A glucose-sensing polymer

被引:114
作者
Chen, GH [1 ]
Guan, ZB [1 ]
Chen, CT [1 ]
Fu, LT [1 ]
Sundaresan, V [1 ]
Arnold, FH [1 ]
机构
[1] CALTECH,DIV CHEM & CHEM ENGN 21041,PASADENA,CA 91125
关键词
diabetes mellitus; biosensor; copper-triazacyclononane; molecular imprinting;
D O I
10.1038/nbt0497-354
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
We have prepared a robust polymer that can be used to measure glucose concentrations in complex biological media. At alkaline pH, the metal-complexing polymer binds glucose and instantly releases protons in proportion to the glucose concentration over a clinically relevant range (0 to 25 mM). The inexpensive polymer is sufficiently selective to provide an easily measurable response to glucose in porcine plasma. The polymer's ability to function at nonphysiological pH (at which the buffer capacity of biological samples is small) makes it possible to design simple and inexpensive sensing devices based on measurement of changes in proton concentration.
引用
收藏
页码:354 / 357
页数:4
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