Nanocoral Ag for nonenzymatic glucose detection at extremely low operational potential

被引：9

作者：

Hill-Dick, Johvan O. ^{[1
]}

Harmon, Alexis ^{[1
]}

Cao, Wei ^{[2
]}

Sadasivuni, Kishor K. ^{[3
]}

Elahi, Mehran ^{[1
]}

Adedeji, Adetayo ^{[1
]}

Elsayed-Ali, Hani E. ^{[2
]}

Slaughter, Gymama ^{[4
]}

Kumar, Kapil ^{[5
]}

Asadi, Mohammad ^{[6
]}

Kumar, Bijandra ^{[1
]}

机构：

[1] Elizabeth City State Univ, Elizabeth City, NC 27909 USA

[2] Old Dominion Univ, Newport News, VA 23606 USA

[3] Qatar Univ, Doha, Qatar

[4] Old Dominion Univ, Norfolk, VA 23508 USA

[5] Natl Inst Technol Delhi, New Delhi 110040, India

[6] IIT, Chicago, IL 60616 USA

来源：

MATERIALS TODAY COMMUNICATIONS | 2021年 / 27卷

关键词：

Glucose; Sensor; Nanocatalysts; Nonenzymatic; ELECTROCATALYTIC OXIDATION; GRAPHENE OXIDE; SENSOR; NANOPARTICLES; SILVER; GOLD; ELECTRODES; CATALYST; ALLOY;

D O I：

10.1016/j.mtcomm.2021.102261

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Silver (Ag) metal has excellent antibacterial properties, which makes it an ideal candidate for nonenzymatic glucose sensing devices. However, Ag nonenzymatic glucose sensors function at significantly high operating potential and suffer from poor selectivity. Here, we report that nanocoral reduced Ag (R-Ag) based nonenzymatic glucose sensors can be operated at potential as low as 0.1 V vs. Ag/AgCl and exhibits more than one order magnitude higher sensitivity in comparison to the Ag film. The R-Ag sensors can detect glucose in a wide range of concentrations varying from 100 u M to 2.5 mM linearly. The R-Ag sensors are also very robust, as performance remains unchanged even if sensors are stored under ambient conditions for 45 days.

引用

页数：5

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