Posttreatment of 3D-printed surfaces for electrochemical applications: A critical review on proposed protocols

Author(s)

Rocha, Diego P. ; Rocha, Raquel G. ; Castro, Silvia V. F. ; Trindade, Magno A. G. ; Munoz, Rodrigo A. A. ; Richter, Eduardo M. ; Angnes, Lucio

• Document type: Journal article
• Source: ELECTROCHEMICAL SCIENCE ADVANCES; v. 2, n. 5, p. 15-pg., 2022-10-01.

Abstract

This mini-review presents an overview of recent trends for 3D printed sensors and biosensors (with a focus on Fused Deposition Modeling (FDM) based technology), along with their posttreatment surfaces to improve electrochemical applications. The protocols described in the literature and advances in this field were covered, bringing a critical discussion about the achievements and limitations to improve the electrical properties of conducting filaments, as well as their electroanalytical performance. In addition, the pros and cons of the processes used in surface posttreatment to improve the performance of electrodes constructed by FDM are presented, comparing the time consumed during chemical and electrochemical treatments or combining the two to improve the characteristics of the sensors. Finally, the discussion about the real necessity of surface treatments of electrodes constructed by FDM technology, the techniques used for this, and some ecological protocols are discussed (surface posttreatments with and without reagents) or whether the simple optimization of printing parameters could also significantly improve the electrochemical performance of sensors built with such technologies. (AU)

• FAPESP's process: 14/50867-3 - INCT 2014: National Institute of Science and Technology in Bioanalysis
• Grantee: Marco Aurelio Zezzi Arruda
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 20/00325-0 - Production of conductive filaments containing carbon nanomaterials and metal nanoparticles for the development of low cost enzymeless electrochemical biosensors via additive manufacturing
• Grantee: Diego Pessoa Rocha
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 17/13137-5 - Formation and properties of hemiesters of carbonic acid in aqueous medium
• Grantee: Claudimir Lucio Do Lago
• Support Opportunities: Research Projects - Thematic Grants