Simple and conveniently accessible bi-fluorescence-labeled substrates for amylases

Synthesis of bi-fluorescence-labeled maltooligosaccharides for amylase assay was accomplished. Preliminary biological evaluation of both bi-fluorescence-labeled maltohexasaccharide and maltose using alpha-amylase was carried out, and the hexaosyl derivative showed unique variation on the basis of fluorescence resonance energy transfer (FRET). (C) 2010 Elsevier Ltd. All rights reserved.