Guest Editors
Prof. Dr. Khalil Arshak and Dr. Olga Korostynska
Electronics and Computer Engineering Department
College of Informatics & Electronics, University of Limerick
Plassey Technological Park, Limerick, Ireland.
Tel. +353 61 202267, Fax +353 61 338176
E-mail: khalil.arshak@ul.ie; olga.korostynska@ul.ie; http://www.ece.ul.ie/Research/mesrg/index.html
New Deadline for Paper submission: 31 December 2007 (30 September 2007)
Summary
The pH sensor has many uses in chemistry, biology, environmental monitoring, especially water quality control and so forth. Advances in semiconductor sensor technology, medical diagnostics and health care needs boosted a rapid research into novel miniaturised pH sensors, which can be used in vivo for continuous patient monitoring. The $180 million pH sensor market in the US and $400-500m globally is well established and fragmented, with over 45 companies serving laboratory and industrial applications. The need for developing truly biocompatible materials for sensor fabrication remains the most significant challenge for achieving robust and reliable sensors capable of monitoring the real-time physiological status of patients. In recent years, considerable interest has focused on development of chemical or biological sensors using functional polymers. By introduction of functional groups, polymers can be designed to selectively swell and shrink, thereby changing mass and elasticity, as a function of analyte concentration. Various polymers have also been considered suitable for potentiometric pH sensors. Full research papers are encouraged for submission, which present new experimental or theoretical results; new modification/combination of detection principles in a broad field of polymer-based pH sensors. It can feature all aspects of amperometric, potentiometric, conductometric, coulometric, impedimetric, voltammetric and so forth pH sensors for numerous applications. There are no length restrictions for the manuscripts.
Keywords
pH sensors, pH sensitive polymers, conducting polymers, instrumentation and principles of pH sensing, industrial water quality control, biocompatible materials employed for pH sensing applications
Submission
Sensors (http://www.mdpi.org/sensors/) is a highly rated journal with a 1.373 impact factor in 2006.
Sensors is indexed and abstracted very quickly by Chemical Abstracts, Analytical Abstracts, Science Citation Index Expanded, Chemistry Citation Index, Scopus and Google Scholar.
All papers should be submitted to sensors@mdpi.org with copy to the guest editors. To be published continuously until the deadline and papers will be listed together at the special websites.
Please visit the instructions for authors at http://www.mdpi.org/sensors/publguid.htm before submitting a paper. Open Access publication fees are 800 CHF per paper. English correction fees (250 CHF) will be added in certain cases (1050 CHF per paper for those papers that require extensive additional formatting and/or English corrections).
Published Papers
Olga Korostynska 1, Khalil Arshak 1,*, Edric Gill 2 and Arousian Arshak 2
1 Electronic & Computer Engineering Department, University of Limerick, Limerick, Ireland
E-mail: khalil.arshak@ul.ie
2 Physics Department, University of Limerick, Limerick, Ireland
* Author to whom correspondence should be addressed: Electronic & Computer Engineering Department,
University of Limerick, Limerick, Ireland, Tel: +353 61 20 22 67; Fax: +353 61 33 81 76
Received: 20 August 2007 / Accepted: 26 November 2007 / Published: 30 November 2007
Review: Review on State-of-the-art in Polymer Based pH Sensors
Sensors 2007, 7, 3027-3042 (PDF format, 370 K)
Edric Gill 1, Arousian Arshak 1,*, Khalil Arshak 2 and Olga Korostynska 2
1 Dept. of Physics, University of Limerick, Limerick, Ireland.
Tel: +353 61 20 2371, Fax: +353 61 20 2423
2 Dept. of Computer and Electronic Engineering, University of Limerick, Limerick, Ireland
* Author to whom correspondence should be addressed. E-mail: Arousian.Arshak@ul.ie
Received: 29 November 2007 / Accepted: 18 December 2007 / Published: 19 December 2007
Full Research Paper: pH Sensitivity of Novel PANI/PVB/PS3 Composite Films
Sensors 2007, 7, 3329-3346 (PDF format, 499 K)
Marco Scheidle, Johannes Klinger and Jochen Büchs *
Biochemical Engineering, RWTH Aachen University, Sammelbau Biologie, Worringerweg 1, D-52074 Aachen, Germany
E-mail: scheidle@biovt.rwth-aachen.de. E-mail: klinger@biovt.rwth-aachen.de
* Author to whom correspondence should be addressed. E-mail: buechs@biovt.rwth-aachen.de
Received: 3 December 2007 / Accepted: 20 December 2007 / Published: 20 December 2007
Full Research Paper: Combination of On-line pH and Oxygen Transfer Rate Measurement in Shake Flasks by Fiber Optical Technique and Respiration Activity MOnitoring System (RAMOS)
Sensors 2007, 7, 3472-3480 (PDF format, 305 K)
Andreas Richter 1,2,*, Georgi Paschew 1,2, Stephan Klatt 1,2, Jens Lienig 1, Karl-Friedrich Arndt 2 and Hans-Jürgen P. Adler 3
1 Technische Universität Dresden, Institute of Electromechanical and Electronic Design, 01062 Dresden, Germany
E-mail: andreas.richter@chemie.tu-dresden.de
2 Technische Universität Dresden, Physical Chemistry of Polymers, 01062 Dresden, Germany
3 Technische Universität Dresden, Macromolecular Chemistry and Textile Chemistry, 01062 Dresden, Germany
* Author to whom correspondence should be addressed.
Received: 2 December 2007 / Accepted: 24 January 2008 / Published: 25 January 2008
Review: Review on Hydrogel-based pH Sensors and Microsensors
Sensors 2008, 8, 561-581 (PDF format, 499 K)
Planned Papers
Title: "An On-line pH Sensor for Tissue Engineering "
Authors: C. Cunha-Reis, A. J. El Haj and Y. Yang*
Institute for Science and Technology in Medicine, School of Medicine, Keele University,
Thornburrow Drive, Hartshill, Stoke-on-Trent ST4 7QB UK
Abstract: Development of new therapies for trauma and degeneration disease treatment has attracted great research attention. Tissue engineering demonstrates a promising future along this line. One of the factors to control the success of tissue engineering is to match the degradation rate of the scaffolds with the tissue turnover within tissue engineering constructs. Thus a robust sensor system allowing on-line and in situ monitoring of the highly dynamic process of scaffold degradation is highly required. The majority of scaffold materials used in tissue engineering are degradable polymers. They degrade mainly through hydrolysis resulting acidic degraded by-products. In this work a new robust pH sensor based on the alteration of fluorescence intensity induced by the accumulation of H+ ions in the medium has been developed. Such sensor is capable of monitoring the degradation degree of the scaffolds, both under static and perfusion culture conditions, on-line, thus, it provides a convenient technique to observe, control and adjust scaffold manufacture and construct culture conditions. The detail of the construction of the sensor and the measurement are discussed in the article.
Title: to be added
Author: Boris Lakard
Assistant Professor, Institut Utinam-UMR CNRS 6213, Equipe Nanosciences, Capteurs et Membranes, Université de Franche-Comté
UFR Sciences et Techniques, Batiment Propédeutique (Aile N), 16 Route de Gray, 25030 BESANCON CEDEX, France
E-mail: boris.lakard@univ-fcomte.fr
Mr. Matthias Burkhalter
Assistant Editor
MDPI Center - Sensors Office
Matthaeusstrasse 11 - CH-4057 Basel / Switzerland
E-mail: sensors@mdpi.org
Tel +41 61 683 7734, Fax +41 61 302 8918
http://www.mdpi.org/sensors
MDPI - Matthias Burkhalter - 12 March 2008