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Nanomaterials
Special Issues
Environmental Applications, Ecological Risks, and Biological Effects of Nanomaterials
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Environmental Applications, Ecological Risks, and Biological Effects of Nanomaterials

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Biology and Medicines".

Deadline for manuscript submissions: closed (31 October 2023) | Viewed by 1553

Special Issue Editor

Prof. Dr. Xuejiao Zhang

E-Mail Website
Guest Editor
Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
Interests: applications of nanotechnology in water treatment; nanotoxicology; biological and ecological effects of nanomaterials

Special Issue Information

Dear Colleagues, 

Thanks to the outstanding physicochemical properties of nanomaterials, they are potential candidates in environmental applications, such as water treatment, soil remediation, clear energy production, and so on. With the ever-increasing production and application demand, especially in the environmental fields, nanomaterials are inevitably released into various environmental media, including water, soil, and air. Subsequently, not only the ecological risks, but also the potential impacts on human health require growing concerns. In particular, understanding the interactions between nanomaterials and biological interfaces, which depend on material properties and environmental conditions, is of great importance.

This Special Issue aims to cover state-of-the-art research on environmental applications, ecological risks, and biological effects of nanomaterials. Original research articles (full papers and communications) and reviews are welcome. Research areas may include (but are not limited to) the following: pollutant removal through adsorption or catalytic degradation, clear water production through membrane technology or solar evaporation, environmental monitoring, ecological risk assessment, toxicological effects on microorganisms, aquatic organisms, plants, mammalian cells, and animals.

Prof. Dr. Xuejiao Zhang
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • nanomaterials
  • environmental applications
  • water treatment
  • soil remediation
  • environmental sensor
  • environmental behavior
  • nanotoxicology
  • biological effect

Published Papers (1 paper)

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Research

16 pages, 5614 KiB  
Article
Characterization of Root and Foliar-Applied Iron Oxide Nanoparticles (α-Fe2O3, γ-Fe2O3, Fe3O4, and Bulk Fe3O4) in Improving Maize (Zea mays L.) Performance
by Nauman Yousaf, Muhammad Ishfaq, Hassan Ali Qureshi, Atif Saleem, Haofeng Yang, Muhammad Fahad Sardar and Chunqin Zou
Nanomaterials 2023, 13(23), 3036; https://0-doi-org.brum.beds.ac.uk/10.3390/nano13233036 - 28 Nov 2023
Cited by 3 | Viewed by 1343
Abstract
Iron (Fe) oxide nanoparticles (NPs) improve crop growth. However, the comparative effect of root and foliar-applied different sources of Fe oxide NPs on plant performance at morphological and physiological levels still needs to be discovered. In this study, we characterized the growth and [...] Read more.
Iron (Fe) oxide nanoparticles (NPs) improve crop growth. However, the comparative effect of root and foliar-applied different sources of Fe oxide NPs on plant performance at morphological and physiological levels still needs to be discovered. In this study, we characterized the growth and physiological responses of hydroponic-cultured maize seedlings to four sources of Fe (i.e., α-Fe2O3, γ-Fe2O3, Fe3O4 NPs, and bulk Fe3O4) and two application methods (root vs. foliar). Results showed that Fe concentration in root and shoot increased by elevating the level of NPs from 100 mg L−1 to 500 mg L−1. Overall, the responses of maize seedlings to different sources of Fe oxide NPs were as follows: Fe3O4 > γ-Fe2O3 > α-Fe2O3 > bulk Fe3O4. The application of Fe at concentrations ranging from 100 mg L−1 to 500 mg L−1 had no significant effects on various growth parameters of maize, including biomass, chlorophyll content, and root length. Iron oxide NPs increased the plant biomass by 23–37% by root application, whereas it was 5–9% by foliar application. Chlorophyll contents were increased by 29–34% and 18–22% by foliar and root applications, respectively. The non-significant response of reactive oxygen species (i.e., superoxide dismutase, catalase, and peroxidase) suggested optimum maize performance for supplementing Fe oxide NPs. A confocal laser scanning microscope suggested that Fe oxide NPs entered through the epidermis and from the cortex to the endodermis. Our results provide a scientific basis that the root application of Fe3O4 at the rate of 100 mg L−1 is a promising approach to obtain higher maize performance and reduce the quantity of fertilizer used in agriculture to minimize environmental effects while improving crop productivity and quality. These findings demonstrated the tremendous potential of Fe NPs as an environmentally friendly and sustainable crop approach. Full article
(This article belongs to the Special Issue Environmental Applications, Ecological Risks, and Biological Effects of Nanomaterials)
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