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Polymers
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Polymer Thin Films in Sensor Applications
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Polymer Thin Films in Sensor Applications

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Membranes and Films".

Deadline for manuscript submissions: closed (10 February 2023) | Viewed by 6895

Special Issue Editors

Dr. Bruno Vinicius Manzolli Rodrigues

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Guest Editor
Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden
Interests: polymers; biopolymers; biomaterials; sensors; electrospinning; tissue engineering.
Dr. Paulo Augusto Raymundo-Pereira

E-Mail Website
Guest Editor
São Carlos Institute of Physics, University of São Paulo, Sao Paulo 13566-690, Brazil
Interests: sensors and biosensors; nanotechnology; wearable devices; microneedle; biomarkers; diagnostics; clinical, environmental, food and water analysis; internet of things; artificial intelligence
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Unique and varied properties found in different polymers have gained polymeric films a prominent space as matrices for many potential applications. In particular, thin polymer films have found a wide niche in various industrial sectors related to functional coatings, biocompatible materials, non-fouling surfaces, and sensors. Regarding the latter, the miniaturization of microelectronics favours the use of polymer thin films, leading to sensors with greater sensitivity towards local changes. While being robust and presenting flexibility of design, sensor devices based on thin films present many potential advantages over conventional ones, including a smaller form factor and lower power consumption. This Special Issue on Polymer Thin Films in Sensor Applications is devoted to the dissemination on high-quality original research articles and comprehensive reviews on cutting-edge developments in this field. 

With a focus on polymer thin films in sensor applications, potential topics include, but are not limited to, the following:

  • Sensors in medicine and biology;
  • Gas detection (including humidity);
  • Mechanical sensors;
  • Acoustic sensors;    
  • Ion-selective sensors;
  • Infrared radiation sensors;
  • Electrochemical devices.

Dr. Bruno Vinicius Manzolli Rodrigues
Dr. Paulo A. Raymundo-Pereira
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. Polymers 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

  • polymers
  • thin films
  • polymer thin films
  • sensors
  • biosensors
  • gas detection

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Published Papers (2 papers)

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Research

12 pages, 2488 KiB  
Article
Ion-Selective Electrode Based on a Novel Biomimetic Nicotinamide Compound for Phosphate Ion Sensor
by Bongjin Jeong, Jin Seong Oh, Do Yeob Kim, Dong Gyu Kim, Young Il Kim, Jungseok Heo and Hyung-Kun Lee
Polymers 2022, 14(16), 3392; https://doi.org/10.3390/polym14163392 - 19 Aug 2022
Cited by 3 | Viewed by 2121
Abstract
Phosphorus is not only an import nutrient to aquatic habitats, but it also acts as a growth inhibitor in aquatic ecosystems; however, it also aggravates environmental issues, such as eutrophication. There is a growing interest in rapid phosphorus detection to manage and protect [...] Read more.
Phosphorus is not only an import nutrient to aquatic habitats, but it also acts as a growth inhibitor in aquatic ecosystems; however, it also aggravates environmental issues, such as eutrophication. There is a growing interest in rapid phosphorus detection to manage and protect water resources. Due to the large molecular structure and high hydration energy of phosphate ions, ion-selective electrodes (ISEs) remain in their infancy for real-time measurements in terms of practical application. In this study, a newly developed ionophore based on a biomimetic nicotinamide functional group was used to detect phosphate selectively, displaying efficient binding through charge interactions and hydrogen bonds. The ISE membrane containing silicone rubber demonstrated an effective detection performance over a long period of time. With a dynamic range between 10−6 and 10−2 M and a limit of detection of 0.85 × 10−6 M (26 μg/L), the newly synthesized ISE membranes demonstrated selectivity for phosphate ions over other ions, including acetate, sulfate, and chloride. Full article
(This article belongs to the Special Issue Polymer Thin Films in Sensor Applications)
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Graphical abstract

11 pages, 3236 KiB  
Article
Investigating Mechanical Behaviours of PDMS Films under Cyclic Loading
by Kyu Song, Nak-Kyun Cho, Keun Park and Chung-Soo Kim
Polymers 2022, 14(12), 2373; https://doi.org/10.3390/polym14122373 - 12 Jun 2022
Cited by 20 | Viewed by 3985
Abstract
Polydimethylsiloxane (PDMS) is widely utilised as a substrate for wearable (stretchable) electronics where high fatigue resistance is required. Cyclic loadings cause the rearrangement of the basic molecular structure of polymer chains, which leads to changes in the mechanical properties of the PDMS structure. [...] Read more.
Polydimethylsiloxane (PDMS) is widely utilised as a substrate for wearable (stretchable) electronics where high fatigue resistance is required. Cyclic loadings cause the rearrangement of the basic molecular structure of polymer chains, which leads to changes in the mechanical properties of the PDMS structure. Accordingly, it is necessary to investigate reliable mechanical properties of PDMS considering both monotonic and cyclic loading conditions. This study aims to present the mechanical properties of PDMS films against both monotonic and cyclic loading. The effects of certain parameters, such as film thickness and magnitude of tensile strain, on mechanical properties are also investigated. The test results show that PDMS films have a constant monotonic elastic modulus regardless of the influence of thickness and tensile loading, whereas a cyclic elastic modulus changes depending on experimental parameters. Several material parameters, such as neo-Hookean, Mooney–Rivlin, the third-order Ogden model, and Yeoh, are defined to mimic the stress–strain behaviours of the PDMS films. Among them, it is confirmed that the third-order Ogden model is best suited for simulating the PDMS films over the entire tensile test range. This research makes contributions not only to understanding the mechanical behaviour of the PDMS films between the monotonic and the cycle loadings, but also through providing trustworthy hyperelastic material coefficients that enable the evaluation of the structural integrity of the PDMS films using the finite element technique. Full article
(This article belongs to the Special Issue Polymer Thin Films in Sensor Applications)
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