Dr. Qunping Fan, Dr. Sergi Riera-Galindo, Prof. Ergang Wang, Prof. Olle Inganäs, Dr. Mariano Campoy-Quiles
Citation and DOI: ChemSusChem 2022, e202101888.
DOI: https://doi.org/10.1002/cssc.202101888
PlumX: High-Throughput Screening of Blade-Coated Polymer:Polymer Solar Cells: Solvent Determines Achievable Performance

High-throughput screening: Less than 25 mg of the donor and acceptor materials are used to make over 648 devices in a combinatorial screening method that investigates processing parameters for blade-coated polymer:polymer photovoltaics. Representing power conversion efficiency in the Hansen solubility space may be the key for easily selecting solvent systems that optimize performance.

Energy

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Welcome Yolanda Ronda López at ICMAB!

Nombre y apellidos: Yolanda Ronda López
Hello! I'm Yolanda Ronda, graduated in Biotechnology. I'm doing a MSc in Drug Research, Development and Control in UB and I'm going to do my TFM in NanomolTechSL. I like play voleyboll and swimming.

Spain

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1.3 V Inorganic Sequential Redox Chain with an All-Anionic Couple 1–/2– in a Single Framework

Título : 1.3 V Inorganic Sequential Redox Chain with an All-Anionic Couple 1–/2– in a Single Framework
Autores: Ana B. Buades, Clara Viñas, Xavier Fontrodona, and Francesc Teixidor*
Citation and DOI:
Inorg. Chem. 2021, 60, 21, 16168–16177
Publication Date:October 24, 2021
DOI: https://doi.org/10.1021/acs.inorgchem.1c01822
PlumX: 1.3 V Inorganic Sequential Redox Chain with an All-Anionic Couple 1–/2– in a Single Framework
The relatively low symmetry of [3,3′-Co(1,2-C2B9H11)2] ([1]), along with the high number of available substitution sites, 18 on the boron atoms and 4 on the carbon atoms, allows a fairly regioselective and stepwise chlorination of the platform and therefore a very controlled tuning of the electrochemical potential tuning. This is not so easily found in other systems, e.g., ferrocene. In this work, we show how a single platform with boron and carbon in the ligand, and only cobalt can produce a tuning of potentials in a stepwise manner in the 1.3 V range.

Biomaterials

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Large enhancement of ferroelectric polarization in Hf0.5Zr0.5O2 films by low plasma energy pulsed laser deposition

Título : Large enhancement of ferroelectric polarization in Hf0.5Zr0.5O2 films by low plasma energy pulsed laser deposition
Autores: Tingfeng Song, Raul Solanas, Mengdi Qian, Ignasi Fina* and Florencio Sánchez*
Citation and DOI: J. Mater. Chem. C, 2022,10, 1084-1089
DOI: https://doi.org/10.1039/D1TC05387F
PlumX: Large enhancement of ferroelectric polarization in Hf0.5Zr0.5O2 films by low plasma energy pulsed laser deposition

The ferroelectric phase of HfO2 is generally stabilized in polycrystalline films, which typically exhibit the highest polarization when deposited using low oxidizing conditions. In contrast, epitaxial films grown by pulsed laser deposition show low or suppressed polarization if a low oxygen pressure is used. Epitaxial films are essential to better understand physical properties, and obtaining films that have intrinsic polarization is of great importance. In order to advance towards this objective, we have carried out a systematic study of the epitaxial growth of Hf0.5Zr0.5O2 combining inert Ar gas with oxidizing O2 gas.

Oxides

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Welcome Arnau Ortiz Vallès at ICMAB!

Nombre y apellidos: Arnau Ortiz Vallès
Hi! My name is Arnau and I'm from Barcelona. I'm currently performing my master thesis at the Functional Surfaces and Interfaces group under supervision of Albert Verdaguer. See you around!

Spain

  • Hits: 923

Welcome Mauricio Echeverría Gallart at ICMAB!

Nombre y apellidos: Mauricio Echeverría Gallart
Hello! My name is Mauricio Echeverría, a materials engineer doing the MCs in Materials Science and Engineering at the UPC. I am going to spend a few months in the Nanoparticles & Nanocomposites group here at ICMAB working on Porous graphene-nanoparticle composites for sensing applications under the supervision of Pablo Guardia. Looking forward to meeting you soon!

Spain

  • Hits: 1136
A picture of Pedro Barusco during his defense.

Congratulations Dr. Pedro Barusco, new ICMAB Graduate

Date: 2022-02-11

Doctor Pedro Barusco, from the Superconducting Materials and Large Scale Nanostructures (SUMAN) Group (ICMAB-CSIC), defended his PhD thesis titled "Development of High Temperature Superconductors Coated Conductors for Resistive Fault Current Limiters with the Current Flow Diverter Architecture" on Friday 11 February 2022 in a hybrid session. Congrats!

PhD Congrats

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Dramatic Drop in Cell Resistance through Induced Dipoles and Bipolar Electrochemistry

Título : Dramatic Drop in Cell Resistance through Induced Dipoles and Bipolar Electrochemistry
Autores: L. Fuentes-Rodríguez, Ll. Abad, E. Pujades, P. Gómez-Romero, D. Tonti and N. Casañ-Pastor
Citation and DOI:

J. Electrochem. Soc. 169 016508
DOI: https://doi.org/10.1149/1945-7111/ac492d
https://iopscience.iop.org/article/10.1149/1945-7111/ac492d/meta

PlumX: Dramatic Drop in Cell Resistance through Induced Dipoles and Bipolar Electrochemistry
The use of slurries of conducting particles has been considered a way to extend the electrode area in some energy storage electrochemical cells. When suspensions of conducting particles are used in electrolytes a decreased impedance is observed, even for concentrations much lower than the theoretical percolation limits. Indeed, it is known that polarization occurs when a conducting material is immersed in an electrolyte in presence of electric fields, and bipolar electrochemistry processes may occur.

Biomaterials, Energy

  • Hits: 636
 Álvaro Luis Jiménez, CRAG PhD researcher, working with tomato plants at CRAG greenhouse | CRAG

A wall to stop bacterial wilt in tomato plants

Press Links:
 

ICMAB researchers Anna Laromaine and Sumithra Srinivasan collaborate in this study led by CRAG researchers to unveil the physico-chemical nature of the xylem barriers responsible for bacterial wilt resistance in tomato plants.

Websites News, Newspapers, Press Release, Top Science Results, timeline, Press Review

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Coexistence of structural and magnetic phases in van der Waals magnet CrI3

Título : Coexistence of structural and magnetic phases in van der Waals magnet CrI3
Autores: Jaume Meseguer-Sánchez, Catalin Popescu, José Luis García-Muñoz, Hubertus Luetkens, Grigol Taniashvili, Efrén Navarro-Moratalla, Zurab Guguchia & Elton J. G. Santos
Citation and DOI: Nat Commun 12, 6265 (2021).
DOI: https://doi.org/10.1038/s41467-021-26342-4
PlumX: Coexistence of structural and magnetic phases in van der Waals magnet CrI3
CrI3 has raised as an important system to the emergent field of two-dimensional van der Waals magnetic materials. However, it is still unclear why CrI3 which has a ferromagnetic rhombohedral structure in bulk, changed to anti-ferromagnetic monoclinic at thin layers. Here we show that this behaviour is due to the coexistence of both monoclinic and rhombohedral crystal phases followed by three magnetic transitions at TC1 = 61 K, TC2 = 50 K and TC3 = 25 K.

Oxides

  • Hits: 497

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