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Keith J, Hess LC, Spendel WU, et al. The investigation of the behavior of a long period grating sensor with a copper sensitive coating fabricated by layer-by-layer electrostatic adsorption. Talanta. 2006;70(4):818-22doi: 10.1016/j.talanta.2006.01.047.
Keith, J., Hess, L. C., Spendel, W. U., Cox, J. A., & Pacey, G. E. (2006). The investigation of the behavior of a long period grating sensor with a copper sensitive coating fabricated by layer-by-layer electrostatic adsorption. Talanta, 70(4), 818-22. https://doi.org/10.1016/j.talanta.2006.01.047
Keith, J, et al. "The investigation of the behavior of a long period grating sensor with a copper sensitive coating fabricated by layer-by-layer electrostatic adsorption." Talanta vol. 70,4 (2006): 818-22. doi: https://doi.org/10.1016/j.talanta.2006.01.047
Keith J, Hess LC, Spendel WU, Cox JA, Pacey GE. The investigation of the behavior of a long period grating sensor with a copper sensitive coating fabricated by layer-by-layer electrostatic adsorption. Talanta. 2006 Nov 15;70(4):818-22. doi: 10.1016/j.talanta.2006.01.047. Epub 2006 Mar 07. PMID: 18970845.
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Talanta. 2006 Nov 15;70(4):818-22. doi: 10.1016/j.talanta.2006.01.047. Epub 2006 Mar 07.

The investigation of the behavior of a long period grating sensor with a copper sensitive coating fabricated by layer-by-layer electrostatic adsorption.

Talanta

J Keith, L C Hess, W U Spendel, J A Cox, G E Pacey

Affiliations

  1. Miami University Center for Nanotechnology, Department of Chemistry and Biochemistry, Miami University, Hughes Hall, Oxford, OH 45056, United States.

PMID: 18970845 DOI: 10.1016/j.talanta.2006.01.047

Abstract

Sensors based on changes of refractive index in response to sorption of an analyte on the coating or film of a long period grating fiber (LPG) fiber have recently been reported. In most prior work the coating or film swelled during interaction with the analyte. The swelling mechanism produced a kinetic response that slowed both the sensor's time for steady-state measurement and the reversibility of the sensor. Here, the analytical utility of fabricating these nanometer thin films using the layer-by-layer (LBL) electrostatic assembly method is evaluated using Cu(II) as the test analyte and Cibacron Blue as the reagent immobilized in the LBL assembly; a generation-4 poly(amidoamine) dendrimer served as the spacer in the assembly. Detection of 1.3mgCu(II)L(-1) was observed when six bilayers comprised the coating. The stable response was achieved with 0.6mgL(-1) in less than 1min. When 0.1M HCl was used as the rinsing solution, this LPG sensor was reversible and the signal to similar concentrations of Cu(II) reproducible.

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