Analyte kinetics in a nanocluster-based chemiresistor: A case study

被引：10

作者：

Ancona, M. G. ^{[1
]}

Snow, A. W. ^{[1
]}

Perkins, F. K. ^{[1
]}

Pate, B. ^{[1
]}

Park, D. ^{[1
]}

机构：

[1] USN, Res Lab, Washington, DC 20375 USA

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2013年 / 177卷

关键词：

Chemiresistor; Chemical kinetics; Gold nanoclusters; Amines; Diffusion; MOLECULAR-INTERACTIONS; GOLD NANOPARTICLES; CARBOXYLIC-ACIDS; METAL; RESISTIVITY; AMINES;

D O I：

10.1016/j.snb.2012.11.105

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Nanoparticulate metal-insulator-metal ensemble chemiresistors in which the Au nanoclusters are functionalized with mercaptohexanoic acid are investigated as sensors of amines, and especially of triethylamine to which they are found to be extraordinarily sensitive with a minimum detectable level of less than 500 ppt. The dependences of the response on dose, time, and temperature are studied in detail. Modeling indicates that the entire data set is well explained by the interaction of partitioning and diffusion processes, both of which are temperature dependent. Published by Elsevier B.V.

引用

收藏

页码：936 / 946

页数：11

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