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Org Lett. 2005 Mar 17;7(6):1105-8. doi: 10.1021/ol050027t.

Efficient immobilization of a cadmium chemosensor in a thin film: generation of a cadmium sensor prototype.

Organic letters

R Todd Bronson, David J Michaelis, Randy D Lamb, Ghaleb A Husseini, Paul B Farnsworth, Matthew R Linford, Reed M Izatt, Jerald S Bradshaw, Paul B Savage

Affiliations

  1. Physical Science Department, College of Southern Idaho, Twin Falls, Idaho 83301, USA. [email protected]

PMID: 15760150 DOI: 10.1021/ol050027t

Abstract

[reaction: see text] The development of an ion-selective chemosensor for Cd(2+) allows generation of a "real-time" sensor. Immobilization of the chemosensor on quartz was achieved in a simple monolayer and in a thin film using a polymer intermediary. As intended, the thin film contains much more chemosensor than the monolayer and provides measurable responses to aqueous Cd(2+) concentrations below 1 microM. Alkali and alkaline earth ions do not interfere with Cd(2+) sensing; Zn(2+) and Cu(2+) are potential interferents.

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