title: Properties of theranostic nanoparticles determined in suspension by ultrasonic spectroscopy.
abstract: In the context of growing use of nanoparticles, it is important to be able to characterize all their physical properties in order to understand their behavior, to optimize them, and to control their quality. We showed that ultrasonic spectroscopy provides many of the desired properties. To do so, we used as an example nanocapsules made of a polymer shell encaspulating a liquid perfluorocarbon core and designed them for theranostic applications. Frequency-dependent measurements of both ultrasound velocity and attenuation were performed on nanocapsule suspensions. Then the desired properties were extracted by analyzing the experimental data using a recently developed model that relates the speed of sound and attenuation of a suspension to the geometrical and viscoelastic properties of the nanocapsules.
authors.affiliation: Sorbonne Universités, UPMC Univ Paris 06, CNRS-UMR 7588, Institut des NanoSciences de Paris, F-75005, Paris, France. jean-louis.thomas@upmc.fr.
authors.forename: Ksenia
authors.initials: K
authors.lastname: Astafyeva
authors.forename: Jean-Louis
authors.initials: JL
authors.lastname: Thomas
authors.forename: François
authors.initials: F
authors.lastname: Coulouvrat
authors.forename: Matthieu
authors.initials: M
authors.lastname: Guédra
authors.forename: Odile
authors.initials: O
authors.lastname: Diou
authors.forename: Ludivine
authors.initials: L
authors.lastname: Mousnier
authors.forename: Nicolas
authors.initials: N
authors.lastname: Tsapis
authors.forename: Wladimir
authors.initials: W
authors.lastname: Urbach
authors.forename: Nicolas
authors.initials: N
authors.lastname: Taulier
mesh_terms: D008962:Models, Theoretical; D053769:Nanocapsules / Q000737:chemistry; D053758:Nanoparticles / Q000737:chemistry*; D000068936:Theranostic Nanomedicine; D014465:Ultrasonics
chemical_list: D053769:Nanocapsules