Fig. 2.

Schematic representation of chemical sensing with an imprinted polymer through proximity scintillation [18]. The polymerizable fluor (1a) is incorporated into imprinted particles with affinity for the template, naproxen (2). The fluor emits light in response to β-decay of tritium-labeled naproxen, but not other labeled analytes (a); competition between radiolabeled naproxen and free (unlabeled naproxen) (b) can be used to quantify the analyte without separation of the bound and free components. Reprinted with permission from Ye L, Mosbach K (2001) Journal of the American Chemical Society 123(12):2901–2902 Copyright 2001 American Chemical Society