E-Mail Alert

Add your e-mail address to receive forthcoming issues of this journal:

Journal Browser

Journal Browser

Special Issue "Ion Selective Electrodes for Bioavailable Ions"

Quicklinks

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Chemical Sensors".

Deadline for manuscript submissions: closed (31 October 2014)

Special Issue Editor

Guest Editor
Prof. Dr. John F. Cassidy

School of Chemical and Pharmaceutical Sciences Dublin Institute of Technology Kevin Street, Dublin 8 Ireland
Website | E-Mail
Interests: conducting polymers; chemical sensor development; nanoparticles; potentiometry and environmental sensing

Special Issue Information

Dear Colleagues,

This issue of Sensors is dedicated to submissions related to recent advances in the area of potentiometry. This includes work on systems like novel ionophores, ion exchangers, ionic liquids, conducting polymers, single-walled carbon nanotubes, and multi-walled carbon nanotubes used for the modification of ion selective membranes. Micro- and nanoscale potentiometric systems for interrogating individual cells and synaptic clefts are being developed too. Moreover, planar microfabricated systems, solid contact devices, and molecular imprinted systems are also of interest. New views on the theory behind the operation of potentiometric devices in equilibrium and non-equilibrium systems are being sought too. Finally, the biocompatibility and sensor stability of ion selective electrode devices are of particular interest. This issue will prove to be a milestone in ion selective electrode literature.

Prof. Dr. John F Cassidy
Guest Editor

Submission

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. Papers will be published continuously (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as 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 refereed through a peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors 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 1800 CHF (Swiss Francs).

Published Papers (3 papers)

View options order results:
result details:
Displaying articles 1-3
Export citation of selected articles as:

Research

Open AccessCommunication One Single Molecule as a Multifunctional Fluorescent Probe for Ratiometric Sensing of Fe3+, Cr3+ and Colorimetric Sensing of Cu2+
Sensors 2015, 15(1), 49-58; doi:10.3390/s150100049
Received: 21 October 2014 / Accepted: 15 December 2014 / Published: 23 December 2014
Cited by 4 | PDF Full-text (866 KB) | HTML Full-text | XML Full-text | Supplementary Files
Abstract
The reagent Rh-C, incorporating a rhodamine moiety and a coumarin backbone and prepared via click chemistry, was developed as the first single molecule for detecting Cu2+, Fe3+ and Cr3+. Its response to Cu2+ in different solutions
[...] Read more.
The reagent Rh-C, incorporating a rhodamine moiety and a coumarin backbone and prepared via click chemistry, was developed as the first single molecule for detecting Cu2+, Fe3+ and Cr3+. Its response to Cu2+ in different solutions is visible to the naked eye and it exhibits a ratiometric fluorescence response to Fe3+ in methanol and Cr3+ in acetonitrile. Full article
(This article belongs to the Special Issue Ion Selective Electrodes for Bioavailable Ions)
Figures

Open AccessArticle A New Electrochemical Sensor Based on Task-Specific Ionic Liquids-Modified Palm Shell Activated Carbon for the Determination of Mercury in Water Samples
Sensors 2014, 14(7), 13102-13113; doi:10.3390/s140713102
Received: 19 May 2014 / Revised: 4 July 2014 / Accepted: 7 July 2014 / Published: 21 July 2014
Cited by 3 | PDF Full-text (736 KB) | HTML Full-text | XML Full-text
Abstract
In this study, a potentiometric sensor composed of palm shell activated carbon modified with trioctylmethylammonium thiosalicylate (TOMATS) was used for the potentiometric determination of mercury ions in water samples. The proposed potentiometric sensor has good operating characteristics towards Hg (II), including a relatively
[...] Read more.
In this study, a potentiometric sensor composed of palm shell activated carbon modified with trioctylmethylammonium thiosalicylate (TOMATS) was used for the potentiometric determination of mercury ions in water samples. The proposed potentiometric sensor has good operating characteristics towards Hg (II), including a relatively high selectivity; a Nernstian response to Hg (II) ions in a concentration range of 1.0 × 10−9 to 1.0 × 10−2 M, with a detection limit of 1 × 10−10 M and a slope of 44.08 ± 1.0 mV/decade; and a fast response time (~5 s). No significant changes in electrode potential were observed when the pH was varied over the range of 3–9. Additionally, the proposed electrode was characterized by good selectivity towards Hg (II) and no significant interferences from other cationic or anionic species. Full article
(This article belongs to the Special Issue Ion Selective Electrodes for Bioavailable Ions)
Open AccessArticle Miniaturizable Ion-Selective Arrays Based on Highly Stable Polymer Membranes for Biomedical Applications
Sensors 2014, 14(7), 11844-11854; doi:10.3390/s140711844
Received: 7 May 2014 / Revised: 21 June 2014 / Accepted: 2 July 2014 / Published: 4 July 2014
PDF Full-text (471 KB) | HTML Full-text | XML Full-text
Abstract
Poly(vinylchloride) (PVC) is the most common polymer matrix used in the fabrication of ion-selective electrodes (ISEs). However, the surfaces of PVC-based sensors have been reported to show membrane instability. In an attempt to overcome this limitation, here we developed two alternative methods for
[...] Read more.
Poly(vinylchloride) (PVC) is the most common polymer matrix used in the fabrication of ion-selective electrodes (ISEs). However, the surfaces of PVC-based sensors have been reported to show membrane instability. In an attempt to overcome this limitation, here we developed two alternative methods for the preparation of highly stable and robust ion-selective sensors. These platforms are based on the selective electropolymerization of poly(3,4-ethylenedioxythiophene) (PEDOT), where the sulfur atoms contained in the polymer covalently interact with the gold electrode, also permitting controlled selective attachment on a miniaturized electrode in an array format. This platform sensor was improved with the crosslinking of the membrane compounds with poly(ethyleneglycol) diglycidyl ether (PEG), thus also increasing the biocompatibility of the sensor. The resulting ISE membranes showed faster signal stabilization of the sensor response compared with that of the PVC matrix and also better reproducibility and stability, thus making these platforms highly suitable candidates for the manufacture of robust implantable sensors. Full article
(This article belongs to the Special Issue Ion Selective Electrodes for Bioavailable Ions)
Figures

Journal Contact

MDPI AG
Sensors Editorial Office
St. Alban-Anlage 66, 4052 Basel, Switzerland
sensors@mdpi.com
Tel. +41 61 683 77 34
Fax: +41 61 302 89 18
Editorial Board
Contact Details Submit to Sensors
Back to Top