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Micromachines
Special Issues
Colloidal Particle Array and Device Fabrication
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Colloidal Particle Array and Device Fabrication

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "A：Physics".

Deadline for manuscript submissions: closed (15 February 2021) | Viewed by 5494

Special Issue Editors

Prof. Dr. Dong Kee Yi

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Guest Editor
Department of Chemistry, Myongji University, Yongin 449-728, Republic of Korea
Interests: colloidal nanomaterials; nanohybrid materials; nanobio
Prof. Dr. Georgia C. Papaefthymiou

E-Mail Website
Guest Editor
Department of Physics, Villanova University, Villanova, PA 19085, USA
Interests: magnetic materials; condensed matter physics; nanomaterials
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Sung Jong Yoo

E-Mail Website
Guest Editor
Center for Hydrogen-Fuel Cell Research, Korea Institute of Science and Technology (KIST), Seoul 136-791, Korea
Interests: fuel cells; energy materials; nano catalyst

Special Issue Information

Dear colleagues,

The increasing demand for functional thin films with high flexibility, integrated organic/inorganic nanostructures, and high system stability have led the research community to the development of new methods of thin film fabrication for improved optoelectric, sensing, and energy systems. Since the dimensions of colloid range from 1 to 1000 nm, well-controlled arrays of colloids can give versatile thin films.

Colloidal arrays can be formed into monolayered and multilayered arrays for responding to required various purposes, such as optoelectric devices, optical sensors for bio and chemical species, flexible electronics, and energy devices for energy transforming, conversion, and production.

Colloids can be arrayed at a monolayer fashion onto various substrates using van der Waals interaction, electrostatic stabilization, and geometrical effects. Conventional LB film method and dip-coating protocols are well-known methods to fabricate controlled layers of colloids. Many types of methods for arraying colloids have been suggested, including spin-on casting and drop-casting. Remarkably, the confined convective self-assembly method constitutes a strong protocol for the monolayer arraying of colloids into two dimensional (2D) patterns. The diameter of the colloidal particles can determine the thickness of the monolayered thin film formed.

The purpose of this Special Issue is to publish high-quality research papers and review articles focused on various aspects of colloidal particle array and device fabrication.

Potential topics include, but are not limited to, the following:

  • Colloidal array for sensor developments; bio and chemical sensing devices, artificial nose
  • New methods of colloidal arraying and well-controlled layering approaches
  • Colloidal array and application to energy devices
  • Colloidal template and flexible electronic devices and machines
  • Colloidal assembly with component materials for functionally new integrated systems
  • Colloidal array for biomedical purposes; organ regeneration and in vivo/in vitro biomedical devices
  • Colloidal assembly for superhydrophobic/superhydrophilic surfaces

Prof. Dr. Dong Kee Yi
Prof. Dr. Georgia C. Papaefthymiou
Prof. Dr. Sung Jong Yoo
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. Micromachines 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.

Keywords

  • colloidal array
  • colloidal thin film
  • nanoparticle array
  • sensor
  • energy device
  • biomedical device
  • eco-friendly device

Published Papers (2 papers)

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Research

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9 pages, 4186 KiB  
Article
Monolayer Quantum-Dot Based Light-Sensor by a Photo-Electrochemical Mechanism
by Sitansu Sekhar Nanda, Minjik Kim, Sung Jong Yoo, Georgia C. Papaefthymiou and Dong Kee Yi
Micromachines 2020, 11(9), 817; https://doi.org/10.3390/mi11090817 - 28 Aug 2020
Viewed by 2094
Abstract
Monolayer nanocrystal-based light sensors with cadmium-selenium thin film electrodes have been investigated using electrochemical cyclic voltammetry tests. An indium tin oxide electrode system, with a monolayer of homogeneously deposited cadmium-selenium quantum dots was proven to work as a photo-sensor via an electrochemical cell [...] Read more.
Monolayer nanocrystal-based light sensors with cadmium-selenium thin film electrodes have been investigated using electrochemical cyclic voltammetry tests. An indium tin oxide electrode system, with a monolayer of homogeneously deposited cadmium-selenium quantum dots was proven to work as a photo-sensor via an electrochemical cell mechanism; it was possible to tune current densities under light illumination. Electrochemical tests on a quantum dot capacitor, using different sized (red, yellow and green) cadmium-selenium quantum dots on indium tin oxide substrates, showed typical capacitive behavior of cyclic voltammetry curves in 2M H2SO4 aqueous solutions. This arrangement provides a beneficial effect in, both, charge separation and light sensory characteristics. Importantly, the photocurrent density depended on quantum yield rendering tunable photo-sensing properties. Full article
(This article belongs to the Special Issue Colloidal Particle Array and Device Fabrication)
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Review

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16 pages, 2377 KiB  
Review
Plasmonic Optical Biosensors for Detecting C-Reactive Protein: A Review
by Joo Seon Seok and Heongkyu Ju
Micromachines 2020, 11(10), 895; https://doi.org/10.3390/mi11100895 - 27 Sep 2020
Cited by 19 | Viewed by 2990
Abstract
C-reactive protein (CRP), a potent acute-phase reactant that increases rapidly in response to inflammation, tissue damage or infections, is also considered an indicator of the risk of cardiovascular diseases and neurological disorders. Recent advances in nanofabrication and nanophotonic technologies have prompted the optical [...] Read more.
C-reactive protein (CRP), a potent acute-phase reactant that increases rapidly in response to inflammation, tissue damage or infections, is also considered an indicator of the risk of cardiovascular diseases and neurological disorders. Recent advances in nanofabrication and nanophotonic technologies have prompted the optical plasmonic phenomena to be tailored for specific detection of human serum CRP into label-free devices. We review the CRP-specific detection platforms with high sensitivity, which feature the thin metal films for surface plasmon resonance, nano-enhancers of zero dimensional nanostructures, and metal nanoparticles for localized surface plasmon resonance. The protocols used for various types of assay reported in literature are also outlines with surface chemical pretreatment required for specific detection of CRPs on a plasmonic surface. Properties including sensitivity and detection range are described for each sensor device reviewed, while challenges faced by plasmonic CRP sensors are discussed in the conclusion, with future directions towards which research efforts need to be made. Full article
(This article belongs to the Special Issue Colloidal Particle Array and Device Fabrication)
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