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. 2017 Dec 6;17(12):2826. doi: 10.3390/s17122826

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© 2017 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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(A) Quenching of the luminescence peak centered at 630 nm of the multilayer structure (PAH/CdTe)₁₂(PAH/PSS)₃(PAH/GOD)₃ when it is exposed to a 4 mM glucose solution at different temperatures. The time-dependent luminescence intensity of that peak during the first 9 min of the reaction for each temperature is shown in the inset. (B) Luminescence quenching of the same film for different glucose concentrations: (a) 2, (b) 4, (c) 6, (d) 8, (e) 12, (f) 16, (g) 20, and (h) 40 mM over 150 min; (C) quenching rate (Q_m) of the sensor over 5 min as a function of the glucose concentration. F₀ and F_m correspond to the luminescence intensity in the absence (F₀) and presence (F_m) of glucose. All measurements were carried out in a 20 mM phosphate buffer at pH 7.4. Copyright: 2009, American Chemical Society.

(A) Quenching of the luminescence peak centered at 630 nm of the multilayer structure (PAH/CdTe)₁₂(PAH/PSS)₃(PAH/GOD)₃ when it is exposed to a 4 mM glucose solution at different temperatures. The time-dependent luminescence intensity of that peak during the first 9 min of the reaction for each temperature is shown in the inset. (B) Luminescence quenching of the same film for different glucose concentrations: (a) 2, (b) 4, (c) 6, (d) 8, (e) 12, (f) 16, (g) 20, and (h) 40 mM over 150 min; (C) quenching rate (Q_m) of the sensor over 5 min as a function of the glucose concentration. F₀ and F_m correspond to the luminescence intensity in the absence (F₀) and presence (F_m) of glucose. All measurements were carried out in a 20 mM phosphate buffer at pH 7.4. Copyright: 2009, American Chemical Society.