Surface modifications of cobalt ferrites nanoparticles with chitosan, polyethylene glycol, polyvinyl alcohol, and polyvinylpyrrolidone as antibacterial agents against Staphylococcus aureus, Pseudomonas aeruginosa, and Salmonella enterica

IF 2.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Polyhedron Pub Date : 2025-02-01 DOI:10.1016/j.poly.2024.117354

Linh Doan , An H. Huynh , Khoa Tran , Quynh N. Le , Khanh G. Huynh

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引用次数: 0

Abstract

The novelty of this research is developing novel magnetic antibacterial composite. Specifically, cobalt Ferrite (CoFe₂O₄) was synthesized using the co-precipitation method using 1:1.24 CoCl₂·6H₂O:FeCl₃·6H₂O (w/w) in 1.25 M NaOH. The cobalt ferrite was calcined at various temperatures 150 °C, 300 °C, 450 °C, 600 °C, 750 °C, 900 °C to obtain SC150, SC300, SC450, SC600, SC750, and SC900. After coating these particles with polymer blend (M8) – polyethylene glycol (PEG), chitosan (CS), polyvinyl alcohol (PVA), polyvinylpyrrolidone (PVP), the antibacterial activities against Staphylococcus aureus (SA), Pseudomonas aeruginosa (PA), and Salmonella enterica (SE) were determined. Out of these materials, M8SC450 is the best antibacterial agent against SA, SE, and PA. M8SC450 can inhibit at least 90 % of the growth of SE and PA, while inhibiting at least 50 % of the growth of SA. However, at 25 % dilution of M8SC450, SA was killed.

From the characterization methods, SC450 was confirmed to be cobalt ferrite (CoFe₂O₄) with an average size of 11.8 ± 2.0 nm. Additionally, SC450 exhibited the ferromagnetism property and had the highest saturated magnetization of 39.71 emu/g. After coating SC450 with M8, the composite – M8SC450, with 11.68 ± 0.22 % mass ratio (SC450:M8), has the highest saturated magnetization decreased to 5.44 emu/g and still obtain the ferromagnetic properties.

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来源期刊

Polyhedron 化学-晶体学

CiteScore

4.90

自引率

7.70%

发文量

515

审稿时长

2 months

期刊介绍： Polyhedron publishes original, fundamental, experimental and theoretical work of the highest quality in all the major areas of inorganic chemistry. This includes synthetic chemistry, coordination chemistry, organometallic chemistry, bioinorganic chemistry, and solid-state and materials chemistry. Papers should be significant pieces of work, and all new compounds must be appropriately characterized. The inclusion of single-crystal X-ray structural data is strongly encouraged, but papers reporting only the X-ray structure determination of a single compound will usually not be considered. Papers on solid-state or materials chemistry will be expected to have a significant molecular chemistry component (such as the synthesis and characterization of the molecular precursors and/or a systematic study of the use of different precursors or reaction conditions) or demonstrate a cutting-edge application (for example inorganic materials for energy applications). Papers dealing only with stability constants are not considered.