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Effects of fluid viscosity and pH on the responsiveness of the Hcy probe. (A) The graph demonstrates that fluorescence intensity of the probe in response to Hcy was not affected by the different viscosities (glycerol/water, 1.005–219 cp). (B) The graph demonstrates that the fluorescence intensity exhibited stable responsiveness to Hcy (20 µM) at pH 7. Hcy, homocysteine.
