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Sensor signal stability in functionalized sensor chips with final aptamer concentrations of (a) 0 µM (blank), (b) 1 µM, (c) 5 µM, and (d) 10 µM. Surface functionalizations carried out with final aptamer concentrations of 0, 1, 5, and 10 µM are depicted in Figures (a) through (d), respectively. (e) Fluorescence intensity of functionalized sensor chips with final aptamer concentrations of 0, 1, 5, and 10 µM.
