Nanostructured silver (Ag) and gold (Au) are widely known to be potent biocidal and cytotoxic age... more Nanostructured silver (Ag) and gold (Au) are widely known to be potent biocidal and cytotoxic agents as well as biocompatible nanomaterials. It has been recently reported that combining both metals in a specific chemical composition causes a significant enhancement in their antibacterial activity against antibiotic-resistant bacterial strains, as well as in their anticancer effects, while preserving cytocompatibility properties. In this work, Ag/Au bimetallic nanoparticles over a complete atomic chemical composition range were prepared at 10 at% through a green, highly reproducible, and simple approach using starch as a unique reducing and capping agent. The noble metal nanosystems were thoroughly characterized by different analytical techniques, including UV-visible and FT-IR spectroscopies, XRD, TEM/EDS, XPS and ICP-MS. Moreover, absorption spectra simulations for representative colloidal Ag/Au-NP samples were conducted using FDTD modelling. The antibacterial properties of the bim...
Resumen del trabajo presentado a Ibertriva (X Iberian Conference on Tribology / XI Iberian Vacuum... more Resumen del trabajo presentado a Ibertriva (X Iberian Conference on Tribology / XI Iberian Vacuum Conference), celebrada en Sevilla (España) del 26 al 28 de junio de 2019.Along the mankind's history Iron sulfide (FeS2) was used in numerous applications from firearms to jewelries, and it holds promise as a high-tech material with the use in solar cells, lithium batteries, spintronics, etc. Furthermore, it has an important role as an inexpensive, Earth-abundant, off-the-shelf catalyst effective for various heterogeneous processes including hydroliquefaction of oil shale. Combination of heterogeneous catalysis with mechanical action such as grinding, milling, rubbing, etc. is usually beneficial for increasing reaction yield and obtaining new reaction products. However, the mechanistic aspects of mechanochemical activation of pyrite are not well studied yet. This work aims to investigate tribochemical reactions on surface of FeS2 thin films prepared by sulfuration of iron. Tribochem...
Trabajo presentado en la 7th Multifrequency AFM Conference, celebrada en Madrid, del 18 al 20 de ... more Trabajo presentado en la 7th Multifrequency AFM Conference, celebrada en Madrid, del 18 al 20 de abril de 2018
Device and method of manufacturing nanoparticles. # A device is described for making nanoparticle... more Device and method of manufacturing nanoparticles. # A device is described for making nanoparticles by sputtering techniques several targets. Such a device is a source of aggregates of a material that allows the manufacture of nanoparticles with variable and controlled chemical composition, controlled size and also in structure? Core-shell ?.
Trabajo presentado al European Congress and Exhibition on Advanced Materials and Processes (EUROM... more Trabajo presentado al European Congress and Exhibition on Advanced Materials and Processes (EUROMAT), celebrado en Estocolmo (Suecia) del 1 al 5 de septiembre de 2019.
Trabajo presentado al European Congress and Exhibition on Advanced Materials and Processes (EUROM... more Trabajo presentado al European Congress and Exhibition on Advanced Materials and Processes (EUROMAT), celebrado en Estocolmo (Suecia) del 1 al 5 de septiembre de 2019.
Trabajo presentado en el Materials Research Society (MRS) Spring Meeting, celebrado en Phoenix (A... more Trabajo presentado en el Materials Research Society (MRS) Spring Meeting, celebrado en Phoenix (Arizona, Estados Unidos), del 2 al 6 de abril de 2018
Trabajo presentado en la conferencia Fuerzas y Tunel (FyT2016), celebrada en Girona del 5 al 7 de... more Trabajo presentado en la conferencia Fuerzas y Tunel (FyT2016), celebrada en Girona del 5 al 7 de septiembre de 2016.
Cancer and antimicrobial resistance to antibiotics are two of the most worrying healthcare concer... more Cancer and antimicrobial resistance to antibiotics are two of the most worrying healthcare concerns that humanity is facing nowadays. Some of the most promising solutions for these healthcare problems may come from nanomedicine. While the traditional synthesis of nanomaterials is often accompanied by drawbacks such as high cost or the production of toxic by-products, green nanotechnology has been presented as a suitable solution to overcome such challenges. In this work, an approach for the synthesis of tellurium (Te) nanostructures in aqueous media has been developed using aloe vera (AV) extracts as a unique reducing and capping agent. Te-based nanoparticles (AV-TeNPs), with sizes between 20 and 60 nm, were characterized in terms of physicochemical properties and tested for potential biomedical applications. A significant decay in bacterial growth after 24 h was achieved for both Methicillin-resistant Staphylococcus aureus and multidrug-resistant Escherichia coli at a relative low ...
Starch-capped Cu2O nanocubes were used as an active electrochemical element to directly detect gl... more Starch-capped Cu2O nanocubes were used as an active electrochemical element to directly detect glucose.
Nanostructured silver (Ag) and gold (Au) are widely known to be potent biocidal and cytotoxic age... more Nanostructured silver (Ag) and gold (Au) are widely known to be potent biocidal and cytotoxic agents as well as biocompatible nanomaterials. It has been recently reported that combining both metals in a specific chemical composition causes a significant enhancement in their antibacterial activity against antibiotic-resistant bacterial strains, as well as in their anticancer effects, while preserving cytocompatibility properties. In this work, Ag/Au bimetallic nanoparticles over a complete atomic chemical composition range were prepared at 10 at% through a green, highly reproducible, and simple approach using starch as a unique reducing and capping agent. The noble metal nanosystems were thoroughly characterized by different analytical techniques, including UV-visible and FT-IR spectroscopies, XRD, TEM/EDS, XPS and ICP-MS. Moreover, absorption spectra simulations for representative colloidal Ag/Au-NP samples were conducted using FDTD modelling. The antibacterial properties of the bim...
Resumen del trabajo presentado a Ibertriva (X Iberian Conference on Tribology / XI Iberian Vacuum... more Resumen del trabajo presentado a Ibertriva (X Iberian Conference on Tribology / XI Iberian Vacuum Conference), celebrada en Sevilla (España) del 26 al 28 de junio de 2019.Along the mankind's history Iron sulfide (FeS2) was used in numerous applications from firearms to jewelries, and it holds promise as a high-tech material with the use in solar cells, lithium batteries, spintronics, etc. Furthermore, it has an important role as an inexpensive, Earth-abundant, off-the-shelf catalyst effective for various heterogeneous processes including hydroliquefaction of oil shale. Combination of heterogeneous catalysis with mechanical action such as grinding, milling, rubbing, etc. is usually beneficial for increasing reaction yield and obtaining new reaction products. However, the mechanistic aspects of mechanochemical activation of pyrite are not well studied yet. This work aims to investigate tribochemical reactions on surface of FeS2 thin films prepared by sulfuration of iron. Tribochem...
Trabajo presentado en la 7th Multifrequency AFM Conference, celebrada en Madrid, del 18 al 20 de ... more Trabajo presentado en la 7th Multifrequency AFM Conference, celebrada en Madrid, del 18 al 20 de abril de 2018
Device and method of manufacturing nanoparticles. # A device is described for making nanoparticle... more Device and method of manufacturing nanoparticles. # A device is described for making nanoparticles by sputtering techniques several targets. Such a device is a source of aggregates of a material that allows the manufacture of nanoparticles with variable and controlled chemical composition, controlled size and also in structure? Core-shell ?.
Trabajo presentado al European Congress and Exhibition on Advanced Materials and Processes (EUROM... more Trabajo presentado al European Congress and Exhibition on Advanced Materials and Processes (EUROMAT), celebrado en Estocolmo (Suecia) del 1 al 5 de septiembre de 2019.
Trabajo presentado al European Congress and Exhibition on Advanced Materials and Processes (EUROM... more Trabajo presentado al European Congress and Exhibition on Advanced Materials and Processes (EUROMAT), celebrado en Estocolmo (Suecia) del 1 al 5 de septiembre de 2019.
Trabajo presentado en el Materials Research Society (MRS) Spring Meeting, celebrado en Phoenix (A... more Trabajo presentado en el Materials Research Society (MRS) Spring Meeting, celebrado en Phoenix (Arizona, Estados Unidos), del 2 al 6 de abril de 2018
Trabajo presentado en la conferencia Fuerzas y Tunel (FyT2016), celebrada en Girona del 5 al 7 de... more Trabajo presentado en la conferencia Fuerzas y Tunel (FyT2016), celebrada en Girona del 5 al 7 de septiembre de 2016.
Cancer and antimicrobial resistance to antibiotics are two of the most worrying healthcare concer... more Cancer and antimicrobial resistance to antibiotics are two of the most worrying healthcare concerns that humanity is facing nowadays. Some of the most promising solutions for these healthcare problems may come from nanomedicine. While the traditional synthesis of nanomaterials is often accompanied by drawbacks such as high cost or the production of toxic by-products, green nanotechnology has been presented as a suitable solution to overcome such challenges. In this work, an approach for the synthesis of tellurium (Te) nanostructures in aqueous media has been developed using aloe vera (AV) extracts as a unique reducing and capping agent. Te-based nanoparticles (AV-TeNPs), with sizes between 20 and 60 nm, were characterized in terms of physicochemical properties and tested for potential biomedical applications. A significant decay in bacterial growth after 24 h was achieved for both Methicillin-resistant Staphylococcus aureus and multidrug-resistant Escherichia coli at a relative low ...
Starch-capped Cu2O nanocubes were used as an active electrochemical element to directly detect gl... more Starch-capped Cu2O nanocubes were used as an active electrochemical element to directly detect glucose.
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Papers by Yves Huttel