Dependence of PEO content in the preparation of Fe3O4/PEO/TMAH ferrofluids and their antibacterial activity

This work was conducted to investigate the effects of the polyethylene oxide (PEO) as a template on the structures, functional groups, magnetic properties, and antibacterial activities of Fe 3 O 4 /PEO/TMAH ferrofluids. Synthesis of Fe 3 O 4 nanoparticles was carried out by using the co-precipitatio...

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Bibliographic Details
Published in:Journal of polymer research 2020, Vol.27 (5), Article 117
Main Authors: Taufiq, Ahmad, Ikasari, Fitri Nur, Hidayat, Nurul, Ulya, Habibatun Nurul, Saputro, Rosy Eko, Mufti, Nandang, Hidayat, Arif, Sunaryono, Sunaryono, Chuenchom, Laemthong
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Dilution
E coli
Ferrofluids
Functional groups
Industrial Chemistry/Chemical Engineering
Ions
Iron oxides
Magnetic properties
Magnetic saturation
Molecular weight
Nanoparticles
Original Paper
Polyethylene
Polyethylene oxide
Polymer Sciences
Structural analysis
Synthesis
Topical Collection on Functional Polymers
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Summary:This work was conducted to investigate the effects of the polyethylene oxide (PEO) as a template on the structures, functional groups, magnetic properties, and antibacterial activities of Fe 3 O 4 /PEO/TMAH ferrofluids. Synthesis of Fe 3 O 4 nanoparticles was carried out by using the co-precipitation method obtained from iron sand. The ferrofluid synthesis was done by coating Fe 3 O 4 nanoparticles with tetramethylammonium hydroxide (TMAH) and dispersed in H 2 O. Based on the structural analysis, it was known that all samples had a magnetite phase with particle sizes ranging from 7.8 to 10.5 nm. The Fe 3 O 4 /PEO/TMAH ferrofluid functional groups presented appropriate bonds of Fe 3 O 4 as a filler, TMAH as a surfactant, and H 2 O as a liquid carrier. The magnetic characteristics of Fe 3 O 4 nanoparticles and Fe 3 O 4 /PEO/TMAH ferrofluids indicated the superparamagnetic state. The saturation magnetization value of Fe 3 O 4 nanoparticles and Fe 3 O 4 /PEO/TMAH ferrofluids decreased as increasing the molecular weight of polyethylene oxide ranging from 1000 to 20,000. Furthermore, the antibacterial activities performed by the dilution method identified that increasing the molecular weight of polyethylene oxide increased the antibacterial performance of the Fe 3 O 4 /PEO/TMAH ferrofluids against Escherichia coli and Bacillus subtilis.
ISSN:1022-9760
1572-8935
DOI:10.1007/s10965-020-02100-w