The Potential of Fe‐Based Magnetic Nanomaterials for the Agriculture Sector

Abstract

Iron‐based magnetic nanoparticles (MNPs) have been studied extensively for the past few decades. They have been applied in various applications, particularly in the biomedical sector. Due to their excellent physical and chemical properties, they have also been used widely in the agricultural sector. MNPs can be synthesized inexpensively and applied in large scale agricultural activities. This paper highlights the applications of iron‐based MNPs in the agricultural sector mainly as antimicrobial agents, plant growth promoters, site‐targeted delivery agents, nanosensors, detection and remediation for pesticide residue. Furthermore, the toxicity and transport of iron‐based MNPs in the soil‐plant system are also elucidated. These aspects have to be well‐understood before MNPs can be fully implemented effectively this pin the agricultural sector. Lastly, a hybrid nanomaterial, which is consisted of iron and magnesium oxide (MgO) nanoparticles (NPs), is proposed. This hybrid nanomaterial is expected to overcome the shortcomings of iron‐based MNPs.

Potential Effects of Metal Oxides on Agricultural Production of Rice: A Mini Review

“…Although the current iron oxide nanoparticle pollution in rice farming is not serious [ 39 , 40 , 41 , 42 ], there have only been a few studies compared to other crops, and more thorough investigations are required to broaden the research’s focus and depth.…”

Synthesis and Antifungal Evaluation of Magnetic Magnesium Oxide Nanoparticles Against Fusarium Oxysporum

“…This indicates that the antifungal properties against F. oxysporum are due to m-MgO NPs. The release of Fe and Mg metal ions from the m-MgO NPs into fungus cell generates oxidative stress, leading to the inhibition of fungus growth [7]. Since both MgO and Fe2O3 NPs exhibit great antifungal activity, their combination, m-MgO NPs, is expected to demonstrate better antifungal activity.…”

“…This provides more effective and efficient disease treatment, as a higher concentration of NPs can be transported to the infected spot in a shorter time. The combination of iron oxide NPs and MgO NPs is known as a hybrid NPs, which have the potential and ability to overcome the limits of single component particles [7]. This is strong evidence to prove that magnetic MgO NPs (m-MgO NPs) have the potential to be developed as an antimicrobial agent for plant disease management.…”

Dual Functions of a Hybrid Magnetic Magnesium Oxide Nanocomposite as a Fungicide and Plant Growth Promoter in Agriculture Applications

“…Besides, n -MgO can promote plant growth because Mg is one of the essential elements required for chlorophyll synthesis. n -MgO are also found to be environmentally friendly because they are nontoxic to the living organisms in soil such as Eisenia Andrei earthworm …”

“…Nanocomposites/hybrid nanomaterials can overcome the limitations of single-component nanomaterials . For example, the magnetic properties could be utilized for several applications such as targeted delivery and magnetic separation. , In addition, iron is an essential micronutrient for plant growth processes such as respiration, photosynthesis, ribonucleic acid synthesis, lignin formation, enzyme activation, and nitrogen reduction and fixation . Hence, with the combination of n -MgO and iron oxide, the hybrid magnetic nano-magnesium oxide ( m / n -MgO) has great potential to act as an excellent antimicrobial agent and plant growth promoter for agricultural applications.…”