Boronic acid substituted viologen based optical sugar sensors: modulated quenching with viologen as a method for monosaccharide detection
摘要:
In our search for an optical glucose sensor we have found that the combination of pyranine I and a boronic acid substituted benzyl viologen (o-BBV. 2) signals in monosaccharides in the range of 0 1800 mg/dL. The quenching ability of o-BBV is modulated upon sugar binding. which in turn alters the fluorescence of pyranine. The system utilizes a dye that is active in the visible spectrum, operates in aqueous solution at pH 7.4, and is highly sensitive to glucose in the physiological range. (C) 2002 Elsevier Science Ltd. All rights reserved.