Chemosensors

Journal Browser

► Journal Browser

Special Issue Editors

Dr. Bryan Bilyeu

E-Mail Website
Guest Editor

Department of Chemistry, Xavier University of Louisiana, New Orleans, LA, USA
Interests: Water Quality; Wastewater; Electrocoagulation; Environmental, ICP

Dr. Zhe Wang

E-Mail Website
Guest Editor

Department of Chemistry, Xavier University of Louisiana, New Orleans, LA, USA
Interests: electrochemistry; analytical chemistry; electrode interface; composites
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Ion Selective Electrodes (ISE) are membrane electrodes that selectively measure the concentration of ions or molecules. The most common ISE is the glass membrane pH probe. Like the common pH probe, all ISE probes share the benefits of low cost, portability, minimal sample preparation, and ease of use. Membranes can be made of glass for hydrogen or sodium ions; solid inorganic salts for fluoride, chloride, silver, lead (II), copper (II), cadmium, or cyanide ions; or polymers for potassium, calcium, perchlorate, or nitrate ions and may be gas permeable for ammonia, carbon dioxide, or sulfur dioxide or can contain enzymes for biochemical analysis. An ISE measures the potential difference across a membrane compared to a reference electrode, which depends on the activity of the ion or molecule that membrane and electrode is designed to measure. The activity is related to the concentration, so the potential is proportional to the concentration.

This Special Issue on “Ion Selective Electrodes” will include applications of ISE and new interfaces in environmental analysis, water and wastewater monitoring, biochemical and pharmaceutical, and education.

Dr. Bryan Bilyeu
Dr. Zhe Wang
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. Chemosensors 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

Electrochemistry
Potentiometry
Water Quality
Pollutants
Monitor
Membrane
Environment
Probe

Published Papers (2 papers)

Download All Papers

Research

Jump to: Review

3545 KiB

Open AccessArticle

Fluorescence Chemosensory Determination of Cu²⁺ Using a New Rhodamine–Morpholine Conjugate

by Zeinab Shekari, Habibollah Younesi, Akbar Heydari, Mahmood Tajbakhsh, Mohammad Javad Chaichi, Afsaneh Shahbazi and Dariush Saberi

Chemosensors 2017, 5(3), 26; https://doi.org/10.3390/chemosensors5030026 - 19 Sep 2017

Cited by 13 | Viewed by 7920

Abstract

A new rhodamine-B carbonyl-morpholine derivative (denoted as RECM) was prepared by a two-step synthesis procedure. The employed method allowed a lactam ring development of rhodamine-B and ethylenediamine to demonstrate a facile amide bond formation. The obtained RECM was confirmed by ¹H NMR, ¹³C NMR, and mass spectrometry analysis. RECM was formed to detect copper ion (Cu²⁺) due to its problematic toxicity features in aquatic ecosystems. It showed a high selectivity toward Cu²⁺ in comparison with some environmentally relevant alkali, alkaline earth, and transition metal cations at 50 µM in acetonitrile. Moreover, non-fluorescent RECM showed fluorescence intensity and UV-Vis absorbance increases in the presence of Cu²⁺ with high linear dependent coefficients (R² = 0.964 and R² = 0.982 respectively) as well as a color change from colorless to pink owing to the ring opening of the rhodamine spirolactam form. Binding capability experiments presented a clear 1:1 stoichiometry of RECM–Cu²⁺ complex with the binding constant (K_a) as 2.25 × 10⁴ M⁻¹. The calculation of limits of detection (LOD) was 0.21 µM based on the linear regression method, which is below the maximum contaminant level goal (MCLG) value of Cu²⁺ (1.3 ppm equals to 20.46 µM) in drinking water. These characteristics make the RECM a promising candidate for the real-time detection of toxic Cu²⁺ in environmental monitoring applications. Full article

(This article belongs to the Special Issue Ion Selective Electrodes and Interfaces: Fundamental, Education and Applications)

► Show Figures

Figure 1

Review

Jump to: Research

7 pages, 811 KiB

Open AccessReview

Potentiometric Biosensing Applications of Graphene Electrodes with Stabilized Polymer Lipid Membranes

by Georgia-Paraskevi Nikoleli, Dimitrios P. Nikolelis, Christina G. Siontorou, Marianna-Thalia Nikolelis and Stephanos Karapetis

Chemosensors 2018, 6(3), 25; https://doi.org/10.3390/chemosensors6030025 - 28 Jun 2018

Cited by 2 | Viewed by 3261

Abstract

This review provides information and details about the fabrication of biosensors composed of lipid membranes that can be used to rapidly detect toxic compounds in food, environmental pollutants, and analytes of clinical interest. Biosensors based on polymeric lipid membranes have been used to rapidly detect a wide range of these analytes, offering several advantages including fast response times, high sensitivity and selectivity, portability for field applications, and small size. A description of the construction of these devices and their applications for the rapid detection of toxic substances in food, environmental pollutants, and analytes of clinical interest is provided in this review. Full article

(This article belongs to the Special Issue Ion Selective Electrodes and Interfaces: Fundamental, Education and Applications)

► Show Figures