Open AccessHierarchical structure and antibacterial activity of olive oil based MZFe2O4 ferrofluids
Author(s) -
Defi Yuliantika,
Ahmad Taufiq,
Edy Giri Rachman Putra
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1436/1/012145
Subject(s) - ferrofluid , materials science , chemical engineering , pulmonary surfactant , small angle x ray scattering , crystallography , scattering , chemistry , optics , physics , quantum mechanics , engineering , magnetic field
MZFe 2 O 4 (Z = Zn; M = Mn) ferrofluids based on olive oil as liquid carrier was successfully prepared by coprecipitation route. The stability of the MZFe 2 O 4 ferrofluids was maintained by using oleic acid as surfactant agent. Their morphology, crystal structure, fractal structure, and optical behaviours were investigated by means of SEM, XRD, SAXS, and UV-Vis spectroscopy. Furthermore, the potency as antibacterial agent of the MZFe 2 O 4 ferrofluids was explored by dilution method. The analysis for the XRD data presented that the MZFe 2 O 4 particles as fillers constructed in nanometric scale with cubic spinel structure. The SEM images of the MZFe 2 O 4 powders tended to agglomerate with spherical shape. Moreover, the MZFe 2 O 4 ferrofluids constructed complex structure with aggregated fractal originated by interaction of internal force of magnetic particles. Theoretically, such phenomenon is predicted as the effect of filler, surfactant, and liquid carrier in the ferrofluids. Interestingly, the MZFe 2 O 4 ferrofluids demonstrated superior performance as antibacterial agent than those of MZFe 2 O 4 nanopowders. Technically, the superior performance of the ferrofluids is believed from its significant enhancing inhibition zone diameter as the effect of olive oil as an appropriate carrier.