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Multitasking Fe3O4@Cu@Au and Fe3O4@SiO2 nanoparticles for biomedical applications

Authors: BERARDI, GINEVRA;

Multitasking Fe3O4@Cu@Au and Fe3O4@SiO2 nanoparticles for biomedical applications

Abstract

Tra i nanomateriali utili in ambito biomedico, le nanoparticelle di magnetite offrono grandi vantaggi sia in campo diagnostico che terapeutico, permettendo di combinare le loro peculiari proprietà magnetiche con le note proprietà chimico fisiche che caratterizzano le nanoparticelle. Realizzando una struttura core-shell e funzionalizzando la superficie della nanoparticella con sostanze biologicamente o farmacologicamente attive, è possibile, da un lato, conservare le proprietà superparamagnetiche del nucleo e, dall'altro, ottenere nanosistemi multifunzionali più selettivi e/o efficaci nei confronti dei target biologici prescelti. Lo scopo di questa tesi ha riguardato, quindi, la progettazione e la realizzazione di nanosistemi basati su nanoparticelle core-shell costituite da Fe3O4@Cu@Au o Fe3O4@SiO2 utilizzabili per diverse applicazioni biomediche. La sintesi delle nanoparticelle è stata effettuata utilizzando reagenti biocompatibili mentre una approfondita caratterizzazione chimico-fisica dei nanosistemi è stata ottenuta tramite l'analisi con differenti tecniche microscopiche e spettroscopiche. Attraverso esperimenti biologici in vitro, è stata valutata l' efficacia terapeutica e/o l' internalizzazione in cellule immunitarie di nanosistemi opportunamente funzionalizzati con farmaci chemioterapici, macromolecole biologiche o metaboliti secondari con attivià antibiotica. Infine, nanoparticelle funzionalizzate con specifici anticorpi sono state utilizzate per lo sviluppo di strumenti diagnostici per la rivelazione di neurotrasmettitori in vitro.

Country
Italy
Related Organizations
Keywords

superparamagnetic nanoparticles; therapy; antifungal activity; cell-mediated drug delivery; in vitro diagnostics; immunoassays and immunosensors

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    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green