Different approaches for fabrication of low-cost electrochemical sensors

Author(s)

Stefano, Jessica Santos ; Orzari, Luiz Otavio ; Silva-Neto, Habdias Araujo ; de Ataide, Vanessa Neiva ; Mendes, Leticia Francine ; Tomazelli Coltro, Wendell Karlos ; Cesar Paixao, Thiago Regis Longo ; Janegitz, Bruno Campos

• Document type: Journal article
• Source: CURRENT OPINION IN ELECTROCHEMISTRY; v. 32, p. 9-pg., 2022-04-01.

Abstract

Electrochemistry combined with economical and sustainable platforms (such as paper) provides portable, affordable, robust, and user-friendly devices. In general, techniques, such as photolithography and sputtering, are excellent alternatives for producing these platforms. However, owing to the requirement of expensive and sophisticated instrumentation, as well as cleanroom facilities, these techniques have limited access. Thus, the search for easy to use and produce approaches have been reported, using consumables, including adhesives, carbon ink, graphite, pencil, office paper, paperboard, among others. In this sense, in this mini-review, we discuss various strategies explored to fabricate low-cost electrochemical sensors, including its main applications. Different manufacturing methods, such as screen and stencil printing, laser-scribing, and pencil drawing, will be discussed here, emphasizing the performance of the obtained devices, in addition to their advantages and disadvantages. (AU)

• FAPESP's process: 18/08782-1 - Miniaturized and integrated chemical sensors: new fabrication platforms for biological, clinical and environmental applications
• Grantee: Mauro Bertotti
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 18/16250-0 - Development of portable electrochemical devices on polymer materials using CO2 laser for analytical applications
• Grantee: Letícia Francine Mendes
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 18/14462-0 - Fabrication of electrochemical paper-based device aiming clinical and environmental applications
• Grantee: Vanessa Neiva de Ataide
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 17/21097-3 - Bee-agriculture interactions: perspectives to sustainable use
• Grantee: Osmar Malaspina
• Support Opportunities: BIOTA-FAPESP Program - Thematic Grants