Magnetic Nano- and Microparticles in Life Sciences and Medical Imaging

Horák, Daniel

doi:10.1007/978-3-030-39923-8_5

Cited by 2 publications

(1 citation statement)

References 152 publications

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“…Despite high degree of uncertainty, both parameters ( M rs and B c ) suggested an increasing trend ( Table 1 ). The only reliably determined magnetic parameter was saturation induced magnetization M s , reflecting the concentration of ferrimagnetic particles and confirming that the particles could be removed from aqueous suspensions using a magnet [ 42 ]. Stable single-domain and coarse multi-domain magnetite and maghemite have saturation magnetization of ~92 and ~80 A∙m 2 /kg, respectively; however, magnetic parameters of synthetic nanosized iron oxides are known to be size-dependent [ 43 , 44 ].…”

Section: Resultsmentioning

confidence: 99%

Cationic Polymer-Coated Magnetic Nanoparticles with Antibacterial Properties: Synthesis and In Vitro Characterization

et al. 2021

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Uniformly sized magnetite nanoparticles (Dn = 16 nm) were prepared by a thermal decomposition of Fe(III) oleate in octadec-1-ene and stabilized by oleic acid. The particles were coated with Sipomer PAM-200 containing both phosphate and methacrylic groups available for the attachment to the iron oxide and at the same time enabling (co)polymerization of 2-(dimethylamino)ethyl methacrylate and/or 2-tert-butylaminoethyl methacrylate at two molar ratios. The poly[2-(dimethylamino)ethyl methacrylate] (PDMAEMA) and poly[2-(dimethylamino)ethyl methacrylate-co-2-tert-butylaminoethyl methacrylate] [P(DMAEMA-TBAEMA)] polymers and the particles were characterized by 1H NMR spectroscopy, size-exclusion chromatography, transmission electron microscopy, dynamic light scattering, thermogravimetric analysis, magnetometry, and ATR FTIR and atomic absorption spectroscopy. The antimicrobial effect of cationic polymer-coated magnetite nanoparticles tested on both Escherichia coli and Staphylococcus aureus bacteria was found to be time- and dose-responsive. The P(DMAEMA-TBAEMA)-coated magnetite particles possessed superior biocidal properties compared to those of P(DMAEMA)-coated one.

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Section: Resultsmentioning

confidence: 99%