1. Paper-based plasticizer-free sodium ion-selective sensor with camera phone as a detector
- Author
-
Mark E. Meyerhoff, Xuewei Wang, and Yu Qin
- Subjects
Paper ,Materials science ,Hydrocarbons, Fluorinated ,Sodium ,Inorganic chemistry ,Ionophore ,chemistry.chemical_element ,Article ,Catalysis ,chemistry.chemical_compound ,Adsorption ,Phase (matter) ,Borates ,Materials Chemistry ,Cellulose ,Ionophores ,Metals and Alloys ,Plasticizer ,Substrate (chemistry) ,General Chemistry ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,chemistry ,Ceramics and Composites ,Optode ,Cell Phone - Abstract
An ionophore-based ion-selective optode platform on paper is described for the first time with a sodium optode as the example. Cellulose paper is shown to be an excellent substrate for adsorption of the required chromoionophore, ionophore, and ion exchanger species. These adsorbed components form a hydrophobic phase that enables heterogeneous optical ion sensing in the absence of any plasticizer or organic polymer phase.
- Published
- 2015