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Technologies
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Smart Systems (SmaSys2018)
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Smart Systems (SmaSys2018)

A special issue of Technologies (ISSN 2227-7080). This special issue belongs to the section "Innovations in Materials Processing".

Deadline for manuscript submissions: closed (1 July 2019) | Viewed by 24925

Special Issue Editors

Prof. Dr. Hidemitsu Furukawa

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Guest Editor
Department of Mechanical Systems Engineering, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
Interests: 3D printing; soft robotics; gels; food; light scattering
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Bungo Ochiai

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Guest Editor
Graduate School of Science and Engineering, Yamagata University, Yamagata 992-8510, Japan
Interests: polymer chemistry; organic–inorganic hybrid material; green chemistry
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Dr. Masato Makino

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Guest Editor
Graduate School of Science and Engineering, Yamagata University, Yamagata 992-8510, Japan
Interests: microhydrodynamics; soft matter physics; 3D printing
Special Issues, Collections and Topics in MDPI journals
Dr. Ajit Khosla

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Guest Editor
Department of Mechanical Systems Engineering, Graduate School of Science and Engineering, Yamagata University, Yamagata 992-8510, Japan
Interests: flexible sensors and electronics; 3D-printed sensors and systems; 3D and 4D printing; hybrid materials; MEMS/NEMS; nanocomposites
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are planning to publish a Special Issue on "Smart System" related to the International Conference of Smart Systems Engineering (SmaSys2018, http://smasys.yz.yamagata-u.ac.jp/2018/) which was held on 11–12 October 2018, in Yonezawa, Japan. The Special Issue “Smart System” provides opportunities for collaboration across a wide range of fields and technologies related to emerging smart systems. Smart systems regard broad scientific and engineering fields. They include organic materials, organic electronics, organic devices, biomaterials, biomedical and biosystem engineering, electrical engineering and informatics, mechanical systems engineering, smart flexible structure and systems, green materials and their processing, tourism engineering with agriculture and foods, and new engineering education.

All the participants of SmaSys2018 and their colleagues, especially the students, are encouraged to submit their works to this Special Issue.

Prof. Dr. Hidemitsu Furukawa
Prof. Dr. Bungo Ochiai
Dr. Masato Makino
Dr. Ajit Khosla
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. Technologies 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 1600 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

  • organic materials, organic electronics, and organic devices
  • biomaterials, biomedical, and biosystems engineering
  • electrical engineering and informatics
  • mechanical systems engineering
  • smart flexible structures and systems
  • green materials and processing
  • tourism engineering with agriculture and foods
  • new engineering education

Related Special Issue

Published Papers (4 papers)

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Research

9 pages, 2557 KiB  
Article
The Effect of the Terminal Functional Groups on Fluoropolymer on Electrowetting Device Performance
by Eri Oishi, Noritoshi Araki, Teruya Goto, Hiroshi Awano and Tatsuhiro Takahashi
Technologies 2019, 7(3), 52; https://0-doi-org.brum.beds.ac.uk/10.3390/technologies7030052 - 27 Jul 2019
Cited by 2 | Viewed by 5547
Abstract
Electrowetting on dielectric (EWOD) devices were fabricated using two hydrophobic organic fluoropolymers, comprising CYTOP (a product name) having different chemical structures only at the terminal functional groups. These devices were subsequently characterized by applying a range of direct current (DC) voltages. The data [...] Read more.
Electrowetting on dielectric (EWOD) devices were fabricated using two hydrophobic organic fluoropolymers, comprising CYTOP (a product name) having different chemical structures only at the terminal functional groups. These devices were subsequently characterized by applying a range of direct current (DC) voltages. The data demonstrated that the EWOD performance was dramatically improved upon incorporating a CYTOP polymer having highly polar terminal functional groups, as compared to a polymer having terminal groups with lower polarity. The new finding about the positive effect of highly polar terminal functional groups on the enhancement of EWOD was exhibited through various careful experiments, changing only the quantitative amount of polar terminal functional groups while keeping other factors constant (thickness, substrate, etc.). Full article
(This article belongs to the Special Issue Smart Systems (SmaSys2018))
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12 pages, 4683 KiB  
Article
A Self-Deformation Robot Design Incorporating Bending-Type Pneumatic Artificial Muscles
by Hiroki Tomori, Kenta Hiyoshi, Shonosuke Kimura, Naoya Ishiguri and Taisei Iwata
Technologies 2019, 7(3), 51; https://0-doi-org.brum.beds.ac.uk/10.3390/technologies7030051 - 23 Jul 2019
Cited by 4 | Viewed by 5817
Abstract
With robots becoming closer to humans in recent years, human-friendly robots made of soft materials provide a new line of research interests. We designed and developed a soft robot that can move via self-deformation toward the practical application of monitoring children and the [...] Read more.
With robots becoming closer to humans in recent years, human-friendly robots made of soft materials provide a new line of research interests. We designed and developed a soft robot that can move via self-deformation toward the practical application of monitoring children and the elderly on a daily basis. The robot’s structure was built out of flexible frames, which are bending-type pneumatic artificial muscles (BPAMs). We first provide a description and discussion on the nature of BPAM, followed by static characteristics experiment. Although the BPAM theoretical model shares a similar tendency with the experimental results, the actual BPAMs moved along the depth direction. We then proposed and demonstrated an effective locomotion method for the robot and calculated its locomotion speed by measuring its drive time and movement distance. Our results confirmed the reasonability of the robot’s speed for monitoring children and the elderly. Nevertheless, during the demonstration, some BPAMs were bent sharply by other activated BPAMs as the robot was driving, leaving a little damage on these BPAMs. This will be addressed in our future work. Full article
(This article belongs to the Special Issue Smart Systems (SmaSys2018))
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8 pages, 1413 KiB  
Article
Formaldehyde Detection by a Combination of Formaldehyde Dehydrogenase and Chitosan on a Sensor Based on an Organic Field-Effect Transistor
by Kazuhiko Tsuchiya, Hiroyuki Furusawa, Ayako Nomura, Hiroyuki Matsui, Mizuhisa Nihei and Shizuo Tokito
Technologies 2019, 7(3), 48; https://0-doi-org.brum.beds.ac.uk/10.3390/technologies7030048 - 04 Jul 2019
Cited by 8 | Viewed by 7031
Abstract
Formaldehyde is utilized for the preservation of materials due to its strong bactericidal effects. As formaldehyde is also a harmful substance that causes health hazards, the quantitative monitoring of formaldehyde in natural and living environments is desirable. For the rapid and easy detection [...] Read more.
Formaldehyde is utilized for the preservation of materials due to its strong bactericidal effects. As formaldehyde is also a harmful substance that causes health hazards, the quantitative monitoring of formaldehyde in natural and living environments is desirable. For the rapid and easy detection of formaldehyde, in this study we applied an organic field-effect transistor (OFET)-based sensor that can function as a potentiometric device for electrochemical measurements. A polyion-complex gel of formaldehyde dehydrogenase (FDH) and chitosan (CT) was constructed on a gold electrode. When the FDH/CT gel-coated electrode was connected to an OFET device it could detect formaldehyde in an aqueous solution, in which the amino groups of chitosan would protonate during the enzymatic reaction. The limit of detection was calculated to be 3.1 µM (93 ppb), demonstrating the applicability of the film-type OFET sensor to environmental monitoring. Full article
(This article belongs to the Special Issue Smart Systems (SmaSys2018))
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Graphical abstract

8 pages, 3377 KiB  
Article
Scissors-Type Haptic Device Using Magnetorheological Fluid Containing Iron Nanoparticles
by Mioto Waga, Yuuki Aita, Junichi Noma, Takehito Kikuchi and Yoshimune Nonomura
Technologies 2019, 7(1), 26; https://0-doi-org.brum.beds.ac.uk/10.3390/technologies7010026 - 27 Feb 2019
Cited by 2 | Viewed by 5903
Abstract
The mechanical ability and usefulness of simulation systems can be improved by combining a tactile display with a remote control or medical simulation systems. In this study, a scissors-type haptic device containing magnetorheological fluid (MR fluid) in its fulcrum is developed. We evaluate [...] Read more.
The mechanical ability and usefulness of simulation systems can be improved by combining a tactile display with a remote control or medical simulation systems. In this study, a scissors-type haptic device containing magnetorheological fluid (MR fluid) in its fulcrum is developed. We evaluate the mechanical response to the applied voltage and realize the presence of mechanical stimuli when a subject grasps or cuts the corresponding objects. When the magnetic field around the MR fluid is controlled by an electric voltage of 150–500 mV, the torque linearly increases from 0.007 ± 0.000 to 0.016 ± 0.000 N m. The device can provide tactile stimuli with 0.1 s of resolution. We also determined the voltage profiles based on typical force profiles obtained during grasping/cutting processes and evaluated the torque using a mechanical evaluation system. Features of the force profiles related to the soft and sticky feels were reconstructed well. Full article
(This article belongs to the Special Issue Smart Systems (SmaSys2018))
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