OSA's Digital Library

Applied Spectroscopy

Applied Spectroscopy


  • Vol. 62, Iss. 4 — Apr. 1, 2008
  • pp: 345–352

Photophysics of 9,10-Anthracenediol and a Bifunctional Sacrificial Template in Solution and Xerogels

Ellen L. Holthoff and Frank V. Bright

Applied Spectroscopy, Vol. 62, Issue 4, pp. 345-352 (2008)

View Full Text Article

Acrobat PDF (761 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

  • Export Citation/Save Click for help


Site selectively templated and tagged xerogels (SSTTX) represent a new sensing platform. Although this platform has several attractive features, the template formation process is not fully understood. To address this issue we have explored the photophysics of two model compounds (9,10-anthracenediol and a bifunctional sacrificial template (BST)) when dissolved in solution and when sequestered within a xerogel. The solution experiments show that the carbamate tethers on the BST (which are eventually cleaved to form the analyte responsive sites that make up the SSTTX) do not alter the anthracene residue's intrinsic photophysics. In contrast, 9,10-anthracenediol and BST molecules sequestered within a xerogel sense and report from a distribution of microenvironments. The distribution mean values are very similar, but the variance is statistically greater for the BST-doped xerogel in comparison to the 9,10-anthracenediol-doped xerogel. The most likely causes of this behavior are heterogeneity and electron and energy transfer processes that are controlled by differences in the position/orientation of the anthracene moiety at the pore surface in the Class I (9,10-anthracenediol) and Class II (BST) xerogels. These results also suggest that the initial template sites produced during the SSTTX formation process are not discrete; they are intrinsically more diverse (maybe 30%) in comparison to the types of template sites created by traditional molecular imprinting strategies. However, our previously reported SSTTX binding studies do not reveal any evidence for a distribution of analyte-to-SSTTX binding. This apparently anomalous behavior may result because the relative standard deviation of the binding process is intrinsically small and/or one or more of the steps that follow template site formation attenuate the final template site distribution within the SSTTX.

Virtual Issues
Vol. 3, Iss. 5 Virtual Journal for Biomedical Optics

Ellen L. Holthoff and Frank V. Bright, "Photophysics of 9,10-Anthracenediol and a Bifunctional Sacrificial Template in Solution and Xerogels," Appl. Spectrosc. 62, 345-352 (2008)

Sort:  Journal  |  Reset


References are not available for this paper.

Cited By

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited