Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
4.7
3.5
Journals
Processes
Special Issues
Micro and Nanotechnology: Application in Surface Modification
share announcement

Micro and Nanotechnology: Application in Surface Modification

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Chemical Processes and Systems".

Deadline for manuscript submissions: closed (30 September 2021) | Viewed by 25750

Special Issue Editors

Dr. Kosmas Ellinas

E-Mail Website
Guest Editor
Department of Food Science and Nutrition, University of the Aegean, Metropolite Ioakeim 2, 81400 Myrina, Lemnos, Greece
Interests: functional and “smart” materials; applications of nanotechnology in food science; wetting control and superhydrophobicity and applications in food science; novel diagnostic tools for food safety and quality monitoring
Special Issues, Collections and Topics in MDPI journals
Dr. Panagiotis Dimitrakellis

E-Mail Website
Guest Editor
Delaware Energy Institute, University of Delaware, 221 Academy Street, Newark, DE 19716, USA
Interests: nonthermal plasma processing; plasma polymerization; oxidative processes; functionalization of biomass; plastics and nanocomposites; advanced biointerfaces

Special Issue Information

Dear Colleagues,

Surface modification is crucial to numerous advanced applications, such as superhydrophobic and self-cleaning surfaces, anti-biofouling and antibacterial coatings, dropwise condensation, packaging materials, sensors, nanocatalysts, and photonics. All these applications require precise surface engineering that in most cases is accomplished via structuring at the micro and nano scale or coatings with micro and/or nano features. Accordingly, several top-down and bottom-up processes have been developed, yet these new functionalities have imposed new requirements for surface engineering. In this Special Issue, we aim to collect high-quality and recent research studies in surface modification using micro- and nanotechnology-based processes towards the fabrication of the next generation of functional surfaces with improved performance and durability. This Issue seeks to present some of the most novel processing methods currently employed in surface engineering, e.g., plasma processing, electroplating, spray-coating, self-assembly methods, as well as atomic layer etching and deposition. Furthermore, we seek to present perspectives and challenges in the field, so all kinds of contributions (letters, review papers, and research papers) are welcome.

Dr. Kosmas Ellinas
Dr. Panagiotis Dimitrakellis
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. Processes 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 2400 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 (7 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

Jump to: Review

15 pages, 2732 KiB  
Article
Modelling of Applied Magnetic Field and Thermal Radiations Due to the Stretching of Cylinder
by Muhammad Tamoor, Muhammad Kamran, Sadique Rehman, Aamir Farooq, Rewayat Khan, Jung Rye Lee and Dong Yun Shin
Processes 2021, 9(6), 1077; https://0-doi-org.brum.beds.ac.uk/10.3390/pr9061077 - 21 Jun 2021
Cited by 4 | Viewed by 1696
Abstract
In this study, a numerical approach was adopted in order to explore the analysis of magneto fluid in the presence of thermal radiation combined with mixed convective and slip conditions. Using the similarity transformation, the axisymmetric three-dimensional boundary layer equations were reduced to [...] Read more.
In this study, a numerical approach was adopted in order to explore the analysis of magneto fluid in the presence of thermal radiation combined with mixed convective and slip conditions. Using the similarity transformation, the axisymmetric three-dimensional boundary layer equations were reduced to a self-similar form. The shooting technique, combined with the Range–Kutta–Fehlberg method, was used to solve the resulting coupled nonlinear momentum and heat transfer equations numerically. When physically interpreting the data, some important observations were made. The novelty of the present study lies in finding help to control the rate of heat transfer and fluid velocity in any industrial manufacturing processes (such as the cooling of metallic plates). The numerical results revealed that the Nusselt number decrease for larger Prandtl number, curvature, and convective parameters. At the same time, the skin friction coefficient was enhanced with an increase in both slip velocity and convective parameter. The effect of emerging physical parameters on velocity and temperature profiles for a nonlinear stretching cylinder has been thoroughly studied and analyzed using plotted graphs and tables. Full article
(This article belongs to the Special Issue Micro and Nanotechnology: Application in Surface Modification)
►▼ Show Figures

Figure 1

16 pages, 17259 KiB  
Article
Droplet Dynamics on a Wettability Patterned Surface during Spray Impact
by Tibin M. Thomas, Imdad Uddin Chowdhury, K. Dhivyaraja, Pallab Sinha Mahapatra, Arvind Pattamatta and Manish K. Tiwari
Processes 2021, 9(3), 555; https://0-doi-org.brum.beds.ac.uk/10.3390/pr9030555 - 22 Mar 2021
Cited by 8 | Viewed by 4004
Abstract
Wettability patterning of a surface is a passive method to manipulate the flow and heat transport mechanism in many physical processes and industrial applications. This paper proposes a rational wettability pattern comprised of multiple superhydrophilic wedges on a superhydrophobic background, which can continuously [...] Read more.
Wettability patterning of a surface is a passive method to manipulate the flow and heat transport mechanism in many physical processes and industrial applications. This paper proposes a rational wettability pattern comprised of multiple superhydrophilic wedges on a superhydrophobic background, which can continuously remove the impacted spray droplets from the horizontal surface. We observed that the spray droplets falling on the superhydrophilic wedge region spread and form a thin liquid film, which is passively transported away from the surface. However, most of the droplets falling on the superhydrophobic region move towards the wedge without any flooding. The physics of the passive transport of the liquid film on a wedge is also delved into using numerical modelling. In particular, we elucidate the different modes of droplet transport in the superhydrophobic region and the interaction of multiple droplets. The observed droplet dynamics could have profound implications in spray cooling systems and passive removal of liquid from a horizontal surface. This study’s findings will be beneficial for the optimization of efficient wettability patterned surfaces for spray cooling application. Full article
(This article belongs to the Special Issue Micro and Nanotechnology: Application in Surface Modification)
►▼ Show Figures

Figure 1

17 pages, 4639 KiB  
Article
Fluorescence Enhancement on Silver-Plated Plasma Micro-Nanostructured 3D Polymeric Microarray Substrates for Multiplex Mycotoxin Detection
by Georgios Koukouvinos, Chrysoula-Evangelia Karachaliou, Anastasia Kanioura, Katerina Tsougeni, Evangelia Livaniou, Sotirios Elias Kakabakos and Panagiota Sotirios Petrou
Processes 2021, 9(2), 392; https://0-doi-org.brum.beds.ac.uk/10.3390/pr9020392 - 21 Feb 2021
Cited by 8 | Viewed by 1951
Abstract
Oxygen plasma micro-nanostructured poly(methyl methacrylate) (PMMA) slides were modified through silver microparticle deposition to create microarray substrates that enhance the emitted fluorescence intensity. Silver deposition relied on a commercially available reagent and was completed in two 30-min incubation cycles of the substrate with [...] Read more.
Oxygen plasma micro-nanostructured poly(methyl methacrylate) (PMMA) slides were modified through silver microparticle deposition to create microarray substrates that enhance the emitted fluorescence intensity. Silver deposition relied on a commercially available reagent and was completed in two 30-min incubation cycles of the substrate with the reagent. The fluorescence enhancement achieved using these substrates over flat PMMA slides was determined through the development of a microarray for the multiplexed detection of four mycotoxins, aflatoxin B1, ochratoxin A, fumonisin B1, and deoxynivalenol. It was shown that the implementation of silver-plated oxygen plasma micro-nanotextured PMMA substrates increased the signals obtained for aflatoxin B1 and ochratoxin A by approximately 2.8 times, 5.6 times for deoxynivalenol, and 16-times for fumonisin B1, compared to flat PMMA substrates. Most notably, this signal increase was not accompanied by a significant increase in the non-specific signal. In addition, the spot repeatability both across a single slide as well as between different slides was high, with coefficients of variation lower than 12%. The slides were also stable for at least three months, thus offering a microarray substrate with improved properties compared to standard glass slides, regarding both the absolute spot fluorescence intensity and between spots repeatability. Full article
(This article belongs to the Special Issue Micro and Nanotechnology: Application in Surface Modification)
►▼ Show Figures

Figure 1

9 pages, 2057 KiB  
Article
Surface Modification of Bombyx mori Silk Fibroin Film via Thiol-ene Click Chemistry
by Xiaoning Zhang, Jianwei Liang, Zhenyu Chen, Carrie Donley, Xiaolin Zhang and Guotao Cheng
Processes 2020, 8(5), 498; https://0-doi-org.brum.beds.ac.uk/10.3390/pr8050498 - 25 Apr 2020
Cited by 9 | Viewed by 2952
Abstract
The purpose of this work is to develop a strategy for the surface modification of Bombyx mori silk fibroin (SF) film, via a thiol-ene click reaction, in order to expand its potential applicability. To achieve this goal, terminal thiol groups, from reduced glutathione, [...] Read more.
The purpose of this work is to develop a strategy for the surface modification of Bombyx mori silk fibroin (SF) film, via a thiol-ene click reaction, in order to expand its potential applicability. To achieve this goal, terminal thiol groups, from reduced glutathione, were introduced onto the surface of the SF film via a carbodiimide coupling reaction. These immobilized thiol groups act as robust crosslinkers and allow us to rapidly functionalize the surface with alkene group-containing molecules via ultraviolet (UV) light-initiated thiol-ene click chemistry. The X-ray photoelectron spectroscopy results specifically determined that alkene group-containing molecules and UV illumination are required for the thiol-ene click modification to take place on thiolated SF films. Fourier-transform infrared spectroscopy characterization of SF films indicated that the β-sheet conformation of SF was hampered throughout the modification process. Furthermore, it was found that the processes for thiol-ene click chemistry that took place on the SF film surface did not affect the thermal stability of SF films significantly, indicating the developed strategy preserved the intrinsic properties of the SF film. Taking into account that many alkene-containing molecules are suitable for thiol-ene click chemistry, we see immense potential for the incorporation of SF films into various applications, using this methodology. Full article
(This article belongs to the Special Issue Micro and Nanotechnology: Application in Surface Modification)
►▼ Show Figures

Graphical abstract

Review

Jump to: Research

31 pages, 3651 KiB  
Review
Low-Temperature Atmospheric Pressure Plasma Processes for the Deposition of Nanocomposite Coatings
by Antonella Uricchio and Fiorenza Fanelli
Processes 2021, 9(11), 2069; https://0-doi-org.brum.beds.ac.uk/10.3390/pr9112069 - 18 Nov 2021
Cited by 14 | Viewed by 4169
Abstract
Low-temperature atmospheric pressure (AP) plasma technologies have recently proven to offer a range of interesting opportunities for the preparation of a variety of nanocomposite (NC) coatings with different chemical compositions, structures, and morphologies. Since the late 2000s, numerous strategies have been implemented for [...] Read more.
Low-temperature atmospheric pressure (AP) plasma technologies have recently proven to offer a range of interesting opportunities for the preparation of a variety of nanocomposite (NC) coatings with different chemical compositions, structures, and morphologies. Since the late 2000s, numerous strategies have been implemented for the deposition of this intriguing class of coatings by using both direct and remote AP plasma sources. Interestingly, considerable progress has been made in the development of aerosol-assisted deposition processes in which the use of either precursor solutions or nanoparticle dispersions in aerosol form allows greatly widening the range of constituents that can be combined in the plasma-deposited NC films. This review summarizes the research published on this topic so far and, specifically, aims to present a concise survey of the developed plasma processes, with particular focus on their optimization as well as on the structural and functional properties of the NC coatings to which they provide access. Current challenges and opportunities are also briefly discussed to give an outlook on possible future research directions. Full article
(This article belongs to the Special Issue Micro and Nanotechnology: Application in Surface Modification)
►▼ Show Figures

Figure 1

29 pages, 6249 KiB  
Review
A Review of Fabrication Methods, Properties and Applications of Superhydrophobic Metals
by Kosmas Ellinas, Panagiotis Dimitrakellis, Panagiotis Sarkiris and Evangelos Gogolides
Processes 2021, 9(4), 666; https://0-doi-org.brum.beds.ac.uk/10.3390/pr9040666 - 10 Apr 2021
Cited by 35 | Viewed by 8377
Abstract
Hydrophobicity and superhydrophobicity with self-cleaning properties are well-known characteristics of several natural surfaces, such as the leaves of the sacred lotus plant (Nelumbo nucifera). To achieve a superhydrophobic state, micro- and nanometer scale topography should be realized on a low surface [...] Read more.
Hydrophobicity and superhydrophobicity with self-cleaning properties are well-known characteristics of several natural surfaces, such as the leaves of the sacred lotus plant (Nelumbo nucifera). To achieve a superhydrophobic state, micro- and nanometer scale topography should be realized on a low surface energy material, or a low surface energy coating should be deposited on top of the micro-nano topography if the material is inherently hydrophilic. Tailoring the surface chemistry and topography to control the wetting properties between extreme wetting states enables a palette of functionalities, such as self-cleaning, antifogging, anti-biofouling etc. A variety of surface topographies have been realized in polymers, ceramics, and metals. Metallic surfaces are particularly important in several engineering applications (e.g., naval, aircrafts, buildings, automobile) and their transformation to superhydrophobic can provide additional functionalities, such as corrosion protection, drag reduction, and anti-icing properties. This review paper focuses on the recent advances on superhydrophobic metals and alloys which can be applicable in real life applications and aims to provide an overview of the most promising methods to achieve sustainable superhydrophobicity. Full article
(This article belongs to the Special Issue Micro and Nanotechnology: Application in Surface Modification)
►▼ Show Figures

Figure 1

14 pages, 1298 KiB  
Review
Functional Properties of Biopolymer-Based Films Modified with Surfactants: A Brief Review
by Ahmad Adlie Shamsuri and Siti Nurul Ain Md. Jamil
Processes 2020, 8(9), 1039; https://0-doi-org.brum.beds.ac.uk/10.3390/pr8091039 - 26 Aug 2020
Cited by 27 | Viewed by 4445
Abstract
An increase of environmental awareness recently has increased the interest of researchers in using of biopolymer-based films. The films have been prepared extensively by utilizing starch, carboxymethyl cellulose, chitosan, protein, gelatin, carrageenan, alginate, pectin, guar gum and pullulan. They are typically modified with [...] Read more.
An increase of environmental awareness recently has increased the interest of researchers in using of biopolymer-based films. The films have been prepared extensively by utilizing starch, carboxymethyl cellulose, chitosan, protein, gelatin, carrageenan, alginate, pectin, guar gum and pullulan. They are typically modified with surface-active agents (surfactants) such as glycerol monostearate, sucrose ester, sodium stearoyl lactate, sodium dodecyl sulfate, ethyl lauroyl arginate HCl, Span 20 to 80, Tween-20 to 80 and soy lecithin for improving the functional properties of the films. In this brief review, two types of biopolymer-based films that prepared through casting method were categorized, specifically solution- and emulsion-based films. The four types of surfactants, namely non-ionic, anionic, cationic and amphoteric surfactants that are regularly used to modify biopolymer-based films are also described. The functional properties of the films modified with different types of surfactants are briefly reviewed. This study enhances the attraction of researchers in biopolymer-based films and the improvement of new concepts in this niche area. Full article
(This article belongs to the Special Issue Micro and Nanotechnology: Application in Surface Modification)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-7
Back to TopTop