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Sensors (Basel, Switzerland)

Applications of surface plasmon resonance (SPR) for the characterization of nanoparticles developed for biomedical purposes.


PMID 23443386

Abstract

Great interest is currently being devoted to the development of nanoparticles (NPs) for biomedical purposes, designed to improve the pharmacokinetic profile of their cargos (either imaging probes or drugs) and to enhance the specific targeting at the disease site. Recent works suggest that Surface Plasmon Resonance (SPR), widely used for the analysis of biomolecular interactions, represents a technique of choice for rapid and quantitative analyses of the interaction between NPs--functionalized with specific ligands--and their putative biological targets. Moreover, SPR can provide important details on the formation and the role of the protein "corona", i.e., the protein layer which coats NPs once they come into contact with biological fluids. These novel applications of SPR sensors may be very useful to characterize, screen and develop nanodevices for biomedical purposes.

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