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Nanoparticles: Properties, Applications and Toxicities

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Nanomaterials and Nanotechnology".

Deadline for manuscript submissions: closed (20 February 2024) | Viewed by 7285

Special Issue Editor


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Guest Editor
Department of Chemistry, Indian Institute of Technology, Banaras Hindu University, Varanasi, India
Interests: organotrialkoxysilane and organo-amine functionalized metal nanoparticles; electrochemical sensors; organically modified silicate; self-assembling nanofluid; electrocatalysis; mediated bioelectrochemistry; metal ceramics hybrid; nanoparticle-siloxane nanofluid; polymer-nanoparticles nanofluid
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Special Issue Information

Dear Colleagues,

The specific functionality of nanoparticles and nanomaterials adds an extra challenge in designing materials at the nanoscale for a variety of specific applications. This Special Issue will focus on new developments in the synthesis of functional nanoparticles and nanomaterials and complex characterization of structured nanoparticles and their composites with outstanding promising properties for specific applications. The control of NPs’ crystal structure is conducted by applying several synthesis methods, allowing for the design and production of both porous and active non-porous materials at nanoscale with exceptional properties. The applied type of confinement leads to the possible tailoring of various physico-chemical properties typical at the nanoscale, such as surface functionalization and conjugation and high stability. This Special Issue is focused on the synthesis, characterization and applications of such nanoparticles tailored with different chemicals with enhanced stability and dispersibility in organic and inorganic solvents. Surface functionalized nanoparticles can be employed as per requirement in any field such as biomedical, energy generation, catalysis, photonics, sensor development, photodynamic therapy, drug delivery, imaging and energy storage. Further, this Special Issue will provide readers with up-to-date information on the recent progress in the synthesis methods of metal and non-metal nanoparticles from different perspectives of biomedicine, various materials sciences, catalysis, energy conversion, and sensorics.

The Special Issue will cover topics including, but not limited to:

  • Synthesis (e.g., green synthesis, organic, inorganic and routes of surface functionalization with a special emphasis on the role of silica);
  • Catalysis (e.g., homogeneous, water splitting and hydrogen energy, CO2 reduction, biocatalysis, heterogeneous wastewater treatment);
  • Energy (e.g., fuels, renewable energy, fuel cells, photovoltaics, energy conversion, energy carriers);
  • Applications (e.g., electronics, dyes, coatings, consumer products, photocatalysis, pharmaceuticals, preservatives, building materials, cytotoxicity, cell nanomaterial interaction and drug delivery).

The goal for this Special Issue is to describe the recent developments of this rapidly developing interdisciplinary research field. Therefore, we invite you to submit manuscripts for this Special Issue. Full papers, communications, and reviews are all welcome.

Prof. Dr. Prem C. Pandey
Guest Editor

Manuscript Submission Information

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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. Materials 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 2600 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

  • organotrialkoxysilane capped nanoparticles
  • metal nanowires and applications
  • self-assembling nanofluid
  • antimicrobial metal nanoparticles
  • bioelectrochemistry
  • metal nanoparticle-cell interaction
  • photodynamic application of metal nanoparticles
  • photovoltaics and sensorics
  • anti-cancerous activity and cell toxicity
  • fluorescent nanoparticles and applications

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Published Papers (4 papers)

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Editorial

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6 pages, 210 KiB  
Editorial
Properties, Applications and Toxicities of Organotrialkoxysilane-Derived Functional Metal Nanoparticles and Their Multimetallic Analogues
by Prem C. Pandey
Materials 2023, 16(5), 2052; https://doi.org/10.3390/ma16052052 - 2 Mar 2023
Cited by 3 | Viewed by 1291
Abstract
Sol–gel chemistry offers a very unique tool for nanoscale mastering of material preparation from metal alkoxides [...] Full article
(This article belongs to the Special Issue Nanoparticles: Properties, Applications and Toxicities)

Research

Jump to: Editorial

20 pages, 4057 KiB  
Article
Assessing Microplastics and Nanoparticles in the Surface Seawater of Venice Lagoon—Part I: Methodology of Research
by Teresa Cecchi, Davide Poletto, Andrei Constantin Berbecaru, Elfrida Mihaela Cârstea and Maria Râpă
Materials 2024, 17(8), 1759; https://doi.org/10.3390/ma17081759 - 11 Apr 2024
Viewed by 1490
Abstract
Microplastics (MPs) and nanoplastics (NPs) both represent significant concerns in environmental sciences. This paper aims to develop a convenient and efficient methodology for the detection and measurement of MPs and nanoparticles from surface seawater and to apply it to the water samples collected [...] Read more.
Microplastics (MPs) and nanoplastics (NPs) both represent significant concerns in environmental sciences. This paper aims to develop a convenient and efficient methodology for the detection and measurement of MPs and nanoparticles from surface seawater and to apply it to the water samples collected from the UNESCO site of Venice and its lagoon, more precisely in the Venice-Lido Port Inlet, Grand Canal under Rialto Bridge, and Saint Marc basin. In this study, MPs were analyzed through optical microscopy for their relative abundance and characterized based on their color, shape, and size classes, while the concentration and the mean of nanoparticles were estimated via the Nanoparticle Tracking Analysis technique. Bulk seawater sampling, combined with filtration through a cascade of stainless-steel sieves and subsequent digestion, facilitates the detection of MPs of relatively small sizes (size classes distribution: >1 mm, 1000–250 μm, 250–125 μm, 125–90 μm, and 90–32 μm), similar to the size of MPs ingested by marine invertebrates and fishes. A protocol for minimizing interference from non-plastic nanoparticles through evaporation, digestion, and filtration processes was proposed to enrich the sample for NPs. The findings contribute to the understanding of the extent and characteristics of MPs and nanoparticle pollution in the Venice Lagoon seawater, highlighting the potential environmental risks associated with these pollutants and the need for coordinated approaches to mitigate them. This article is based on scientific research carried out within the framework of the H2020 In-No-Plastic—Innovative approaches towards prevention, removal and reuse of marine plastic litter project (G.A. ID no. 101000612). Full article
(This article belongs to the Special Issue Nanoparticles: Properties, Applications and Toxicities)
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18 pages, 2686 KiB  
Article
A Comprehensive Assessment of the Biocompatibility and Safety of Diamond Nanoparticles on Reconstructed Human Epidermis
by Wiktoria Fraczek, Kacper Kregielewski, Mateusz Wierzbicki, Patryk Krzeminski, Katarzyna Zawadzka, Jaroslaw Szczepaniak and Marta Grodzik
Materials 2023, 16(16), 5600; https://doi.org/10.3390/ma16165600 - 12 Aug 2023
Cited by 3 | Viewed by 1596
Abstract
Diamond nanoparticles, also known as nanodiamonds (NDs), exhibit remarkable, awe-inspiring properties that make them suitable for various applications in the field of skin care products. However, a comprehensive assessment of their compatibility with human skin, according to the irritation criteria established by the [...] Read more.
Diamond nanoparticles, also known as nanodiamonds (NDs), exhibit remarkable, awe-inspiring properties that make them suitable for various applications in the field of skin care products. However, a comprehensive assessment of their compatibility with human skin, according to the irritation criteria established by the Organization for Economic Cooperation and Development (OECD), has not yet been conducted. The purpose of this study was to evaluate if diamond nanoparticles at a concentration of 25 μg/mL, incubated with reconstituted human epidermis (EpiDermTM) for 18 h, conform to the OECD TG439 standard used to classify chemical irritants. For this purpose, a cell viability test (MTT assay), histological assessment, and analysis of pro-inflammatory cytokine expression were performed. The results indicated that NDs had no toxic effect at the tested concentration. They also did not adversely affect tissue structure and did not lead to a simultaneous increase in protein and mRNA expression of the analyzed cytokines. These results confirm the safety and biocompatibility of NDs for application in skincare products, thereby creating a wide range of possibilities to exert an impact on the advancement of contemporary cosmetology in the future. Full article
(This article belongs to the Special Issue Nanoparticles: Properties, Applications and Toxicities)
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16 pages, 3077 KiB  
Article
Neutral Oil-Incorporated Liposomal Nanocarrier for Increased Skin Delivery of Ascorbic Acid
by Myoung Jin Ho, Hyun Jin Park and Myung Joo Kang
Materials 2023, 16(6), 2294; https://doi.org/10.3390/ma16062294 - 13 Mar 2023
Cited by 1 | Viewed by 1894
Abstract
In this study, a neutral oil-incorporated liposomal system (lipo-oil-some, LOS) was designed to improve the skin absorption of ascorbic acid (Vit C), and the effects of an edge activator and neutral oil on the skin absorption of Vit C were evaluated. As components [...] Read more.
In this study, a neutral oil-incorporated liposomal system (lipo-oil-some, LOS) was designed to improve the skin absorption of ascorbic acid (Vit C), and the effects of an edge activator and neutral oil on the skin absorption of Vit C were evaluated. As components of the LOS system, sodium deoxycholate, polysorbate 80, and cholesterol were screened as edge activators, and camellia oil, tricaprylin, and grapeseed oil were employed as neutral oils. The LOS systems prepared by the ethanol injection method were spherical in shape, 130–350 nm in size, and had 4–27% Vit C loading efficiency (%). In a skin absorption study using a Franz diffusion cell mounted with porcine skin, the LOS system prepared with sodium deoxycholate (10 w/w% of phospholipid) exhibited 1.2-and 2.9-fold higher absorption than those prepared with polysorbate 80 and cholesterol, respectively. Moreover, the type of neutral oil had a marked effect on the absorption of Vit C; the liposomal system containing camellia oil provided 1.3 to 1.8 times higher flux (45.4 μg/cm2∙h) than vesicles with tricaprylin or grapeseed oil, respectively. The optimized lipid nanocarrier is expected to be a promising tool for promoting the skin absorption of Vit C and improving its dermatological functions. Full article
(This article belongs to the Special Issue Nanoparticles: Properties, Applications and Toxicities)
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