Layer-by-layer films of poly(o-ethoxyaniline), chitosan and chitosan-poly(methaerylic acid) nanoparticles and their application in an electronic tongue

被引：13

作者：

Borato, Carlos E.

Leite, Fabio L.

Mattoso, Luiz H. C.

Goy, Rejane C.

Campana Filho, Sergio P.

de Vasconcelos, Claudio L.

Neto, Cypriano G. da Trindade

Pereira, Marcia R.

Fonseca, Jose L. C.

Oliveira, Osvaldo N., Jr.

机构：

[1] EMBRAPA, BR-13560970 Sao Carlos, SP, Brazil

[2] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil

[3] Univ Fed Rio Grande do Norte, Dept Quim, BR-59078970 Natal, RN, Brazil

[4] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil

来源：

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2006年 / 13卷 / 05期

关键词：

electronic tongue; chromium electrodes; films; chitosan nanoparticles; POEA; impedance spectroscopy;

D O I：

10.1109/TDEI.2006.1714936

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Layer-by-layer (LbL) films have been produced with poly(o-ethoxyaniline) (POEA), chitosan and chitosan-poly(methacrylic acid) (CS-PMAA) nanoparticles. Because the adsorption of LbL films depends on ionic interactions and H-bonding, optimized conditions had to be established for the growth of multilayer films. Unusually thick films were obtained for POEA and CS-PMAA, thus demonstrating the importance of using chitosan in the form of nanoparticles. These nanostructured films were deposited on chromium electrodes to form a sensor array (electronic tongue) based on impedance spectroscopy. This system was used to detect copper ions in aqueous solutions.

引用

页码：1101 / 1109

页数：9

共 26 条

[1] A FURTHER STEP TOWARDS STABLE ORGANIC METALS - ORIENTED FILMS OF POLYANILINE WITH HIGH ELECTRICAL-CONDUCTIVITY AND ANISOTROPY [J].