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Synthesis and Characterization of Nanostructures and Nanomaterials
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Synthesis and Characterization of Nanostructures and Nanomaterials

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Surface Characterization, Deposition and Modification".

Deadline for manuscript submissions: closed (30 November 2021) | Viewed by 10415

Special Issue Editor

Dr. Fariborz Tavangarian

E-Mail Website
Guest Editor
Penn State Harrisburg, Middletown, United States
Interests: nanomaterials; biomaterials; ceramics; tissue engineering
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We would like to invite you to submit your work to this Special Issue on “Synthesis and Characterization of Nanostructures and Nanomaterials”. Nanostructures and nanomaterials have received great attention in the fuel cell, aerospace, automotive, medical, and military industries due to their unique mechanical and physical properties. Nanomaterials exhibit increased strength/hardness, enhanced diffusivity, improved ductility/toughness, reduced density, reduced elastic modulus, increased specific heat and surface, etc. The focus of this Special Issue is on the fabrication and characterization of nanomaterials and nanocomposites for different applications, such as automotive, paint, solar cell, and biomedical applications.

In particular, the topic of interest includes but is not limited to:

  • Bioinspired nanomaterials and nanocomposites;
  • Self-healing nanomaterials and nanocomposites (ceramics and polymers);
  • Smart structures with shape memory capabilities for biomedical applications;
  • Advanced nanostructures with excellent mechanical properties;
  • Additive manufacturing of nanomaterials and nanocomposites;
  • In-vitro evaluation of modified nanoceramics and polymers;
  • Fundamental and novel concepts to synthesis nanomaterials;
  • Carbon nanostructures with biomedical applications;
  • Fabrication and optimization of thin films;
  • Nanostructures in drug delivery systems;
  • Nanobots in biomedical applications.

Dr. Fariborz Tavangarian
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. Coatings is an international peer-reviewed open access monthly 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.

Published Papers (3 papers)

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Research

16 pages, 4143 KiB  
Article
Surface Modification of 316L SS Implants by Applying Bioglass/Gelatin/Polycaprolactone Composite Coatings for Biomedical Applications
by Behzad Mojarad Shafiee, Reza Torkaman, Mohammad Mahmoudi, Rahmatollah Emadi, Maryam Derakhshan, Ebrahim Karamian and Fariborz Tavangarian
Coatings 2020, 10(12), 1220; https://doi.org/10.3390/coatings10121220 - 14 Dec 2020
Cited by 17 | Viewed by 2882
Abstract
In this study, various composites of bioglass/gelatin/polycaprolactone (BG/GE/PCL) were produced and coated on the surface of 316L stainless steel (SS) to improve its bioactivity. X-ray diffractometry (XRD), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) were utilized to characterize the specimens. The [...] Read more.
In this study, various composites of bioglass/gelatin/polycaprolactone (BG/GE/PCL) were produced and coated on the surface of 316L stainless steel (SS) to improve its bioactivity. X-ray diffractometry (XRD), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) were utilized to characterize the specimens. The results showed that bioglass particles were distributed uniformly in the coating. By increasing the wt.% of bioglass in the nanocomposite coatings, the surface roughness and adhesion strength increased. The corrosion behavior of GE/PCL (PCL-10 wt.% gelatin coated on 316L SS) and 3BG/GE/PCL (GE/PCL including 3 wt.% bioglass coated on 316L SS) samples were studied in PBS solution. The results demonstrated that 3BG/GE/PCL sample improved the corrosion resistance drastically compared to the GE/PCL specimen. In vitro bioactivity of samples was examined after soaking the specimens for 7, 14 and 28 days in simulated body fluid (SBF). The results showed a significant apatite formation on the surface of 3BG/GE/PCL samples. The cell viability evaluation was performed using 3- (4, 5-dimethylthiazol-2-yl)-2,5 diphenyltetrazoliumbromide (MTT) tests which confirmed the enhanced cell viability on the surface of 3BG/GE/PCL samples. The in vivo behavior of specimens illustrated no toxicity and inflammatory response and was in a good agreement with the results obtained from the in vitro test. Full article
(This article belongs to the Special Issue Synthesis and Characterization of Nanostructures and Nanomaterials)
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11 pages, 3990 KiB  
Article
Preparation and Characterization of Self-Dispersing Phthalocyanine Blue 15:4 Pigment for Dyeing of Wool Textiles
by Lun Nie, Guangtao Chang and Ruoxin Li
Coatings 2020, 10(8), 741; https://doi.org/10.3390/coatings10080741 - 29 Jul 2020
Cited by 8 | Viewed by 3070
Abstract
A self-dispersing pigment was produced by a diazonium coupling reaction; the pigment reacted with aromatic diazonium salts which were generated by the reaction of p-aminobenzene sulfonic acid and sodium nitrite. The surface of the pigment particles was negatively charged due to sulfonic [...] Read more.
A self-dispersing pigment was produced by a diazonium coupling reaction; the pigment reacted with aromatic diazonium salts which were generated by the reaction of p-aminobenzene sulfonic acid and sodium nitrite. The surface of the pigment particles was negatively charged due to sulfonic acid groups on the pigment surface. The pigment particle size and zeta potential were, respectively, 134.5 nm and −45.4 mV at neutral pH. The wool surface was positively charged by adjusting the pH; then the anionic self-dispersing pigment dyed the cationic wool. The results show that self-dispersing pigment can adhere well without a binder, and that the K/S value is closely related to pH, dyeing time, and the amount of pigment. The color fastness of the wool was good and the light fastness of the wool was grade 5, which is better than acid dyes. Self-dispersing pigments are potential candidates for dyeing high-weather-resistance textiles. Full article
(This article belongs to the Special Issue Synthesis and Characterization of Nanostructures and Nanomaterials)
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15 pages, 4498 KiB  
Article
Hydrothermal Synthesis of Cobalt Ruthenium Sulfides as Promising Pseudocapacitor Electrode Materials
by Ravi Bolagam and Sukkee Um
Coatings 2020, 10(3), 200; https://doi.org/10.3390/coatings10030200 - 25 Feb 2020
Cited by 23 | Viewed by 3940
Abstract
In this paper, we report the successful synthesis of cobalt ruthenium sulfides by a facile hydrothermal method. The structural aspects of the as-prepared cobalt ruthenium sulfides were characterized using X-ray diffraction, X-ray photoelectron spectroscopy, and Raman spectroscopy. All the prepared materials exhibited nanocrystal [...] Read more.
In this paper, we report the successful synthesis of cobalt ruthenium sulfides by a facile hydrothermal method. The structural aspects of the as-prepared cobalt ruthenium sulfides were characterized using X-ray diffraction, X-ray photoelectron spectroscopy, and Raman spectroscopy. All the prepared materials exhibited nanocrystal morphology. The electrochemical performance of the ternary metal sulfides was investigated by cyclic voltammetry (CV), galvanostatic charge-discharge (GCD), and electrochemical impedance spectroscopy techniques. Noticeably, the optimized ternary metal sulfide electrode exhibited good specific capacitances of 95 F g−1 at 5 mV s−1 and 75 F g−1 at 1 A g−1, excellent rate capability (48 F g−1 at 5 A g−1), and superior cycling stability (81% capacitance retention after 1000 cycles). Moreover, this electrode demonstrated energy densities of 10.5 and 6.7 Wh kg−1 at power densities of 600 and 3001.5 W kg−1, respectively. These attractive properties endow proposed electrodes with significant potential for high-performance energy storage devices. Full article
(This article belongs to the Special Issue Synthesis and Characterization of Nanostructures and Nanomaterials)
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