Nano-iron metal and nano-iron oxides are among the most widely used engineered and naturally occurring nanostructures, and the increasing incidence of biological exposure to these nanostructures has raised concerns about their biotoxicity. Reactive oxygen species (ROS)-induced oxidative stress is one of the most accepted toxic mechanisms and, in the past decades, considerable efforts have been made to investigate the ROS-related activities of iron nanostructures. In this review, we summarize activities of nano-iron metal and nano-iron oxides in ROS-related redox processes, addressing in detail the known homogeneous and heterogeneous redox mechanisms involved in these processes, intrinsic ROS-related properties of iron nanostructures (chemical composition, particle size, and crystalline phase), and ROS-related bio-microenvironmental factors, including physiological pH and buffers, biogenic reducing agents, and other organic substances.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9359154 | PMC |
| http://dx.doi.org/10.1016/j.jfda.2014.01.007 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Assessing the efficacy of different nano-iron sources for alleviating alkaline soil challenges in goji berry trees (Lycium barbarum L.).
BMC Plant Biol
November 2024
Department of Plant Production and Genetics, Faculty of Agriculture, Urmia University, Urmia, Iran.
Alkalinity is a significant environmental factor affecting crop production, which is exacerbated by the current climate change scenario. In alkaline soils, iron availability is severely reduced due to its low solubility at high pH levels and bicarbonate concentrations, which hinders plant iron absorption by rendering it inactive. In modern agriculture, green-synthesized nanoparticles have attracted considerable attention due to their environmental compatibility, cost-effectiveness, and enhanced potential for foliar uptake.
View Article and Find Full Text PDFPreparation of High-Purity Nano-Iron Phosphate from Titanium-Extraction Tailings by Co-Leaching Synergetic Ultrasonic-Enhanced Precipitation Process.
Inorg Chem
December 2024
School of Mineral Processing and Bioengineering, Central South University, Changsha 410083, Hunan, China.
The preparation of high-performance electrode materials from metallurgical solid waste is an effective strategy to address current energy and environmental challenges. This study utilizes a mixed acid leaching and ultrasound-assisted precipitation process to extract valuable metallic iron from titanium-extraction tailings (TET) to produce high-purity nano-FePO electrode material precursors with unique crystal structures. A leaching efficiency of 95.
View Article and Find Full Text PDFNew insights into the remediation of chromium-contaminated industrial electroplating wastewater by an innovative nano-modified biochar derived from spent mushroom substrate: Mechanisms, batch study, stability and application.
Chemosphere
November 2024
School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China. Electronic address:
To enhance the adsorption and detoxification capabilities of hexavalent chromium (Cr(VI)) using agricultural spent mushroom substrate (SMS), this study pioneered the preparation of biochar (NBC) from Lentinus edodes spent substrate. Subsequently, nano iron sulfide (FeS) particles were integrated onto NBC with carboxymethyl cellulose (CMC) as a stabilizer, resulting in a novel composite biosorption material, nFeS-BC. The adsorption and reduction potential of both NBC and nFeS-BC against Cr(VI) were evaluated through batch experiments, which identified pH as a critical factor influencing adsorption efficiency.
View Article and Find Full Text PDFAdsorption - Advanced oxidation process (AAOP) for the heavy metals and organic matter removal from leachate using combined filtration -Fenton's and Photo-Fenton's treatment.
J Environ Manage
December 2024
Department of Studies in Microbiology, University of Mysore, Mysuru, 570006, Karnataka, India. Electronic address:
Design of cost - effective filtration unit was carried out to evaluate the efficiency of different filter media made of locally available materials to treat raw leachate. Four different filter media laterites, peat, bagasse and a mixture of all were considered as study filter media for the removal of Zinc, Nickel, Copper and Lead from raw leachate. The reactor exhibited a significant removal efficiency when the three-filter media were combined as a combination.
View Article and Find Full Text PDFVacancy-engineered Mn-doped iron oxide nano-crystals for enhanced sonodynamic therapy through self-supplied oxygen.
Colloids Surf B Biointerfaces
December 2024
Department of Ultrasound, Shanghai Pudong New Area People's Hospital, China. Electronic address:
Sonodynamic therapy (SDT) is a minimally invasive therapeutic approach, that uses ultrasound activating sonosensitizers to generate reactive oxygen species (ROS) for inducing the tumor cell death. However, the SDT is always limited by the dissatisfactory performance of sonosensitizers and hypoxic tumor microenvironment (TME). Nano iron oxide is a narrow bandgap semiconductor material with good biocompatibility.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!