We report a phenomenological approach for the quantification of the diameter of magnetic nanoparticles (MNPs) incorporated in non-ionic surfactant vesicles (niosomes) using magnetic force microscopy (MFM). After a simple specimen preparation, i.e., by putting a drop of solution containing MNPs-loaded niosomes on flat substrates, topography and MFM phase images are collected. To attempt the quantification of the diameter of entrapped MNPs, the method is calibrated on the sole MNPs deposited on the same substrates by analyzing the MFM signal as a function of the MNP diameter (at fixed tip-sample distance) and of the tip-sample distance (for selected MNPs). After calibration, the effective diameter of the MNPs entrapped in some niosomes is quantitatively deduced from MFM images.

Visualization and quantification of magnetic nanoparticles into vesicular systems by combined atomic and magnetic force microscopy / Dong, Chunhua; Corsetti, S.; Passeri, Daniele; Rossi, Marco; Carafa, Maria; Pantanella, Fabrizio; Rinaldi, Federica; Ingallina, Cinzia; Sorbo, A.; Marianecci, Carlotta. - STAMPA. - 1667:(2015), p. 020011. (Intervento presentato al convegno NANOFORUM 2014 tenutosi a ita nel 2014) [10.1063/14922567].

Visualization and quantification of magnetic nanoparticles into vesicular systems by combined atomic and magnetic force microscopy

DONG, CHUNHUA
Primo
;
PASSERI, Daniele;ROSSI, Marco;CARAFA, Maria;PANTANELLA, Fabrizio;RINALDI, FEDERICA;INGALLINA, CINZIA;MARIANECCI, CARLOTTA
2015

Abstract

We report a phenomenological approach for the quantification of the diameter of magnetic nanoparticles (MNPs) incorporated in non-ionic surfactant vesicles (niosomes) using magnetic force microscopy (MFM). After a simple specimen preparation, i.e., by putting a drop of solution containing MNPs-loaded niosomes on flat substrates, topography and MFM phase images are collected. To attempt the quantification of the diameter of entrapped MNPs, the method is calibrated on the sole MNPs deposited on the same substrates by analyzing the MFM signal as a function of the MNP diameter (at fixed tip-sample distance) and of the tip-sample distance (for selected MNPs). After calibration, the effective diameter of the MNPs entrapped in some niosomes is quantitatively deduced from MFM images.
2015
NANOFORUM 2014
Atomic force microscopy; Magnetic force microscopy; Magnetic nanoparticles; Niosomes; Physics and Astronomy (all)
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Visualization and quantification of magnetic nanoparticles into vesicular systems by combined atomic and magnetic force microscopy / Dong, Chunhua; Corsetti, S.; Passeri, Daniele; Rossi, Marco; Carafa, Maria; Pantanella, Fabrizio; Rinaldi, Federica; Ingallina, Cinzia; Sorbo, A.; Marianecci, Carlotta. - STAMPA. - 1667:(2015), p. 020011. (Intervento presentato al convegno NANOFORUM 2014 tenutosi a ita nel 2014) [10.1063/14922567].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/840022
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