申请人:Kubo Izumi
公开号:US20060254909A1
公开(公告)日:2006-11-16
To prevent an electrode improvable to measurement accuracy by using a novel self-assembled monolayer suppressing an influence of the interference substance in measuring an object to be measured, and a sensor using the same. The sensor has a modified electrode
12
and a counter electrode. The modified electrode
12
has a gold electrode
16
as an electrode base, a self-assembled monolayer
18
covering the gold electrode
16
and made of carboxyalkanethiol expressed by a chemical structural formula of HS(CH
2
)
n
COOH (n=5 to 9), and an enzyme
19
immobilized on the self-assembled monolayer
18
. When measuring fructose, FDH may be used as the enzyme
19
. The self-assembled monolayer
18
allows Co(phen)
3
2+
as a mediator to pass through selectivity when being formed of 7-carbxy-1-heptanethiol.
通过使用新型自组装单层抑制干扰物质对测量待测物体的影响,防止电极提高测量精度,以及使用该单层的传感器。该传感器具有一个改良电极
12
和一个对电极。改进电极
12
有一个金电极
16
作为电极基底,自组装单层
18
覆盖在金电极
16
由羧基烷硫醇制成,化学结构式为 HS(CH)
2
)
n
COOH(n=5 至 9),以及一种酶
19
固定在自组装单层上
18
.测量果糖时,可使用 FDH 作为酶
19
.自组装单层
18
自组装单层
3
2+
作为介质通过 7-羰基-1-庚硫醇时的选择性。