Journal
CHEMICAL COMMUNICATIONS
Volume 51, Issue 82, Pages 15176-15179Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5cc06770g
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Funding
- National Institutes of Health [EB-000784]
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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.
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