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Simple and Precise Preparation of a Porous Gel for a Colorimetric Glucose Sensor by a Templating Technique
Author(s) -
Nakayama Daisuke,
Takeoka Yukikazu,
Watanabe Masayoshi,
Kataoka Kazunori
Publication year - 2003
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200351746
Subject(s) - chromatography , porosity , materials science , colloid , chemistry , nanotechnology , chemical engineering , organic chemistry , composite material , engineering
Red for danger! A glucose‐sensitive gel is systematically prepared by careful control of the gel recipe to produce the desired swelling ratio at a given glucose concentration. Subsequently, a periodically ordered porous gel is obtained from the bulk gel by using a closest‐packing colloidal crystal as a template; this template is subsequently removed. The gel exhibits expected structural color at certain glucose concentrations and thus can be used as a colorimetric glucose sensor, which may applied as a test for diabetes (see picture).