Detection of Sugars Using Lipid/Polymer Membraces

Lipid/polymer membranes were modified with a phenolic compound, gallic acid, to obtain a high sensitivity to sugars, such as sucrose, glucose and fructose. Electric responses to sugars were measured with surface-modified membranes composed of tetradodecylammonium bromide, di-n-octylphenylphosphonate...

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Published inSensors and materials Vol. 19; no. 5; pp. 325 - 331
Main Authors Habara, Masaaki, Beppu, Daiki, Cui, Hong, Ikezaki, Hidekazu, Toko, Kiyoshi
Format Journal Article
LanguageEnglish
Published 01.01.2007
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Summary:Lipid/polymer membranes were modified with a phenolic compound, gallic acid, to obtain a high sensitivity to sugars, such as sucrose, glucose and fructose. Electric responses to sugars were measured with surface-modified membranes composed of tetradodecylammonium bromide, di-n-octylphenylphosphonate and polyvinyl chloride. The spectroscopic properties of gallic acid in an aqueous solution and in the presence of amphiphilic molecules in a buffer solution were studied. The obtained results show that the change in the absorption spectrum of gallic acid is pH- and time-dependent, and is susceptible to electric responses to sugars.
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ISSN:0914-4935