Superparamagnetic Properties and Significant Applications of Iron Oxide Nanoparticles for Astonishing Efficacy—a Review

Harnessing the Intriguing Properties of Magnetic Nanoparticles to Detect and Treat Bacterial Infections

“…In the past few decades, MNPs have been considered as highly promising supporting materials and have been utilized in the bacterial detection and antibacterial therapies fields. Their wide application is mainly from their unique physical properties, including magnetic properties [23][24][25], structural properties [26], and the feature of easy modification [27].…”

“…Moreover, the properties of nanosized magnetic particles are different from those of the corresponding conventional magnetic materials [29][30][31]. In particular, MNPs with a core size ranging between 10 and 100 nm in diameter, exhibit special magnetic properties called "superparamagnetism" [23,24]. Superparamagnetic nanoparticles can induce magnetic resonance (MR) relaxation, which results in their application as contrast agents in magnetic resonance imaging (MRI) [32,33].…”

“…MNPs, including Fe, Co, Ni, and Mn, show great potential for antibacterial applications due to their unique structural properties. The size of the MNPs is one of the important parameters for determining the properties of MNPs [23], and it can be controlled by varying different reaction parameters, including the precursor concentration, type of surfactant, reaction temperature, and time [25]. For example, MNPs with a size between 10 to 100 nm show excellent relaxation performance and photothermal properties [24,38].…”

Insights for the Valorization of Biomass from Portuguese Invasive Acacia spp. in a Biorefinery Perspective

“…The addition of silver nanoparticles prepared this way enhanced the sensitivity of the fabricated electrode towards the oxidation of both dopamine and hydrogen peroxide, which occurred at a physiological pH, by a diffusion-controlled process, and with a linear increase in peak current with different concentrations of both products [139]. A. mearnsii Tannin extract from bark Stabilizer for low-density polyethylene films [129] Superparamagnetic nanoparticles [130] Nanocellulose films [131] Nanofiber membranes [132] Encapsulated nanoparticles [133] Lactic-co-glycolic acid microparticles drug carriers [134] Spent bark from tannin production Filler in polypropylene composites [135] Cellulose nanocrystals [136] Adsorbent (dyes) [137] Biochar from woodchips (activated) Adsorbent (ammonium) [138] A. melanoxylon Water extract from leaves Colloidal silver nanoparticles [139] A. saligna Silver nanoparticles from water leaves extract Adsorbent (dyes) [140] Water leaves extract Corrosion inhibitor [141] Superparamagnetic nanoparticles based on a core consisting of iron oxides can have relevant applications, such as biomedical uses as drug delivery systems or as adsorbents to remove pollutants from wastewaters [142]. Research for the preparation of these materials in an eco-friendly way is important for the sustainability of the process, and the use of green processes and biobased nanoparticles were investigated by Khan et al [130], using a tannin extract of A. mearnsii.…”

Preparation of Large-Size, Superparamagnetic, and Highly Magnetic Fe3O4@PDA Core–Shell Submicrosphere-Supported Nano-Palladium Catalyst and Its Application to Aldehyde Preparation through Oxidative Dehydrogenation of Benzyl Alcohols

“…Fe 3 O 4 nanoparticles have been used extensively in many fields due to their superior magnetic properties [1,2,3,4,5] and microwave absorption function [6,7,8,9]. Compared with other metal nanoparticles, the preparation of Fe 3 O 4 nanoparticles is simple, and the materials used are inexpensive and easily available.…”