Antimicrobial activity of mesoporous organic functionalized hexagon Fe3O4 nanosheets for wastewater treatment

Theodor Bilharz Research Institute

Bibliographic Information

Authors: Azzam A.M.; Shenashen M.A.; Tawfik A.; Safwat N.A.; Mostafa B.B.; El-Safty S.A.

Journal: Environmental Nanotechnology, Monitoring and Management

Publisher: Elsevier B.V.

Publication Date: December 2022

Volume / Issue: Volume 18

Article No.: 100739

ISSN: 22151532

DOI: 10.1016/j.enmm.2022.100739

Scopus: View on Scopus

Document Type: Article

Authors and Affiliations

Azzam A.M., National Institute for Materials Science (NIMS), 1-2-1 Sengen, Ibaraki-ken, Tsukubashi, 305-0047, Japan, Environmental Research Department, Theodor Bilharz Research Institute (TBRI), Giza, 12411, Egypt; Shenashen M.A., National Institute for Materials Science (NIMS), 1-2-1 Sengen, Ibaraki-ken, Tsukubashi, 305-0047, Japan, Egyptian Petroleum Research Institute (EPRI), Nasr City, Cairo, 11727, Egypt; Tawfik A., Water Pollution Research Department, National Research Centre (NRC), Giza, 12622, Egypt; Safwat N.A., The Regional Center for Mycology and Biotechnology (RCMB), Al-Azhar University, Cairo, Egypt; Mostafa B.B., Environmental Research Department, Theodor Bilharz Research Institute (TBRI), Giza, 12411, Egypt; El-Safty S.A., National Institute for Materials Science (NIMS), 1-2-1 Sengen, Ibaraki-ken, Tsukubashi, 305-0047, Japan

Abstract

Nano iron oxide has shown great potential to function as a universal and low-cost antimicrobial agent. In this work, we fabricated a new class of mesoporous hexagon magnetic iron oxide nanosheets (HMI-NS) modified by 3-aminopropyltriethoxysilane (APTES) through a simple synthesis route as a novel vehicle tracking building (VTB) antimicrobial agent. The VTB-MHI-NSs had a uniform platform-like structure with an average size of 45 nm and well-scattered active sites in the inner core and saline shell with microbicidal effect. Tests revealed that the modification of iron oxide nanosheets caused an improvement in antimicrobial activity against bacteria and fungi. The developed bioactive behavior of The VTB-MHI-NSs can be due to the system architectures, arrangement of crystal atomic-scale, and mesopore windows. This organically functionalized tailoring of The VTB-MHI-NSs can influence the particle size, shape, and surface properties, thereby creating significant extracellular interactions and exerting intracellular effects that cause antimicrobial activity. The appropriate functionalization of the hexagonal outer surface of the mesopore windows enabled the modulation of loading and microbial cell interaction and played a key role in offering sustained platform-like nanosheets that attached to the microbe, causing cell death. Therefore, the mesoporous organic functionalized hexagon iron oxide nanosheets can be considered in water future clean-up processes. © 2022 Elsevier B.V.

Keywords

Antimicrobial; Hexagon Fe<sub>3</sub>O<sub>4</sub>; Nanosheets; Treatment; Wastewater

Citation Information

Scopus Citations: 7

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