Membrane-Based Electrochemical Sensors

A special issue of Membranes (ISSN 2077-0375). This special issue belongs to the section "Membrane Surfaces and Interfaces".

Deadline for manuscript submissions: closed (20 June 2023) | Viewed by 8234

Special Issue Editor

Faculty of Materials Science and Ceramics, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Cracow, Poland
Interests: analytical methods; electrochemical sensors; ion-selective electrodes; nanomaterials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The development of electrochemical sensors is a rapidly growing and popular area. In recent years, electrochemical sensors have attracted a great deal of attention in chemical and biological studies due to their high sensitivity, simplicity and reliability. New electrochemical sensors use physical, chemical and biological properties to detect various parameters in human daily life. Some examples are health, environment, food or equipment health monitoring. Taking advantage of advances in microelectronics, microengineering and materials engineering, it has become possible to develop and manufacture membrane-based sensors of very small dimensions with the possibility of making measurements by contact method in a very small amount of solution.

As a rule, such sensors can be easily miniaturized, flexible and have various shapes. Membrane-based sensors also fit perfectly into the current development of analytical sciences that led to the production of complete maintenance-free, durable and reliable ion sensors.

This Special Issue entitled “Membrane-Based Electrochemical Sensors” aims to highlight the current state-of-the-art in the field of electrochemical sensor design as well as the application of sensors in various analytical tasks (e.g., environmental control, food analysis, agriculture, medical applications). I invite you to contribute to this Special Issue. Review articles, short communications, and full-size research papers are all welcome.

I look forward to and welcome your participation in this Special Issue.

Dr. Beata Paczosa-Bator
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. Membranes 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 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

  • chemo- and biosensors
  • solid-state sensors
  • ion-selective membranes
  • electrochemical detection
  • electroactive membranes
  • voltammetric electrodes
  • new electrode materials
  • new sensors applications
  • routine sensor applications

Published Papers (5 papers)

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Research

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10 pages, 1780 KiB  
Article
Modification of Carbon Nanomaterials by Association with Poly(3-octylthiophene-2,5-diyl) as a Method of Improving the Solid-Contact Layer in Ion-Selective Electrodes
by Barbara Niemiec, Robert Piech and Beata Paczosa-Bator
Membranes 2022, 12(12), 1275; https://doi.org/10.3390/membranes12121275 - 16 Dec 2022
Cited by 2 | Viewed by 1221
Abstract
A new group of carbon nanomaterials modified with poly(3-octylthiophene-2,5-diyl) for solid-contact layers in ion-selective electrodes was obtained. The materials were characterized by scanning electron microscopy and measurement of the contact angle. The modification greatly improved the hydrophobicity of the materials, and the highest [...] Read more.
A new group of carbon nanomaterials modified with poly(3-octylthiophene-2,5-diyl) for solid-contact layers in ion-selective electrodes was obtained. The materials were characterized by scanning electron microscopy and measurement of the contact angle. The modification greatly improved the hydrophobicity of the materials, and the highest contact angle (175°) was obtained for a polymer-modified carbon nanofibers/nanotube nanocomposite. The electrical parameters of the electrodes were determined using the methods of chronopotentiometry and electrochemical impedance spectroscopy. The highest electrical charge capacity was obtained for polymer-modified carbon nanofibers (7.87 mF/cm2). For this material, the lowest detection limit (10−6.2 M) and the best potential reversibility (SD = 0.2 mV) were also obtained in potentiometric measurements. Full article
(This article belongs to the Special Issue Membrane-Based Electrochemical Sensors)
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11 pages, 1646 KiB  
Article
An Activated Bismuth Layer Formed In Situ on a Solid Bismuth Microelectrode for Electrochemical Sensitive Determination of Ga(III)
by Malgorzata Grabarczyk and Edyta Wlazlowska
Membranes 2022, 12(12), 1267; https://doi.org/10.3390/membranes12121267 - 15 Dec 2022
Cited by 1 | Viewed by 1087
Abstract
In this paper, an activated bismuth layer formed in situ on a solid bismuth microelectrode, used as a working electrode for the electrochemical sensitive determination of Ga(III), based on anodic stripping voltammetry (ASV) is discussed. The new electrode significantly enhances the sensitivity in [...] Read more.
In this paper, an activated bismuth layer formed in situ on a solid bismuth microelectrode, used as a working electrode for the electrochemical sensitive determination of Ga(III), based on anodic stripping voltammetry (ASV) is discussed. The new electrode significantly enhances the sensitivity in the ASV determination of Ga(III) and exhibits superior performance in comparison to a bismuth film electrode prepared on a glassy carbon disc. The experimental variables, such as the potential and time of solid-bismuth-microelectrode activation, the composition of the supporting electrolyte, and the influence of possible interferences on the Ga(III) signal response, were tested. The most favorable values were selected (pH = 4.6; acetate buffer; activation potential/time: −1.8 V/6 s and −1.4 V/60 s). In the optimized conditions, the peak current was found to be proportional to the concentration of Ga(III) over the range from 2 × 10−8 to 2 × 10−6 mol L−1 with R = 0.993. The limit of detection (LOD) was 7 × 10−9 mol L−1. Finally, the proposed method was successfully applied for gallium determination in certified reference waters, such as surface water and waste water, as well as tap and river water samples. The water samples were analyzed without any pretreatment and recovery values from 92.4 to 105.5% were obtained. Full article
(This article belongs to the Special Issue Membrane-Based Electrochemical Sensors)
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16 pages, 4615 KiB  
Article
Preparation, Characterization, and Activation of Natural Glassy Carbon Paste Electrodes as New Sensors for Determining the Total Antioxidant Capacity of Plant Extracts
by Agnieszka Królicka, Anna Szczurkowska, Paweł Mochalski and Grzegorz Malata
Membranes 2022, 12(12), 1193; https://doi.org/10.3390/membranes12121193 - 26 Nov 2022
Cited by 2 | Viewed by 1433
Abstract
The continuous search for new sensing materials with high recognition capabilities is necessary to improve existing analytical procedures and to develop new ones. Natural glassy carbon and polydimethylsiloxane were shown to be used for the preparation of carbon paste electrodes to employ them [...] Read more.
The continuous search for new sensing materials with high recognition capabilities is necessary to improve existing analytical procedures and to develop new ones. Natural glassy carbon and polydimethylsiloxane were shown to be used for the preparation of carbon paste electrodes to employ them in new, voltammetric, green-chemistry-friendly electroanalytical procedures aimed at evaluating the antioxidant capacity of plant extracts, dietary supplements, and hydrolats. The developed electrodes provided well-shaped and reproducible voltammetric signals (RSD = 1%) of the oxidation of epigallocatechin gallate, the main component of many plants and plant-based formulations with antioxidative activity, in the 1–12.5 µM range (DPV mode, LOD = 0.08 µM). If needed, the performance of new carbon paste electrodes can be further enhanced by the introduction of trivalent rare earth oxides to carbon paste to increase its active surface, facilitate electron transfer, and improve the resolution of recorded signals. Full article
(This article belongs to the Special Issue Membrane-Based Electrochemical Sensors)
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17 pages, 2520 KiB  
Article
Chloride Ion-Selective Electrode with Solid-Contact Based on Polyaniline Nanofibers and Multiwalled Carbon Nanotubes Nanocomposite
by Karolina Pietrzak, Klaudia Morawska, Szymon Malinowski and Cecylia Wardak
Membranes 2022, 12(11), 1150; https://doi.org/10.3390/membranes12111150 - 16 Nov 2022
Cited by 8 | Viewed by 2340
Abstract
Use of the nanocomposite of chloride-doped polyaniline nanofibers and multiwalled carbon nanotubes (PANINFs-Cl:MWCNTs) for construction of ion-selective electrodes with solid-contact sensitive to chloride ions has been described. Many types of electrodes were tested, differing in the quantitative and qualitative composition of the layer [...] Read more.
Use of the nanocomposite of chloride-doped polyaniline nanofibers and multiwalled carbon nanotubes (PANINFs-Cl:MWCNTs) for construction of ion-selective electrodes with solid-contact sensitive to chloride ions has been described. Many types of electrodes were tested, differing in the quantitative and qualitative composition of the layer placed between the electrode material and the ion-selective membrane. Initial tests were carried out, including tests of electrical properties of intermediate solid-contact layers. The obtained ion-selective electrodes had a theoretical slope of the electrode characteristic curve (−61.3 mV dec−1), a wide range of linearity (5 × 10−6–1 × 10−1 mol L−1) and good potential stability resistant to changing measurement conditions (redox potential, light, oxygen). The chloride contents in the tap, mineral and river water samples were successfully determined using the electrodes. Full article
(This article belongs to the Special Issue Membrane-Based Electrochemical Sensors)
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Review

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50 pages, 2366 KiB  
Review
Advances on Hormones and Steroids Determination: A Review of Voltammetric Methods since 2000
by Joanna Smajdor, Beata Paczosa-Bator and Robert Piech
Membranes 2022, 12(12), 1225; https://doi.org/10.3390/membranes12121225 - 02 Dec 2022
Cited by 1 | Viewed by 1442
Abstract
This article presents advances in the electrochemical determination of hormones and steroids since 2000. A wide spectrum of techniques and working electrodes have been involved in the reported measurements in order to obtain the lowest possible limits of detection. The voltammetric and polarographic [...] Read more.
This article presents advances in the electrochemical determination of hormones and steroids since 2000. A wide spectrum of techniques and working electrodes have been involved in the reported measurements in order to obtain the lowest possible limits of detection. The voltammetric and polarographic techniques, due to their sensitivity and easiness, could be used as alternatives to other, more complicated, analytical assays. Still, growing interest in designing a new construction of the working electrodes enables us to prepare new measurement procedures and obtain lower limits of detection. A brief description of the measured compounds has been presented, along with a comparison of the obtained results. Full article
(This article belongs to the Special Issue Membrane-Based Electrochemical Sensors)
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