A5040672664- Advanced Sensor and Energy Harvesting Materials
- Dielectric materials and actuators
- biodegradable polymer synthesis and properties
- Orthopaedic implants and arthroplasty
- Bone Tissue Engineering Materials
- Nanoparticle-Based Drug Delivery
- Titanium Alloys Microstructure and Properties
- Characterization and Applications of Magnetic Nanoparticles
- Polymer Surface Interaction Studies
- Electrospun Nanofibers in Biomedical Applications
- Enzyme Production and Characterization
- Biofuel production and bioconversion
- Advanced Cellulose Research Studies
- Polymer Nanocomposites and Properties
- Minerals Flotation and Separation Techniques
- Magnetic and Electromagnetic Effects
- Leptospirosis research and findings
- Electromagnetic wave absorption materials
- Salmonella and Campylobacter epidemiology
- Mesoporous Materials and Catalysis
- Biosensors and Analytical Detection
- Proteins in Food Systems
- Zoonotic diseases and public health
- Vibrio bacteria research studies
- Silicone and Siloxane Chemistry
Universidad Andrés Bello
2021-2025
Universitat Politècnica de Catalunya
2013-2022
Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine
2014
University of Minho
2006-2013
CeNTI (Portugal)
2011
OG Technologies (United States)
2010
The electroactive β-phase of poly(vinylidene fluoride) (PVDF) can be nucleated by introducing CoFe2O4 nanoparticles within the polymer matrix, leading to materials with large potential for sensor and actuator applications. effects nanoparticle electrostatic charge on phase crystallization PVDF is reported. For this purpose, were coated anionic (SDS), nonanionic (Triton X-100), cationic (CTAB) surfactants, obtained used as fillers. It found that piezoelectric β-form increases when higher...
Strain sensors with different architectures, such as single sensors, sensor arrays and a matrix have been developed by inkjet printing technology. Sensors gauge factors up to 2.48, dimensions of 1.5 mm × 1.8 interdigitated structures distance 30 μm between the finger lines achieved based on PeDOT (poly(3,4-ethylenedioxythiophene) conductive ink. gauges silver ink also factor 0.35. Performance tests including 1000 mechanical cycles successfully carried out for development smart prosthesis...
Commercial multi-walled carbon nanotubes (CNT) were functionalized by oxidation with HNO3, to introduce oxygen-containing surface groups, and thermal treatments at different temperatures for their selective removal. The obtained samples characterized adsorption of N2 -196°C, temperature-programmed desorption determination pH the point zero charge. CNT/poly(vinylidene fluoride) composites prepared using above CNT samples, filler fractions up 1 wt%. It was found that reduced composite...
Leptospirosis is the most neglected widespread zoonosis worldwide. In Spain, leptospirosis reports in people and animals have increased lately. Cats can become infected with Leptospira, as well be chronic carriers. The aim of this study was to determine serological antibody prevalence against Leptospira sp., blood DNA, shedding DNA from pathogenic species urine cats Spain. Microagglutination tests (MAT) TaqMan real-time polymerase chain reaction (PCR) were performed. antibodies detected...
A lack of primary stability and osteointegration in metallic implants may result implant loosening failure. Adding porosity to reduces the stress shielding effect improves performance, allowing surrounding bone tissue grow into scaffold. However, a bioactive surface is needed stimulate improve mechanical stability. In this study, porous titanium were produced via powder sintering create different diameters open interconnectivity. Two strategies used generate on foams: (1) an inorganic alkali...
The surface of an acrylic fibre was modified with a commercial nitrilase (EC 3.5.5.1). effect solvents and polyols on catalysis efficiency stability investigated. action the fabric improved by combined addition 1 M sorbitol 4% N, N-dimethylacetamide. colour levels for samples treated increased 156% comparing to control samples. When additives were introduced in treatment media, 199%. enzymatic conversion nitrile groups into corresponding carboxylic groups, surface, followed release ammonia...
In this study, highly-interconnected porous titanium implants were produced by powder sintering with different diameters and open interconnectivity. The actual foams using high cost technologies: Chemical Vapor Deposition (CVD), Physical (PVD), spark plasma sintering, the porosity and/or interconnection was not optimized. aim to generate a bioactive surface on two strategies, based inorganic thermo-chemical treatment organic coating peptide adsorption, enhance osseointegration. Porosity NaCl...
Actual polymer bioresorbable stents (BRS) generate a risk of device thrombosis as consequence the incomplete endothelialization after stent implantation. The material-tissue interactions are not fully controlled and fabrication techniques do allow personalized medical solutions. This work investigates effect different functionalization strategies onto solvent-cast poly(l-lactic acid) (PLLA) surfaces with capacity to enhance surface endothelial adhesion 3D printed BRS. PLLA films were...
Poly(lactic acid) (PLA) electrospun membranes were obtained by electrospinning and characterized scanning electron microscopy (SEM) thermal analysis. The polymer showed a random fiber distribution with mean diameter of 1 μm (±300 nm). Differential calorimetry (DSC) experiments that the had glass transition, cold crystallization, melting temperatures 54, 90, 151°C, respectively. kinetic study degradation PLA under nitrogen atmosphere was performed means thermogravimetry (TGA). It found...
Antimicrobial resistance (AMR) is a major global public threat, now largely reported in natural environments. Seabirds are carriers of extended-spectrum β-lactamase-producing Escherichia coli (ESBL-E. coli), but different foraging and breeding behaviour could impact ESBL-E. circulation. We compared the prevalence genetic determinants from resident Kelp gulls (Larus dominicanus, Ld), migratory Franklin's pipixcan, Lp), endemic Peruvian pelicans (Pelecanus thagus, Pt) Humboldt Current...
The impacts of two hybrid cloned commercial cellulases designed for detergency on cotton fibres were compared. HiCel45 has a family 45 catalytic domain and fungal cellulose binding module (CBM) from the fungus Humicola insolens. BaCel5 5 CBM Bacillus spp. bound irreversibly to under buffer conditions tested while was found bind reversibly because it showed low adsorption. seems yield more activity towards than mild stirring conditions, but strong mechanical agitation both enzymes produce...