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Enzymatically Generated Polyphenols as Array-based Metal-ion Sensors by Jungbae Kim; Xiaoqiu Wu; Michelle R Herman; Jonathan S Dordick is a Chemistry article available to read on EtoBox.

What is Enzymatically Generated Polyphenols as Array-based Metal-ion Sensors about?

Phenolic polymers containing ̄uorescent reporter molecules were prepared via soybean hull peroxidase (SBP) catalysis, and used as metal-based sensor components. Speci®cally, we generated a variety of phenolic homopolymers containing p-cresol, p-phenylphenol, or p-methoxyphenol containing one of the two ̄uorophores: ̄uorescein and calcein. The ̄uorescence of the resulting polyphenols was dependent on the presence of metal ions, including Cu 2 , Fe 2 , Zn 2 , Mn 2 , and Fe 3 . The ̄uorescence response was dependent on both, the metal ion and the phenolic monomer used in polyphenol synthesis, indicating that signi®cant control over the selectivity and sensitivity of metal sensing can be achieved by varying the components that comprise the phenolic polymer. In some cases, metal-ion concentrations as low as 10 mM can be analyzed. The broad reactivity of SBP toward phenolic monomers enables the use of a wide array of structures and chemistries that can assist in metal-ion detection.

Who reads Enzymatically Generated Polyphenols as Array-based Metal-ion Sensors?

Author

Jungbae Kim; Xiaoqiu Wu; Michelle R Herman; Jonathan S Dordick

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0003-2670)

Published

1998

Language

EN

Field

Chemistry (Physical Sciences)