Berta Domènech

Berta Domènech
Osram Opto Semiconductors

PhD Chemistry

About

37
Publications
15,964
Reads
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304
Citations
Additional affiliations
November 2016 - December 2021
Technische Universität Hamburg
Position
  • PostDoc Position
August 2015 - October 2016
Instituto de Salud Global de Barcelona
Position
  • PostDoc Position
May 2014 - August 2015
Materials Science Institute of Barcelona
Position
  • PostDoc Position
Education
October 2011 - May 2014
Autonomous University of Barcelona
Field of study
  • Chemistry
September 2010 - September 2011
Autonomous University of Barcelona
Field of study
  • Chemistry

Publications

Publications (37)
Chapter
Full-text available
Ion exchange materials find numerous large-scale industrial applications in various fields, such as water treatment processes, catalysis and many others. The efficiency of the use of ion exchangers in some instances can be substantially improved by tailored modification of commercially available ion exchange polymeric materials with, for example,...
Article
Full-text available
Nafion has been frequently used for the synthesis of nanoparticles by taking advantage of its so-called cluster-network structure. Unexpectedly, the synthesis of AgNPs inside Nafion 117 was found to produce NPs organization, resulting in a regular pattern that could reveal the real morphology of the polymer.
Article
Full-text available
Supercrystalline nanocomposite materials with micromechanical properties approaching those of nacre or similar structural biomaterials can be produced by self-assembly of organically modified nanoparticles, and further strengthened by crosslinking. The strengthening of these nanocomposites is controlled via thermal treatment, which promotes the for...
Article
Full-text available
In order to translate the exceptional properties of colloidal nanoparticles to macroscale geometries, assembly techniques must bridge a 10⁶‐fold range of length. Moreover, for successfully attaining a final mechanically robust nanocomposite macroscale material, some of the intrinsic nanoparticles’ properties have to be maintained while minimizing t...
Article
Nanocrystal assembly into ordered structures provides mesostructural functional materials with a precise control that starts at the atomic scale. However, the lack of understanding on the self-assembly itself plus the poor structural integrity of the resulting supercrystalline materials still limits their application into engineered materials and d...
Article
Full-text available
Supercrystalline nanocomposites (SCNCs) are a new category of nanostructured materials, with organically functionalized nanoparticles assembled into periodic structures, reminiscent of atomic crystals. Thanks to this nanoarchitecture, SCNCs show great promise for functional applications, and understanding and controlling their mechanical properties...
Article
Supercrystalline nanocomposites are a new class of hybrid and nanostructured materials that can reach exceptional mechanical strength and can be fabricated at low temperatures. Hierarchically arranged, they bridge the gap from the nano- to the macro-scale. Even though their mechanical properties are starting to be characterized, their constitutive...
Article
Full-text available
With the ever-expanding functional applications of supercrystalline nanocomposites (a relatively new category of materials consisting of organically functionalized nanoparticles arranged into periodic structures), it becomes necessary to ensure their structural stability and understand their deformation and failure mechanisms. Inducing the cross-li...
Article
Full-text available
Supercrystalline nanocomposites are nanoarchitected materials with a growing range of applications but unexplored in their structural behavior. They typically consist of organically functionalized inorganic nanoparticles arranged into periodic structures analogous to crystalline lattices, including superlattice imperfections induced by processing o...
Cover Page
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https://pubs.acs.org/pb-assets/images/_journalCovers/jpcbfk/jpcbfk_v124i049-4.jpg?0.429477862190049 The effect of different physicochemical parameters during the emulsion-templated self-assembly of nanoparticles to synthesize targeted supraparticles is explored. The obtained supraparticle features are rationalized based on the properties of the em...
Article
Full-text available
Controlling the nanoscale interactions of colloidal building blocks is a key step for the transition from single nanoparticles to tailor-made, architected morphologies and their further integration into functional materials. Solvent evaporation-induced self-assembly within emulsion droplets emerges as a fast, versatile, and low-cost approach to obt...
Article
Full-text available
Multiscale ceramic-organic supercrystalline nanocomposites with two levels of hierarchy have been developed via self-assembly with tailored content of the organic phase. These nanocomposites consist of organically functionalized ceramic nanoparticles forming supercrystalline micron-sized grains, which are in turn embedded in an organic-rich matrix....
Cover Page
Full-text available
3D printing is used to self‐assemble surface‐functionalized nanoparticles into supercrystalline macrostructures. The obtained columns feature high strength, favorably comparing to hierarchical composite materials, known for their exceptional mechanical properties. Further details can be found in the article, number 2000352, by A. John Hart, Gerold...
Article
Full-text available
A key challenge in the development of inorganic-organic nanocomposites is the mechanical behavior identification of the organic phase. For supercrystalline materials, in which the organic phase ranges down to sub-nm areas, the identification of the organic materials' mechanical properties is however experimentally inaccessible. The supercrystalline...
Chapter
Many biomaterials, such as nacre or bone, exhibit simultaneously high toughness and strength, owing to their hierarchical supercrystalline nanocomposite structure. Key to these properties is the structural organisation of multiple phases across multiple length scales. However, this structure requires fabrication through processes of self-assembly a...
Article
Full-text available
Nanostructured iron-oxide based materials with tailored mechanical and magnetic behavior are produced in bulk form. By applying ultra-fast heating routines via spark plasma sintering (SPS) to supercrystalline pellets, materials with an enhanced combination of elastic modulus, hardness and saturation magnetization are achieved. Supercrystallinity –...
Article
Full-text available
Bulk poly-supercrystalline ceramic-organic nanocomposites were produced and characterized with a nanoindentation-based study. These nanocomposites were processed using two different routines, to compare their properties with and without crosslinking the organic ligands interfacing the ceramic nanoparticles. Together with the expected material stren...
Article
Full-text available
Biomaterials often display outstanding combinations of mechanical properties thanks to their hierarchical structuring, which occurs through a dynamically and biologically controlled growth and self-assembly of their main constituents, typically mineral and protein. However, it is still challenging to obtain this ordered multiscale structural organi...
Article
Full-text available
The development of reusable dual-purpose nanocomposite foams for catalytic and bactericidal water treatment is reported. Small non-aggregated silver nanoparticles were made by Intermatrix Synthesis inside a polyurethane foam, which was chosen as a suitable polymeric matrix due to its high chemical and mechanical stability and industrial applicabili...
Conference Paper
The aim of this work is the synthesis of polymer-stabilized Pd nanoparticles inside a functionalized polymeric porous membrane and to test them in metal-catalyzed organic reactions. A polymeric membrane support (Polyethersulfone) was functionalized with an ionogen polymer capable of retaining metallic nanoparticles (MNP) or MNP precursors using a U...
Article
A new route for the synthesis of a monolithic porous hybrid organic-inorganic material composed of silica and an epoxy resin is reported. This ormosil material is prepared by supercritical drying of a gel obtained by a one-pot procedure and using ethanol as the only solvent. The microscopic analysis reveals that the material presents an open networ...
Article
The particular chemical structure of Nafion with nanostructured and segregated hydrophilic and hydrophobic domains enables its use as a model structure for the manufacture of polymer-metal nanocomposites. Among such nanocomposites, samples of Nafion-117 containing Ag-NPs of ca. 10 nm prepared by Intermatrix Synthesis exhibited a particular distribu...
Chapter
Nafion is the first and the most well-known and commonly used ionomer membrane, applied nowadays in a broad variety of applications. This wide suitableness comes up in last instance from its chemical structure: a hydrophobic polytetrafluoroethylene backbone containing regularly spaced long perfluorovinyl ether pendant side chains ended by a sulfoni...
Chapter
Full-text available
The antibacterial effect of silver has been used in a variety of commercially available products and medical devices for many years, either in its metallic or salt form. Nowadays, due to the knowledge acquired within the last decade in the field of Nanoscience and Nanotechnology, the use of silver nanoparticles (AgNPs) for medical and sanitary purp...
Chapter
Since the early 21th century, Catalysis has played a central role in chemistry and, with the recent rise of nanotechnology, the catalytic processes have made a giant leap forward, mainly due to the use of nanoparticles. Membranes loaded with catalytically active metal nanoparticles represent a bright example of properties combination as the related...
Article
Full-text available
This work reports the results obtained by the development of two types of nanocomposite membranes containing metal nanoparticles prepared by applying the Intermatrix Synthesis technique for the synthesis of silver nanoparticles in the ion-exchange matrices of sulfonated polyethersulfone-Cardo and Nafion membranes. The stability (in terms of silver...
Article
Full-text available
In this paper, we report the intermatrix synthesis of Ag nanoparticles in different polymeric matrices such as polyurethane foams and polyacrylonitrile or polyamide fibers. To apply this technique, the polymer must bear functional groups able to bind and retain the nanoparticle ion precursors while ions should diffuse through the matrix. Taking int...
Article
a b s t r a c t A new polymer–metal nanocomposite containing catalytic metal nanoparticles and useful for the prepa-ration of catalytic membranes was developed. Pd 0 nanoparticles were grown by intermatrix synthesis methodology on polymeric membranes made of either sulfonated and non sulfonated polyethersulphone with Cardo group or Nafion. The synt...
Article
Full-text available
Metal nanoparticles are known as highly effective catalysts although their immobilization on solid supports is frequently required to prevent aggregation and to facilitate the catalyst application, recovery, and reuse. This paper reports the intermatrix synthesis of Pd0 nanoparticles in sulfonated polyethersulfone with Cardo group membranes and the...

Questions

Question (1)
Question
I'm writing my thesis and in order to explain the different polymers used, I would like to group them by "types" or "classes" (with similar chemical structure of the elemental unit and properties).
The polymers I'm talking about are:
Polysulfone (PSU), Polyphenylsulfone (PPSU), Polyethersulfone (PES) and Polyetehersulfone with Cardo group (PES-C). (See attached file)
Although I've found that Blanco et.al. and Yamagishi et.al. consider these polymers to belong to the same class, they differ in the name given to the "family".
So, I'm not really sure if:
(1) it is correct to group them
and, in case it is,
(2) which would be the correct name of the "family": poly(arylsulfones), polysulfones... ?

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Projects

Projects (3)
Project
Biomimetic bottom-up fabrication of ceramic-organic composites. Start from ceramic nanoparticles and obtain multiple hierarchical levels with simple processing steps. Aim at achieving unique combinations of strength and toughness, with an open door to multifunctionality. Work conducted in the context of the SFB 986 (Area A6): https://www.tuhh.de/alt/sfb986/home.html