Fabrication of disposable electrochemical devices using silver ink and office paper

Author(s)

de Araujo, W. R. ^[1] ; Paixao, T. R. L. C. ^[1]

Affiliation

^[1] Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, BR-05508900 Sao Paulo - Brazil

• Document type: Journal article
• Source: ANALYST; v. 139, n. 11, p. 2742-2747, 2014.
• Web of Science Citations: 35

Abstract

Disposable electrochemical devices are widely used nowadays for in-field applications. This paper reports a novel and simple approach to fabricate a three-electrode configuration electrochemical cell using office paper instead of chromatographic paper. This approach combined established wax printing, office paper, and silver ink to transform the office paper into an electrochemical device, thus decreasing the cost of fabrication by 96.7% compared to that using chromatographic paper. Moreover, we demonstrated that the office-paper electrochemical device is suitable for the quantification of different analytes (e.g., heavy metal ions, halides, and explosives) in aqueous solutions. The manufacturing process shown here is extremely cost-efficient and uses off-the-shelf products. (AU)

• FAPESP's process: 12/12106-5 - Development of intelligent devices (electronic noses and tongues) using electrochemical, colorimetric and mass measurements aiming to the discrimination of forensic and food samples
• Grantee: Thiago Regis Longo Cesar da Paixão
• Support type: Regular Research Grants
• FAPESP's process: 11/19903-5 - Development of electroanalytical methods for detection/discrimination of drugs of abuse, its adulterants and explosives in forensic samples
• Grantee: William Reis de Araujo
• Support type: Scholarships in Brazil - Doctorate (Direct)