Efficient reagent immobilization procedure for ion-sensitive optomembranes
Artur Dybko , Wojciech Wróblewski , Janusz Maciejewski , Ryszard Romaniuk , Zbigniew Brzózka
AbstractThis 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.
|Journal series||Sensors and Actuators B - Chemical, ISSN 0925-4005|
|Keywords in English||Immobilization of reagent, Ion-sensitive optomembranes, pH optrodes, Redox titrations|
|ASJC Classification||; ; ; ; ; ;|
|Publication indicators||= 46; = 51; = 78.0; : 2014 = 1.679; : 2006 = 2.331 (2) - 2007=3.182 (5)|
|Citation count*||78 (2020-09-17)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.