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Recent Insights into Nanoparticles: Design, Synthesis, Characterization, and Applications
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Recent Insights into Nanoparticles: Design, Synthesis, Characterization, and Applications

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Nanochemistry".

Deadline for manuscript submissions: closed (30 June 2023) | Viewed by 37030

Special Issue Editors

Dr. Haitham Kalil

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Guest Editor
Chemistry Department, Cleveland State University, Cleveland, OH, USA
Interests: nanoparticles; oxidative stress; nanomaterial interfaces; reactive oxygen species; biosensors
Dr. Abdullah Ismail El-Falouji

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Guest Editor
Institute of Biotechnology for Postgraduate Studies and Research, Suez Canal University, Ismailia, Egypt
Interests: anticancer; drug design; biomedical applications; molecular biology;nanotechnology
Prof. Dr. Hassan Mohamed Ahmed Hassan

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Guest Editor
Chemistry Department, College of Science, Jouf University, Sakaka 2014, Saudi Arabia
Interests: nanocatalysis; carbon-based nanomaterials; MOFs; graphene; organic transformation catalysts
Special Issues, Collections and Topics in MDPI journals
Dr. Mohamed Khairy

E-Mail Website
Guest Editor
Chemistry Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
Interests: nanomaterials; nanometalic oxides; nanocatalysis; surface characterization; nanocomposites

Special Issue Information

Dear Colleagues,

All aspects of nanoparticles, including their optical, electrical, thermal, mechanical, and biological characteristics, as well as their applications in sensing, biology, optical devices, and imaging, will be covered in the focus issue. Reviews and original research papers on nano-scale biomedical applications that are of interest to readers are all welcomed. The rapid development of nanostructured devices and/or materials is another aspect of this Special Issue (below 100 nm). Topics include, but are not limited to, nanostructures, nanofilms, nanointerfaces, nanomaterials, nanocomposites, and nanotubes.

Dr. Haitham Kalil
Dr. Abdullah Ismail El-Falouji
Prof. Dr. Hassan Mohamed Ahmed Hassan
Dr. Mohamed Khairy
Guest Editors

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. Molecules 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 2700 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

  • nanoparticles
  • nanotechnology
  • nanosensors
  • nanocomposites
  • nanofilms
  • nanoscale
  • nanomaterials
  • nanointerfaces
  • nanochips
  • nanocomplexes

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Published Papers (4 papers)

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Research

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13 pages, 3524 KiB  
Article
Controllable Fabrication of Zn2+ Self-Doped TiO2 Tubular Nanocomposite for Highly Efficient Water Treatment
by Hassan M. A. Hassan, Ibrahim H. Alsohaimi, Amr A. Essawy, Mohamed R. El-Aassar, Mohamed A. Betiha, Alhulw H. Alshammari and Shaimaa K. Mohamed
Molecules 2023, 28(7), 3072; https://doi.org/10.3390/molecules28073072 - 30 Mar 2023
Cited by 4 | Viewed by 1552
Abstract
Tailoring high-efficiency photocatalytic composites for various implementations is a major research topic. 1D TNTs-based nanomaterials show promise as a photocatalyst for the remediation of organic pigments in an aqueous solution. Despite this, TiO2 (TNTs) is only photoactive in the UV range due [...] Read more.
Tailoring high-efficiency photocatalytic composites for various implementations is a major research topic. 1D TNTs-based nanomaterials show promise as a photocatalyst for the remediation of organic pigments in an aqueous solution. Despite this, TiO2 (TNTs) is only photoactive in the UV range due to its inherent restriction on absorption of light in the UV range. Herein, we provide a facile recipe to tailor the optical characteristics and photocatalytic activity of TNTs by incorporating Zn (II) ionic species via an ion-exchange approach in an aqueous solution. The inclusion of Zn (II) ions into the TNTs framework expands its absorption of light toward the visible light range, therefore TiO2 nanotubes shows the visible-light photo-performance. Activity performance on photocatalytic decontamination of RhB at ambient temperature demonstrates that Zn-TNTs offer considerable boosted catalytic performance compared with untreated tubular TiO2 during the illumination of visible light. RhB (10 mg L−1) degradation of around 95% was achieved at 120 min. Radical scavenger experiment demonstrated that when electron (e−) or holes (h+) scavengers are introduced to the photodegradation process, the assessment of decontamination efficacy decreased by 45% and 76%, respectively. This demonstrates a more efficient engagement of the photoexcited electrons over photogenerated holes in the photodegradation mechanism. Furthermore, there seems to be no significant decrease in the activity of the Zn-TNTs after five consecutive runs. As a result, the fabricated Zn-TNTs composite has a high economic potential in the energy and environmental domains. Full article
(This article belongs to the Special Issue Recent Insights into Nanoparticles: Design, Synthesis, Characterization, and Applications)
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20 pages, 6670 KiB  
Article
Biosynthesis of Silver Nanoparticles Utilizing Leaf Extract of Trigonella foenum-graecum L. for Catalytic Dyes Degradation and Colorimetric Sensing of Fe3+/Hg2+
by Monika Moond, Sushila Singh, Seema Sangwan, Parvesh Devi, Anuradha Beniwal, Jyoti Rani, Anita Kumari and Savita Rani
Molecules 2023, 28(3), 951; https://doi.org/10.3390/molecules28030951 - 18 Jan 2023
Cited by 23 | Viewed by 2743
Abstract
The aqueous Trigonella foenum-graecum L. leaf extract belonging to variety HM 444 was used as reducing agent for silver nanoparticles (AgNPs) synthesis. UV–Visible spectroscopy, Particle size analyser (PSA), Field emission scanning electron microscopy coupled to energy dispersive X-ray spectroscopy (FESEM-EDX) and High-resolution transmission [...] Read more.
The aqueous Trigonella foenum-graecum L. leaf extract belonging to variety HM 444 was used as reducing agent for silver nanoparticles (AgNPs) synthesis. UV–Visible spectroscopy, Particle size analyser (PSA), Field emission scanning electron microscopy coupled to energy dispersive X-ray spectroscopy (FESEM-EDX) and High-resolution transmission electron microscopy (HRTEM) were used to characterize AgNPs. Selected area electron diffraction (SAED) confirmed the formation of metallic Ag. Fourier Transform Infrared Spectroscopy (FTIR) was done to find out the possible phytochemicals responsible for stabilization and capping of the AgNPs. The produced AgNPs had an average particle size of 21 nm, were spherical in shape, and monodispersed. It showed catalytic degradation of Methylene blue (96.57%, 0.1665 ± 0.03 min−1), Methyl orange (71.45%, 0.1054 ± 0.002 min−1), and Rhodamine B (92.72%, 0.2004 ± 0.01 min−1). The produced AgNPs were excellent solid bio-based sensors because they were very sensitive to Hg2+ and Fe3+ metal ions with a detection limit of 11.17 µM and 195.24 µM, respectively. From the results obtained, it was suggested that aqueous leaf extract demonstrated a versatile and cost-effective method and should be utilized in future as green technology for the fabrication of nanoparticles. Full article
(This article belongs to the Special Issue Recent Insights into Nanoparticles: Design, Synthesis, Characterization, and Applications)
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14 pages, 4002 KiB  
Article
Highly Efficient Photocatalysts for Methylene Blue Degradation Based on a Platform of Deposited GO-ZnO Nanoparticles on Polyurethane Foam
by Mohamed Morsy, Ahmed I. Abdel-Salam, Islam Gomaa, Hesham Moustafa, Haitham Kalil and Ahmed Helal
Molecules 2023, 28(1), 108; https://doi.org/10.3390/molecules28010108 - 23 Dec 2022
Cited by 11 | Viewed by 2363
Abstract
The demand for reactive dyes in industries has increased rapidly in recent years, and producing a large quantity of dye-containing effluent waste contaminates soils and water streams. Current efforts to remove these harmful dyes have focused on utilizing functionalized nanomaterials. A 3D polyurethane [...] Read more.
The demand for reactive dyes in industries has increased rapidly in recent years, and producing a large quantity of dye-containing effluent waste contaminates soils and water streams. Current efforts to remove these harmful dyes have focused on utilizing functionalized nanomaterials. A 3D polyurethane foam loaded with reduced graphene oxide (rGO) and ZnO nanocomposite (PUF/rGO/ZnO) has been proposed as an efficient structural design for dye degradation under the influence of visible light. The proposed structure was synthesized using a hydrothermal route followed by microwave irradiation. The resultant 3D PUF/rGO/ZnO was examined and characterized by various techniques such as XRD, FTIR, SEM, EDAX, BET, and UV–visible spectroscopy. SEM data illustrated that a good dispersion and embedment of the rGO/ZnO NPs within the PUF matrix occurred. The adsorption capacity for neat PUF showed that around 20% of the Methylene blue (MB) dye was only adsorbed on its surface. However, it was found that an exceptional adsorption capacity for MB degradation was observed when the rGO/ZnO NPs inserted into the PUF, which initially deteriorated to ~ 70 % of its initial concentration. Notably, the MB dye was completely degraded within 3 h. Full article
(This article belongs to the Special Issue Recent Insights into Nanoparticles: Design, Synthesis, Characterization, and Applications)
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Review

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26 pages, 1717 KiB  
Review
Nanotechnology: A Revolution in Modern Industry
by Shiza Malik, Khalid Muhammad and Yasir Waheed
Molecules 2023, 28(2), 661; https://doi.org/10.3390/molecules28020661 - 9 Jan 2023
Cited by 305 | Viewed by 29717
Abstract
Nanotechnology, contrary to its name, has massively revolutionized industries around the world. This paper predominantly deals with data regarding the applications of nanotechnology in the modernization of several industries. A comprehensive research strategy is adopted to incorporate the latest data driven from major [...] Read more.
Nanotechnology, contrary to its name, has massively revolutionized industries around the world. This paper predominantly deals with data regarding the applications of nanotechnology in the modernization of several industries. A comprehensive research strategy is adopted to incorporate the latest data driven from major science platforms. Resultantly, a broad-spectrum overview is presented which comprises the diverse applications of nanotechnology in modern industries. This study reveals that nanotechnology is not limited to research labs or small-scale manufacturing units of nanomedicine, but instead has taken a major share in different industries. Companies around the world are now trying to make their innovations more efficient in terms of structuring, working, and designing outlook and productivity by taking advantage of nanotechnology. From small-scale manufacturing and processing units such as those in agriculture, food, and medicine industries to larger-scale production units such as those operating in industries of automobiles, civil engineering, and environmental management, nanotechnology has manifested the modernization of almost every industrial domain on a global scale. With pronounced cooperation among researchers, industrialists, scientists, technologists, environmentalists, and educationists, the more sustainable development of nano-based industries can be predicted in the future. Full article
(This article belongs to the Special Issue Recent Insights into Nanoparticles: Design, Synthesis, Characterization, and Applications)
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