Gotzone Barandika

University of the Basque Country | UPV/EHU · Inorganic Chemistry

Materials from renewable carbon feedstock can limit our dependence on fossil carbon and facilitate the transition from linear carbon-intensive economies to sustainable, circular economies. Chitin nanofibrils (ChNFs) isolated from white mushrooms offer remarkable environmental benefits over conventional crustacean-derived nanochitin. Herein, ChNFs a...

Polymers derived from renewable carbon feedstock are destined to play a pivotal role in the transition to a sustainable circular economy, displacing conventional fossil‐carbon materials. Chitin (CT) and chitosan (CS) are well‐suited to develop multifunctional materials that are mechanically resilient and easy to process. Their abundance of hydroxyl...

Metal–organic frameworks and supramolecular metal–organic frameworks (SMOFs) exhibit great potential for a broad range of applications taking advantage of the high surface area and pore sizes and tunable chemistry. In particular, metalloporphyrin-based MOFs and SMOFs are becoming of great importance in many fields due to the bioessential functions...

Ferromagnetic [Ni 5 (H 2 TCPP) 2 O(H 2 O) 4 ]· n S exhibits selective adsorption towards cationic dyes in solution and gas separation calculations predict promising values for gas mixtures.

Metal-Organic Frameworks (MOFs) are porous coordination networks assembled through metal complexes with organic linkers. Due to their chemical versatility, these materials are being investigated for various applications including gas storage and separation, biomedicine and catalysis. The aim of this work is the encapsulation of the model β-alanine...

Ionothermal synthesis is a little used method for the preparation of coordination polymers. By this method, two cadmium compounds were synthesized, 1, with formula Cd3(ox)F2(Ina)2 (Ina = isonicotinate) and 2, Cd(NO3)2(4,4′-Bpy) (4,4′-Bpy = 4,4′-Bipyridine). The modification of the reaction conditions has allowed to obtain 2 as a pure phase. The str...

Heterogeneous catalysts are of great interest in many industrial processes for environmental reasons and, during recent years, a great effort has been devoted to obtain metal–organic frameworks (MOFs) with improved catalytic behaviour. Few supramolecular metal–organic frameworks (SMOFs) are stable under ambient conditions and those with anchored ca...

Heterogeneous catalysts are a great bet for green chemistry in many industrial processes and, in the past decade, promising results have been achieved in order to improve the catalytic activity of Metal Organic Frameworks (MOFs). Accordingly, porphyrins make possible to design new coordination polymers with better properties, taking into account th...

In this paper, we have completed the synthesis and characterization of the family of aluminium-alkali metal -ate derivatives [MAlMe4-x{2,6-(MeO)2C6H3O}x]n (x = 1, 2; M = Li, Na, K) by preparing the new heterometallic -ate compounds [MAlMe3{2,6-(MeO)2C6H3O}]2 (M = Na and K) through the reaction between [AlMe3]2 and the appropriate alkali metal arylo...

Nanotechnology is expected to contribute to the protection of the environment, but many uncertainties exist regarding the environmental and human implications of manufactured nanomaterials (MNMs). Contradictory results have been reported for their ecotoxicity to aquatic organisms, which constitute one of the most important pathways for their entran...

Metalloporphyrins exhibit outstanding chemical, physical and biological properties in dissolution, however, it is a challenge to synthesize them as stable solid frameworks. Long-time stability is crucial for future applications of these materials, and we have detected a slow, solid-state transformation of a 2D MnII-porphyrin at RT. The remarkable p...

Metal organic frameworks (MOFs) are crystalline materials based on connections between metal ions through organic ligands. The combination of polycarboxylate anions and dipyridyl ligands is an effective strategy for producing extended structures. In this sense, the combination of bpa with m-bdc [bpa = 1,2-bis(4-pyridyl)ethane, m-bdc = 1,3-benzenedi...

CuII-nanoballs have been determined to be among the best MOPs (Metal-Organic Polyhedra) reported so far for the adsorption of small molecules, with the highlighting advantage of the rapid kinetics, which focuses applicability to the removal of emergent pollutants.

In hip joint implants, in particular in the stems, wear-corrosion effects can accelerate the degradation of the biomaterial. The lack of osseointegration and the risk of contracting implant-associated infections may be other reasons for a premature failure of the implant. In this work, TiO2 coatings have been developed by means of Plasma Electrolyt...

In the last few years the release of multiwalled carbon nanotubes (MWCNTs) into the environment has raised serious concerns regarding their fate and potential impacts. Aquatic organisms constitute an important pathway for their entrance and transfer throughout the food webs, and the current demand for standardization of methodologies to analyze the...

Phase transformations in solid coordination frameworks (SCFs) are of interest for several applications, and this work reports on a crystal-to-crystal transformation found for a hydrogen bonded CuII-based solid coordination frameworks (SCF). Thus, combination of PDC and (py)2C(OH)2 ligands, where PDC is pyridine-2,5-dicarboxylate and (py)2C(OH)2 is...

Preparing students to be good problem-solvers, critical thinkers, and lifelong learners has become a critically important educational goal in this twenty-first century. Because student-centered environments are typically problem-based, open-ended, and complex, different forms of scaffolding are needed for students and teachers to succeed in such en...

Brussels-based CEN (the European Committee for Standardization) is the solely recognizedorganization for the planning drafting and adoption of European Standards in all major areas of business. Concretely, on July, 2013, was published the UNE-CEN/TS 16555-1:2013, the European Standard for Innovation Management. This technical specification provides...

Combination of polycarboxylate anions and dipyridyl ligands is an effective strategy to produce solid coordination frameworks (SCF) which are crystalline materials based on connections between metal ions through organic ligands. In this context, this work is focused on two novel CuII-based SCFs exhibiting PDC (2,5-pyridinedicarboxylate) and bpa (1,...

Synthetic metalloporphyrin complexes are often used as analogues of natural systems, and they can be used for the preparation of new Solid Coordination Frameworks (SCFs). In this work, a series of six metalloporphyrinic compounds constructed from different meso substituted metalloporphyrins (phenyl, carboxyphenyl and sulfonatophenyl) have been stru...

Compound 1 [Cu24(m-BDC)24(DMF)20(H2O)4]•24DMF•40H2O (m-BDC is 1,3-benzenedicarboxylate and DMF is N,N-dimethylformamide) has been synthesized and structurally characterized by X-ray diffraction. It consists of Cu24-clusters arranged in such a way that 12 dimers are connected through m-BDC ligands. The clusters exhibit an internal cavity where cryst...

Innovation projects allow the planning, implementation, and evaluation of new experiences devoted to the improvement of the learning process. In this sense, the University of the Basque Country (UPV / EHU) has developed the IKD concept attached to the teaching-learning process in a climate of confidence and dynamism through the promotion of educati...

There is currently a variety of applications for multiwalled carbon nanotubes (MWCNTs), but considerable concerns exist regarding their release into the environment. Their potential accumulation by aquatic organisms could lead to a transfer throughout food chains. Considering the divergences in experimental data published on ecotoxicity of carbon n...

A variety of activities can be carried out for the development of a subject, and in the case of " General and Inorganic Chemistry " in the grade of Pharmacy (University of the Basque Country, UPV/EHU) there are up to four different methodologies: traditional lecture, room, computer, and laboratory practice. In this sense, the teaching team of the a...

During the past years, a great effort has been devoted to the anchoring of catalysts into solid coordination networks in order to achieve heterogeneous catalysts. In this sense, an innovative approach consists on using the coordination-network synthons both as structural units and as catalysts. Regarding the latter, metalloporphyrins are suitable c...

Solid coordination frameworks (SCF) are crystalline materials based on connections between metal ions through organic ligands. In this sense, combination of polycarboxylate anions and dipyridyl ligands is an effective strategy to produce extended structures. In this context, this work is focused on two novel CuII-based SCFs exhibiting PDC (2,5-pyri...

Similar to the worldwide ISO, at the European level, Brussels-based CEN (the European Committee for Standardization) is the solely recognized organization for the planning drafting and adoption of European Standards in all major areas of business except electro-technology and telecommunications. Concretely, on July, 2013, was published the UNE-CEN/...

Ti6Al4V (grade 5) is the implant material of choice to be used in stems of hip joint implants due to its good mechanical properties, biocompatibility and its good corrosion resistance. However, it presents poor wear resistance. This effect with the exposure of biomaterial to the body fluids that induce corrosion damage lead to irreversible material...

Innovation, both as a field of study and as a practical discipline, has gained considerable traction over the past 15 years. In fact, as organizations become broader and more complex, the need for a systematic approach to new product, service or business development techniques strengthens accordingly. This idea (by Oana-Maria Pop, Senior Editor of...

A value chain is a chain of activities that an organization performs in order to deliver a valuable product or service for the market. The concept comes from business management and was first described and popularized by Michael Porter in his 1985 bestseller , Competitive Advantage: Creating and Sustaining Superior Performance: "The idea of the val...

A series of quinolinate nickel–tris(pyrazolyl)borate complexes [Ni(Tp*)(N,O-2,5,7-R1,R2,R3-8-hq)] {Tp* = hydrotris-(3,5-dimethylpyrazolyl)borate, 8-hq = 8-hydroxyquinoline} were synthesized and characterized by spectroscopic methods. Single-crystal X-ray studies indicate that these complexes exhibit a pentacoordinate arrangement with chelating quin...

The University of the Basque Country (UPV / EHU) has developed the IKD concept attached to the teaching-learning process and the curriculum development, one of its key points being the encouragement of the self-learning process. With this aim, the design of new tools promoting this process is crucial, in order to enhance the acquisition of both spe...

Institutional policies encourage cooperation between those involved in teaching, in a climate of confidence and dynamism through the promotion of educational material. Self-learning, in particular, is taking in information, processing it, and retaining it without the need of another individual to be teaching it. Simply stated, self-learning require...

The University of the Basque Country (UPV / EHU) has developed the IKD concept attached to the teaching-learning process and the curriculum development, one of its key points being the encouragement of the self-learning process. With this aim, the design of new tools promoting this process is crucial, in order to enhance the acquisition of both spe...

Compound ([FeTPPbipy](•))n (TPP = meso-tetraphenylporphyrin and bipy = 4,4'-bipyridine) is the first example of a Fe-TPP-bipy coordination network, and it consists of 1D polymers packed through face-to-face and edge-to-face π-π interactions. The compound has been investigated by means of X-ray diffraction, IR, Mössbauer, UV-visible, and EPR spectro...

The host-chemistry of four coordination networks has been studied by means of X-ray diffractometry (XRD), thermogravimetry (TG) and X-ray thermodiffractometry (TDX). The four compounds exhibit the general formula [Ni(PDC)((py)2C(OH)2)(ROH)]·xROH, where PDC is pyridine-2,5-dicarboxylate(2−), ((py)2C(OH)2) is the gem-diol of di-2-pyridyl ketone ((py)...

Two new CoP–bipy compounds have been synthesised and characterised, where P is TPP for compound 1 (TPP = meso-tetraphenylporphyrin) and TPPS for compound 2 (TPPS = meso-tetraphenylporphine-tetrasulfonic acid tetrasodium salt), and bipy is 4,4′-bipyridine. Compound 1 consists of 1D polymers packed in a network where isolated porphyrin units are immo...

The Academic Ranking of World Universities (ARWU) uses several objective indicators to rank world universities, including the number of alumni and staff winning Nobel Prizes and Fields Medals, number of highly cited researchers selected by Thomson Scientific, number of articles published in journals of Nature and Science, and number of articles ind...

The university plays a critical role in the transformation of society, and therefore excellence in teaching, research, and transfer of knowledge are required. In this sense, the University of the Basque Country (UPV / EHU) has developed the IKD concept attached to the teaching-learning process. This concept also connects with institutional policies...

Ti6Al4V alloy is the most commonly employed implant material for orthopedic replacements due to its good mechanical properties close to those of bones, biocompatibility and its good corrosion resistance in biological media. Nevertheless, it does not exhibit good wear resistance, showing friction and wear even with soft tissues. This latter feature...

The establishment of three cycles for higher education in the Bologna Process is the key element of this overarching framework. These cycles can be best understood by reference to internationally acceptable descriptors which have been developed jointly by stakeholders across Europe – the socalled “Dublin descriptors”. Therefore, these third-cycle d...

The combination of non-centrosymmetric ligands and dipyridyl spacers produces a MOF that potentially can be porous with formula [Ni2(bipy)1.5(PDC)2(H2O)2]·3.5H2O (bipy = 4,4′-bipyridine and PDC = pyridine-2,5-dicarboxylate). Dehydration of this compound results in a new MOF in which the formation of additional bonds between the carboxylate groups o...