J. L. Vilas

J. L. Vilas
Universidad del País Vasco / Euskal Herriko Unibertsitatea | UPV/EHU · Physical Chemistry

Doctor of Philosophy

About

260
Publications
37,669
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
4,315
Citations
Additional affiliations
June 2015 - December 2020
Universidad del País Vasco / Euskal Herriko Unibertsitatea
Position
  • Professor
January 1998 - present
Universidad del País Vasco / Euskal Herriko Unibertsitatea
Position
  • Lecturer

Publications

Publications (260)
Article
Full-text available
The well-known compound tetrakis(tert-butylammonium)-cyclo-tetrametavanadate (V), [(CH3)3CNH3]4[V4O12] (1h_RT), which crystallizes in the tetragonal I4/m space group, undergoes an irreversible solid state transformation upon heating, constituting one of the few examples in which the initial and the final stages are structurally characterized by sc-...
Article
Sheet molding compounds (SMCs) are interesting materials for the hybrid and electric vehicle (HEV) industry due to their high stiffness‐weight ratio, ease of processing, and competitive costs. Nevertheless, HEV industry demands advanced requirements such as enhanced vibration damping capabilities and thermal fatigue resistance. In this regard, the...
Article
Today, Ti6Al4V alloy is the most used and manufactured metallic implantable biomaterial in biomedical industry. However, in recent years it has demonstrated that Ti6Al4V based biomaterials could induce harmful diseases to human health in long-term implantations. Thus, biomedical community makes great efforts in order to improve the biocompatibility...
Article
Full-text available
In situ-forming, biodegradable, and self-healing hydrogels, which maintain their integrity after damage, owing to dynamic interactions, are essential biomaterials for bioapplications, such as tissue engineering and drug delivery. This work aims to develop in situ, biodegradable and self-healable hydrogels based on dynamic covalent bonds between N-s...
Article
Biocompatible and biodegradable hydrogels with biomimetic properties, such as self-repairing, are increasingly interesting for biomedical applications, particularly when they can be printed or in situ formed to mimic extracellular matrix or as personalized implantable devices in tissue regeneration or drug delivery. Photocrosslinkable hydrogels bas...
Article
Soft materials are attracting much attention for the development of biostructures able to mimic the movement of natural systems by remote actuation. Multi-sensitive hydrogels are among the best materials for obtaining dynamic and biocompatible soft structures for soft actuators and related biomedical devices. Nevertheless, bioinks based on naturall...
Article
Great efforts have been performed on the production of advanced biomaterials with the combination of self-healing and wound healing properties in implant/tissue engineering biomedical area. Inspired by this idea, chitosan (CHI) based hydrogels can be used to treat a less investigated class of harmful chronic wounds: ulcers or pressure ulcers. Thus,...
Article
Mobile phones have been used in combination with point of care (PoC) devices for over a decade now. However, their use seems restricted to the detection of sensing events using the video and camera functions. In contrast, the complementary ability to use mobile phones to power such PoC devices has been largely unexplored. This work demonstrates the...
Article
Full-text available
Hyaluronic acid (HA) injectable biomaterials are currently applied in numerous biomedical areas, beyond their use as dermal fillers. However, bacterial infections and painful inflammations are associated with healthcare complications that can appear after injection, restricting their applicability. Fortunately, HA injectable hydrogels can also serv...
Article
Polymer scaffolds are playing an increasing role in tissue engineering (TE), although there is still a need to improve their biomimicry of cellular microenvironments, by having smart scaffolds with an active response, which can improve tissue regeneration. This work reports on the novel combination of poly(lactic-co-glycolide) (PLGA) with the ionic...
Article
Screen printed graphite electrodes are widely used in electroanalysis, and increasingly in electrochemiluminescence (ECL) applications. However, their response is very dependent on graphite paste composition and electrode fabrication processes. This work studies the ECL of the tris(2,2’-bipyridyl)ruthenium (II) / tripropylamine (Ru(bpy)3²⁺/TPrA) sy...
Article
The combination of electroactive polymers and ionic liquids (ILs) has been gaining much attention for tissue engineering. Thus, this work reports on the development of oriented electrospun fibers and films based on poly(vinylidene fluoride) (PVDF) and polyhydroxybutyrate-co-hydroxyvalerate (PHBV) blended with the IL choline acetate ([Chol][Ac]). Th...
Article
Full-text available
Three-dimensional (3D) printing represents a suitable technology for the development of biomimetic scaffolds for biomedical and tissue engineering applications. However, hydrogel-based inks’ printability remains a challenge due to their restricted print accuracy, mechanical properties, swelling or even cytotoxicity. Chitosan is a natural-derived po...
Article
Computational models may help to reduce research cost by predicting properties of alternative blends. Nowadays, most efforts focus on prediction of a few properties for sets of gasoline samples. However, there are no reports of models able for classification of gasoline samples with multiple output properties measured in real life refinery plants....
Article
Mar and scratch resistance are a major concern for automotive and other industrial sectors from causing inconvenient aesthetic changes on clear coats. Then, a series of two-component solvent-borne polyurethane coatings were formulated with branched polycaprolactone (PCL) oligomers. The effect of the partial substitution of acrylic polyols by tri- a...
Article
This review highlights the most important advances in the development and manufacture of advanced hybrid polymer-inorganic layered anticorrosion coatings for marine applications. These newly hybrid anticorrosion systems are gaining importance with the premise to improve the efficiency of the widely employed pure organic coatings, while widening the...
Article
Chitosan (CHI) based hydrogels promote wound healing and relieve inflammations and chronic infections. However, in hardly healable ulcers with excessively painful inflammations, anti-inflammatory activity of hydrogels can be enhanced by the sustained release of non-steroidal anti-inflammatory drugs or combining them with antibiotics. Thus, CHI was...
Article
Full-text available
Mismanagement, pollution and excessive use have depleted the world’s water resources, producing a shortage that in some territories is extreme. In this context, the need for potable water prompts the development of new and more efficient wastewater treatment systems to overcome shortages by recovering and reusing contaminated water. Among the water...
Article
Electrospun membranes play an increasing role in tissue regeneration base on their suitable morphological features. The implementation of active response, such as magnetically responsiveness or piezo-ionic features can further improve tissue regeneration by better resembling varying microenvironment during cell culture. In this context, this work r...
Article
Full-text available
Titanium (Ti) and its alloys have been demonstrated over the last decades to play an important role as inert materials in the field of orthopedic and dental implants. Nevertheless, with the widespread use of Ti, implant-associated rejection issues have arisen. To overcome these problems, antibacterial properties, fast and adequate osseointegration...
Article
Naturally derived polymer based on iota carrageenan and different ammonium and imidazolium based ionic liquids (ILs) are used for the development of environmentally friendly soft actuators. The influence of IL...
Article
Natural polymers are a promising alternative for reducing the environmental impact of batteries. For this reason, it is still necessary to study their behavior and implement its use in these devices, especially in separator membranes. This work reports on new separator membranes based on silk fibroin (SF) and silk sericin (SS) prepared by salt leac...
Article
Nanocomposite membranes (NCMs) of poly(vinylidene fluoride‐hexafluoropropylene), PVDF‐HFP, with different yttrium carbonate and magnetite loadings, are prepared, and their dual adsorption capacity over neutral arsenite and anionic arsenate species is evaluated. The nanoparticles (NPs) and the corresponding NCMs are fully characterized in morphology...
Article
Commercial screen-printed carbon electrodes have been treated with a CO2 laser energy of 12.8 mJ cm⁻² in air. This thermal treatment resulted in an increase in the crystallinity of the graphite and an enhancement in electron transfer rates, determined by Raman spectroscopy and cyclic voltammetry, respectively. Laser treatment also facilitated the i...
Article
Multifunctional printable biomaterials are at the base of advanced biomedical applications. Chitosan (CHI) and hyaluronic acid (HA) allow the development of polycomplex hydrogels with tailorable properties, including self-healing and controlled drug release. This work correlates and optimizes the mucoadhesive, swelling, biodegradation, mechanical a...
Article
Tackiness is an important parameter to take into account in order to obtain new materials with the desired properties for textile applications. Among these new materials, shape memory polymers (SMPs) are earning high interest due to the immense possibilities to apply them in different technological applications. Moreover, in order to expand the app...
Article
This work reports on the evaluation of the thermal degradation of poly(vinylidene fluoride) (PVDF) and PVDF co-polymer (PVDF-TrFE, PVDF-HFP and PVDF-CTFE) composite films with different imidazolium ionic liquids (ILs). The influence of the IL type, including cation and anion type, cation chain length and content up to 40 wt% were evaluated. Indepen...
Article
In order to advance towards more sustainable electronics generation, natural polymers with tailored dielectric response are essential. In this search, the combination of bio-based materials with active fillers in composite form, suppose one of the most viable alternatives. To achieve it, this work has explored the ability to control dielectric resp...
Article
Full-text available
N -Methyl-2-pyrrolidone is a toxic dipolar aprotic solvent widely used in the synthesis of polyurethane dispersions (PUD).
Article
Poly(N‐vinylcarbazole), two dihalogenated derivatives, and nanocellulose/poly(N‐vinylcarbazole) nanocomposite thin films have been fabricated with micrometric pore topography. This patterned structure has been developed by using breath figure method, which is an easy and cost‐effective method to obtain honeycomb‐like arrays. In addition, the effect...
Article
Bacterial contamination in implanted biomedical devices is a critical daily concern. The most used material for permanent implant in biomedical field is Ti6Al4V alloy due to its beneficial mechanical properties and high biocompatibility. Accordingly, in this work different polymeric antibacterial coatings poly(N-vinyl pyrrolidone) (PVP), hyaluronic...
Article
Full-text available
In this research a chemical modification of kraft lignin was carried out using a basic nucleophilic substitution reaction (NSA) in order to functionalize it as a novel crosslinking agent for the synthesis of active hydrogels. The chemical modification success of the synthesized crosslinker was demonstrated by using several techniques such as volume...
Article
Hyaluronic acid (HA) solutions were crosslinked with divinyl sulfone (DVS) and subsequently loaded with antibiotic molecules to obtain biocompatible and antibacterial injectable hydrogels. The crosslinking degree of the hydrogels was modulated by varying the reaction time and the HA:DVS weight ratio. Synthesized HA-DVS hydrogels were characterized...
Article
Magnetic materials are among the most commonly required for a wide variety of applications. Further, their fabrication and implementation by means of additive manufacturing technologies are also getting increasing attention. In this context, photocurable magnetic materials based on polyurethane acrylated (PUA) polymer and different magnetic particl...
Article
Full-text available
Ultrasonic cleaning is a developed and widespread technology used in the cleaning industry. The key to its success over other cleaning methods lies in its capacity to penetrate seemingly inaccessible, hard-to-reach corners, cleaning them successfully. However, its major drawback is the need to immerse the product into a tank, making it impossible t...
Article
Full-text available
Hydrogels present a great number of advantages, such as their swelling capacity or their capability to mimic tissues, which make them very interesting biomaterials. However, one of their main disadvantages is their lack of good mechanical properties, which could limit some of their applications. Several strategies have been carried out to develop h...
Article
Full-text available
A new approach of Fiber Enhanced Raman Spectroscopy (FERS) is described within this article based on the use of Hydrogel-Core microstructured Polymer Optical Fibers (HyC-mPOF). The incorporation of the hydrogel only on the core of the Hollow-Core microstructured Polymer Optical Fiber (HC-mPOF) enables to perform FERS measurements in a functionalize...
Article
In a context where environmentally friendly materials development is becoming essential, cellulose is achieving a great importance. Cellulose nanocrystal (CNC) hierarchical and nanostructured porous network is a versatile nanopar-ticle support to fabricate nanocomposites for different solutions. In this work, CNC-based aerogels loaded with copper a...
Article
Photocurable thermochromic and humidity responsive materials based on polyurethane acrylated (PUA) and bis(1-butyl-3-methylimidazolium) tetrachloronickelate ([Bmim]2[NiCl4]) ionic liquid (IL) have been prepared with varying IL content up to 40 wt.% within the polymer matrix. The influence of IL content on the photopolymerization process, morphology...
Article
The increased demand of electronic devices promotes the development of advanced and more efficient energy storage devices, such as batteries. Lithium-ion batteries (LIBs) are the most studied battery systems due to their high performance. Among the different battery components, the separator allows the control of lithium ion diffusion between the e...
Chapter
Stimulus-sensitive hydrogels have become suitable soft and multifunctional materials for biomedical applications such as, tissue engineering, soft robotic actuators or controlled release of bioactive substances, such as drugs, growth factors, or cells. In addition, these materials are promising candidates for the manufacture of customized scaffolds...
Article
Screen-printed carbon electrodes (SPCE) are enjoying increasing popularity in different electrochemistry areas, from electroanalysis to energy storage and power generation. Highly oriented pyrolytic graphite (HOPG), an ordered form of graphite,...
Article
Poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene), P(VDF-TrFE-CFE), samples were prepared by solvent casting by varying polymer concentration and solvent evaporation temperature. Different sample morphologies were obtained depending on the processing conditions, as well as different physical-chemical properties such as degree of crys...
Article
Full-text available
In the last few decades, surgical implants have been widely used to restore the function of damaged bones or joints. However, it is essential to receive antibiotic or anti-inflammatory treatment to circumvent significant problems associated, such as the colonization of the implanted surface by bacteria or other microorganisms and strong host inflam...
Article
Poly(vinylidene fluoride) (PVDF) and MOF-808-based separators for lithium-ion batteries (LIBs) have been prepared and fully characterized in terms of morphological and thermal properties, electrolyte uptake, and retention, and surface hydrophilic characteristics. The effect of PVDF/MOF-808 separators on the electrochemical performance of LIBs has b...
Article
Full-text available
Multifunctional composites can be achieved by adding two different fillers with complementary properties to a polymer matrix. In this work, novel tri-composite multifunctional materials based on the incorporation of dielectric BaTiO3 (BT) and magnetic CoFe2O4 (CFO) nanoparticles into poly(vinylidene fluoride) (PVDF) have been developed with enhance...
Article
Full-text available
In situ hydrogels have attracted increasing interest in recent years due to the need to develop effective and practical implantable platforms. Traditional hydrogels require surgical interventions to be implanted and are far from providing personalized medicine applications. However, in situ hydrogels offer a wide variety of advantages, such as a no...
Article
Full-text available
Polycarbazole and its derivatives have been extensively used for the last three decades, although the interest in these materials briefly decreased. However, the increasing demand for conductive polymers for several applications such as light emitting diodes (OLEDs), capacitators or memory devices, among others, has renewed the interest in carbazol...
Article
This work focuses on the development of a novel generation of bio-based advanced multifunctional materials, able to replace the synthetic ones and thus contributing to sustaibanility. Silk Fibroin (SF), a protein obtained from Bombyx mori cocoons, has been selected due to its natural accessibility, physico-chemical properties and facile processabil...
Article
Full-text available
Zero-valent iron has been reported as a successful remediation agent for environmental issues, being extensively used in soil and groundwater remediation. The use of zero-valent nanoparticles have been arisen as a highly effective method due to the high specific surface area of zero-valent nanoparticles. Then, the development of nanosized materials...
Book
The last years have seen a general rise in individual awareness on the environmental issues that our society is about to face. The almost total scientific agreement over Global Warming and the day-by-day growing evidences of plastic pollution have fed requests worldwide to public institutions to take actively part in a radical change in today conce...
Article
The present work reports on the control of silk fibroin (SF) porous structures performance through various processing methods. The study includes the analysis of two dissolving techniques (CaCl2/H2O/EtOH ternary and LiBr/H2O binary solutions), three regeneration methods (gelation, lyophilization and gas foaming) and one post-processing (EtOH). In a...
Article
Full-text available
Coumarin derivatives are a class of compounds with a pronounced wide range of applications, especially in biological activities, in the medicine, pharmacology, cosmetics, coatings and food industry. Their potential applications are highly dependent on the nature of the substituents attached to their nucleus. These substituents modulate their photoc...
Article
Shape memory polyurethanes (SMPUs) have generated great attention because of their unique properties. These properties are result of a particular molecular structure consisting of flexible molecular chains with low glass transition temperatures alternating with hard urethane segments. In this field, bisphenol A (BA) has been used for a long time as...
Article
Photopolymerizable materials are commonly used in the industry for a long time, being extended their use in adhesives, coatings, paint and printing ink industries, composite materials, or even in the food industry. Their use in biomedical industry was until recently quite limited to acrylic derivatives used for dental restauration. However, the inc...
Article
Thermosensitive hydrogels based on polysaccharides are suitable candidates for the design of biodegradable and biocompatible injectable drug delivery systems. Thus, the combination of chitosan (CHI) and β-glycerol phosphate disodium salt (β-GP) has been intensively investigated to develop thermo-induced physical gels. With the aim of exploring the...
Article
Taking into consideration environmental issues and additive manufacturing technologies, the development of advanced UV curable polymers and polymer composites is an area of increasing interest. In this scope, polyurethane acrylate (PUA) composites with Indium Tin Oxide (ITO) were produced in order to tune morphology, optical, thermal, mechanical an...
Article
There is an increasing interest in developing advanced materials based on natural resources. In this article, Senentxu Lanceros‐Méndez, Carlos M. Costa, and co‐workers, article number 2000111, report on magnetic nanocomposites based on Silk Fibroin (SF) polymer with magnetic CoFe2O4 (CFO) nanoparticles. Together with the discussion of the physico‐c...
Article
Driven by the need to design environmentally friendly and sustainable polymeric materials that achieve superior mechanical properties, this work is centred on the relationship between the microstructure and the nonlinear quasi-static and dynamic mechanical behaviour of novel polyamide 6 (PA6)/carboxylated hydrogenated acrylonitrile butadiene rubber...