Efficient reagent immobilization procedure for ion-sensitive optomembranes

Artur Dybko , Wojciech Wróblewski , Janusz Maciejewski , Ryszard Romaniuk , Zbigniew Brzózka

Abstract

This paper presents an efficient and simple reagent immobilization procedure for ion-sensitive membranes of fiber-optic chemical sensors. The applied procedure combines two well-known types of sensing optrode layers: the surface membrane and the bulk type using a polymer track membrane (PTM). The microporous polymer foil significantly increases the active surface of the membrane for reagent immobilization and allows a larger amount of an indicator dye to be incorporated, which leads to large changes in the measured signal. Additionally, the high porosity of a PTM reduces the barrier of mass transport, which decreases the response time of prepared optomembranes. The preparation and performance of optrodes for redox titration and pH fiber-optic sensors based on cellulose acetate PTMs are described.
Author Artur Dybko (FC / IBC / DM)
Artur Dybko,,
- Department Of Microbioanalytics
, Wojciech Wróblewski (FC / IBC / DM)
Wojciech Wróblewski,,
- Department Of Microbioanalytics
, Janusz Maciejewski - [Warsaw University of Technology (PW)]
Janusz Maciejewski,,
-
- Politechnika Warszawska
, Ryszard Romaniuk (FEIT / PE)
Ryszard Romaniuk,,
- The Institute of Electronic Systems
, Zbigniew Brzózka (FC / IBC / DM)
Zbigniew Brzózka,,
- Department Of Microbioanalytics
Journal seriesSensors and Actuators B - Chemical, ISSN 0925-4005
Issue year1997
Vol39
No1–3
Pages207--211
Keywords in EnglishImmobilization of reagent, Ion-sensitive optomembranes, pH optrodes, Redox titrations
ASJC Classification2505 Materials Chemistry; 2208 Electrical and Electronic Engineering; 2506 Metals and Alloys; 2508 Surfaces, Coatings and Films; 3104 Condensed Matter Physics; 3105 Instrumentation; 2504 Electronic, Optical and Magnetic Materials
DOIDOI:10.1016/S0925-4005(97)80205-5
URL http://www.sciencedirect.com/science/article/pii/S0925400597802055
Score (nominal)40
Score sourcejournalList
Publication indicators WoS Citations = 46; Scopus Citations = 51; GS Citations = 78.0; Scopus SNIP (Source Normalised Impact per Paper): 2014 = 1.679; WoS Impact Factor: 2006 = 2.331 (2) - 2007=3.182 (5)
Citation count*78 (2020-09-17)
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