Engineered Nanomaterials for Environmental and Health Applications: Third Edition

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Environmental Nanoscience and Nanotechnology".

Deadline for manuscript submissions: 11 July 2025 | Viewed by 544

Special Issue Editors


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Guest Editor
Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania Luigi Vanvitelli, 81100 Caserta, Italy
Interests: environmental pollutants; nanomaterials; genetic ecotoxicology; sperm DNA damage; anti-genotoxicity; cell death (apoptosis)
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Guest Editor
Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania Luigi Vanvitelli, 81100 Caserta, Italy
Interests: reproductive toxicology; genotoxicity; antigenotoxicity; cytogenetics; cellular and molecular biology; male and female infertility
Special Issues, Collections and Topics in MDPI journals

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Guest Editor Assistant
Department of Environmental, Biological and Pharmaceutical Sciences and Technologies (DiSTABIF), University of Campania Luigi Vanvitelli, Via Vivaldi, 43, 81100 Caserta, Italy
Interests: reproductive toxicology; genotoxicity; antigenotoxicity; cytogenetics; male and female infertility

Special Issue Information

Dear Colleagues,

Over the last few decades, due to the intensive development of nanotechnology, engineered nanomaterials (ENMs) have been released, intentionally or accidentally, into the environment. The number of ecotoxicological studies on ENMs has rapidly increased over the past few years, and they have raised several critical issues.

On the other hand, the application of nanotechnology in the environment includes the use of ENMs to clean up polluted media, such as soil, water, air, groundwater, and wastewater (nanoremediation).

Nanotechnologies also have the potential to pose disadvantages as well as confer benefits in terms of human exposure to new nanomaterials. ENMs influence human safety through environmental pollution, unintentional exposure (e.g., due to pollution or exposure at the workplace), and purposeful exposure by the intended application (nanomedicine).

The objective of this Special Issue of Nanomaterials is to highlight advances in environmental and health applications of ENMs. Topics of particular interest include the following:

  • The influence of ENMs on environmental pollution and associated organisms;
  • Sustainable (nano)solutions for environmental remediation;
  • Effects of exposure to ENMs on human health;
  • New ENMs for the diagnosis, prevention, and treatment of disease;
  • ENMs for the identification of disease biomarkers.

This Special Issue is an extension of previous ones. It aims to enrich the collection of articles on the topics already proposed with the further purpose of informing studies and their results on the effects of nanoparticles in combination with other contaminants.

Dr. Lucia Rocco
Dr. Filomena Mottola
Guest Editors

Ilaria Palmieri
Guest Editor Assistant

Manuscript Submission Information

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Keywords

  • engineered nanomaterials
  • nanotechnology
  • human health
  • environmental health and safety
  • nanoremediation
  • ecosafety
  • nanotoxicity

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Published Papers (1 paper)

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Research

29 pages, 4527 KiB  
Article
Fast Kinetic Response and Efficient Removal of Methyl Blue and Methyl Green Dyes by Functionalized Multiwall Carbon Nanotubes Powered with Iron Oxide Nanoparticles and Citrus reticulata Peel Extract
by Erich V. Manrique-Castillo, Mercedes del Pilar Marcos-Carrillo, Noemi-Raquel Checca-Huaman, Bruno L. D. Santos, Waldemar A. A. Macedo, César A. Barrero Meneses, Edson C. Passamani, Jean-Marc Greneche and Juan A. Ramos-Guivar
Nanomaterials 2025, 15(8), 603; https://doi.org/10.3390/nano15080603 - 14 Apr 2025
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Abstract
Maghemite nanoparticles (NPs) were successfully developed using phenolic-rich extracts (cyanidin) from Citrus reticulata peel residues. The 11 nm maghemite NPs, obtained at 3% w/v and at 353 K, presented the optimal synthesis conditions. To improve dye adsorption performance, the synergetic adsorption [...] Read more.
Maghemite nanoparticles (NPs) were successfully developed using phenolic-rich extracts (cyanidin) from Citrus reticulata peel residues. The 11 nm maghemite NPs, obtained at 3% w/v and at 353 K, presented the optimal synthesis conditions. To improve dye adsorption performance, the synergetic adsorption behavior between these 11 nm NPs and multiwall carbon nanotubes was demonstrated. Prior to the adsorption tests, the aging effect on NPs was carefully assessed using various analytical techniques, which clearly showed the magnetite–maghemite phase transition. However, this had no impact on the cyanidin coating or adsorption properties. A remarkable percentage removal of (93 ± 3)% for methylene blue and (84 ± 3)% for methylene green was achieved in short equilibrium times of 10 and 25 min, respectively, with an optimum pH value of 5.5. Reuse experiments revealed that 90% removal for both dyes was achieved between the second to seventh regeneration cycles. Organic loading during these cycles was effectively confirmed by X-ray photoelectron spectroscopy and magnetic measurements. Dye adsorption involves a two-step mechanism: (i) electrostatic adsorption by the negative surface groups of the adsorbent (isoelectric point of 5.2) and the dye cationic groups and (ii) π–π stacking interactions between the aromatic benzene rings of the dyes, the hexagonal skeleton of the multiwall carbon nanotubes, and the phenolic ring groups of the biosynthesized sample. These results suggest that the low-cost modified phenolic adsorbent can be successfully applied to dye removal from water with promising recycling properties. Full article
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