|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|
|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.|
|Learning Resource Type||Article|
|Publisher Place||United States|
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