Assisted Synthesis of Coated Iron Oxide Nanoparticles for Magnetic Hyperthermia

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abstract

Magnetite nanoparticles were synthesized by the co-precipitation method with and without the assistance of an additive, namely, gelatin, agar-agar or pectin, using eco-friendly conditions and materials embodying a green synthesis process. X-ray diffraction and transmission electron microscopy were used to analyze the structure and morphology of the nanoparticles. Magnetic properties were investigated by SQUID magnetometry and Fe-57 Mossbauer spectroscopy. The results show that the presence of the additives implies a higher reproducibility of the morphological magnetic nanoparticle characteristics compared with synthesis without any additive, with small differences associated with different additives. To assess their potential for magnetic hyperthermia, water-based suspensions of these nanoparticles were prepared with and without citric acid. The stable solutions obtained were studied for their structural, magnetic and heating efficiency properties. The results indicate that the best additive for the stabilization of a water-based emulsion and better heating efficiency is pectin or a combination of pectin and agar-agar, attaining an intrinsic loss power of 3.6 nWg(-1).

keywords

CROSS-LINKING; DELIVERY; GELATIN; STABILITY; CHITOSAN; BEHAVIOR; FILMS

subject category

Chemistry; Science & Technology - Other Topics; Materials Science; Physics

authors

Ferreira, LP; Reis, CP; Robalo, TT; Jorge, MEM; Ferreira, P; Goncalves, J; Hajalilou, A; Cruz, MM

our authors

no photo

Joana Daniela Ferreira Gonçalves

Research Fellowship
foto Paula Celeste da Silva Ferreira

Paula Celeste da Silva Ferreira

Coordinating Researcher

Groups

G2 - Photonic, Electronic and Magnetic Materials
G4 - Renewable Materials and Circular Economy

Projects

CICECO - Aveiro Institute of Materials (UIDB/50011/2020)

CICECO - Aveiro Institute of Materials (UIDP/50011/2020)

Associated Laboratory CICECO-Aveiro Institute of Materials (LA/P/0006/2020)

acknowledgements

This research had financial support from the Fundacao para a Ciencia e a Tecnologia (FCT, Portugal) I.P./MCTES through national funds (PIDDAC) in projects OrMagNa-PTDC/NANMAT/28785/2017 and the Centre grants UIDB/04046/2020 and UIDP/04046/2020 to BioISI and UIDB/50011/2020, UIDP/50011/2020 and LA/P/0006/2020 to CICECO and through the funding of research infrastructure NECL-proj. 22096 (including a grant for Abdollah Hajalilou).

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Publication Details

type
Journal Article
year
2022
journal
NANOMATERIALS
volume
12
article number
1870
publisher
MDPI
issue
11
digital object identifier
10.3390/nano12111870
web of science article identifier
WOS:000808652400001

Journal Metrics (JCR 2019)

Journal Impact Factor
4.324
Journal Impact Factor (5 yrs)
4.514
category normalized journal percentile
65.762

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