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Author Dong, C. ♦ Corsetti, S. ♦ Passeri, D. ♦ Rossi, M. ♦ Carafa, M. ♦ Marianecci, C. ♦ Pantanella, F. ♦ Rinaldi, F. ♦ Ingallina, C. ♦ Sorbo, A.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ ATOMIC FORCE MICROSCOPY ♦ CALIBRATION ♦ MAGNETIC FIELDS ♦ MAGNETIC MATERIALS ♦ MANGANESE PHOSPHIDES ♦ NANOPARTICLES ♦ SUBSTRATES ♦ SURFACTANTS ♦ TOPOGRAPHY
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.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-06-23
Publisher Place United States
Volume Number 1667
Issue Number 1


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