Search results for "nanomaterial"
showing 10 items of 330 documents
Polímeros de coordinación porosos como reactores químicos para nuevos materiales avanzados: química en espacios confinados
2022
The central aim of this PhD thesis is to develop synthetic procedures to construct metal organic-frameworks (MOFs) able to host/build up molecular-based species, such as metal ions with particular coordination environments, single atom catalysts (SACs), sub-nanometric metal clusters (SNMCs) and supramolecular coordination complexes (SCCs), otherwise hardly accessible, with high catalytic reactivity and in a multigram scale. The nature of the final assemblies has been characterised with a myriad of physical techniques, where taking advantage of the high crystallinity and structural robustness of the MOFs used as platforms, single-crsytal X-ray crystallography play a promienet role and provid…
Nanomaterials: development of new analysis strategies
2022
La nanociencia y la nanotecnología representan áreas de investigación en expansión, que involucran estructuras, dispositivos y sistemas con propiedades y funciones novedosas. Los nanomateriales (NMs) son una pieza clave en estos campos de estudio cuyas propiedades y rendimiento particulares deben conocerse y estudiarse. De esta forma, en esta tesis se han llevado a cabo diferentes metodologías analíticas con el fin de determinar y caracterizar los NMs como analitos. Además, se han evaluado diferentes herramientas analíticas que emplean estos NMs, con el objetivo de mejorar los procesos analíticos existentes y desarrollar nuevos. Por lo tanto, las AuNPs y AgNPs como NPs metálicas, Carbon Bla…
Materiali nanostrutturati e tecnologie innovative per il recupero e la conservazione dei beni architettonici: un approccio interdisciplinare
2009
Nuovi Catalizzatori Sol-Gel per la Chimica Fine e la Valorizzazione della Biomassa
2014
Manufacturing of graphene nanodisks for surface plasmon measurements
2017
Grafeeni on ilmestynyt tieteen rintamalle kovalla ryminällä vasta viimeisen 13 vuoden aikana, mutta on jo nyt yksi mielenkiintoisimmista tutkimuskohteista, jolla voisi olla lukuisia sovelluksia tulevaisuudessa. Grafeeni on ilmestynyt myös plasmoniikan tutkimuskohteeksi sen lukuisten ainutlaatuisten sähköisten ja optisten ominaisuuksien takia ja sen ominaisuuksien muokattavuuden helppouden takia. Grafeeni voisi mahdollisesti korvata yleisesti käytössä olleet jalot metallit kuten kullan ja hopean pintaplasmonien tuotossa ja tutkimuksessa ja voisi johtaa uudenlaiseen valon kontrollointiin nanoskaalassa ja optiikan ja elektroniikan yhdistämiseen tässä pienessä mittakaavassa. Tässä työssä tavoit…
Nanotechnologies for architecture
In architecture and building practise, the development of new materials such as the nanostructured materials, and especially the nanocomposite, will lead to a revolution in the way we think about buildings and living. New materials, new methods, new structures will allow us construct higher and bigger enhanced buildings, structures and infrastructures with new functionalities and new perspectives. In this research we will analyze how these new technologies will change, or are still changing, the construction world.
Nanotechnology for Conservation: The Case of Archaeological Sites
2006
L'articolo espone le principali problematiche conservative dei siti archeologici e analizza la possibilità di applicazione dei nuovi nanomateriali, derivanti dalle nanotecnologie come soluzioni innovative per affrontare problematiche irrisolte con i prodotti tradizionali. The article presents the main conservation problems of archaeological sites and analyzes the possibility of new nanomaterials application, deriving from nanotechnologies as innovative solutions to address unresolved problems with traditional products.
VANTAGGI, RISCHI E PRECAUZIONE PER I PRODOTTI NANOSTRUTTURATI
2010
I Nanomateriali rappresentano il più attraente orizzonte per l'innovazione tecnologica. Siamo circondati da prodotti che impiegano la nanomateria e che migliorano sensibilmente, seppur almeno apparentemente, la qualità della nostra vita. Ma quale sono i rischi che si celano dietro l'innovazione del terzo millennio? Il contributo riferisce di studi, ricerche e convegni relativi alla produzione di materiali nanotecnologici in riferimento ai rischi possibili per la salute dell'uomo e per la salvaguardia dell’ambiente. Il Regolamento della Commissione europea sulla registrazione, valutazione, autorizzazione e restrizione di chimiche, in particolare l’art. 7, suggerisce il “principio di precauzi…
Elemental and microbiota content in indoor and outdoor air using recuperation unit filters
2021
Detection and quantification of engineered nanomaterials in environmental systems require precise knowledge of the elemental composition, association, and ratios in homologous natural nanomaterials (NNMs). Here, we characterized soil NNMs at the single particle level using single particle-inductively coupled plasma-time of flight-mass spectrometer (SP-ICP-TOF-MS) in order to identify the elemental purity, composition, associations, and ratios within NNMs. Elements naturally present as a major constituent in NNMs such as Ti, and Fe occurred predominantly as pure/single metals, whereas elements naturally present at trace levels in NNMs occurred predominantly as impure/multi-metal NNMs such as…
Synergistic photo-release of drugs by non-linear excitation
2014
ABSTRACTNanomaterials engineered in novel multi-modular systems in which every component works in a synergistic way with others could potentially lead to a completely new type of tools for nanomedicine. The development of nanostructures able to release drugs directly within the target after a stimulus can drastically improve the therapeutics efficiency by reducing side effects. Gold nanoparticles offer one of the most suitable platforms for the development of modular nano-devices. On the one hand, their surface properties enable effective coating by peptides containing at least one cysteine, thus yielding stable and non-cytotoxic systems. On the other, their intriguing photophysics, charact…