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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

3D-printed microchip electrophoresis device containing spiral electrodes for integrated capacitively coupled contactless conductivity detection

Full text
Author(s):
Costa, Brenda M. C. [1] ; Coelho, Aline G. [1] ; Beauchamp, Michael J. [2] ; Nielsen, Jacob B. [2] ; Nordin, Gregory P. [3] ; Woolley, Adam T. [2] ; da Silva, Jose A. F. [1, 4]
Total Authors: 7
Affiliation:
[1] Univ Estadual Campinas, Chem Inst, BR-13083861 Campinas, SP - Brazil
[2] Brigham Young Univ, Dept Chem & Biochem, Provo, UT 84602 - USA
[3] Brigham Young Univ, Dept Elect & Comp Engn, Provo, UT 84602 - USA
[4] Inst Nacl Ciencia & Tecnol Bioanalit INCTBio, BR-13083861 Campinas, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: ANALYTICAL AND BIOANALYTICAL CHEMISTRY; v. 414, n. 1, SI JUL 2021.
Web of Science Citations: 1
Abstract

In this work, we demonstrate for the first time the design and fabrication of microchip electrophoresis devices containing cross-shaped channels and spiral electrodes around the separation channel for microchip electrophoresis and capacitively coupled contactless conductivity detection. The whole device was prepared in a digital light processing-based 3D printer in poly(ethylene glycol) diacrylate resin. Outstanding X-Y resolution of the customized 3D printer ensured the fabrication of 40-gm cross section channels. The spiral channels were filled with melted gallium to form conductive electrodes around the separation channel. We demonstrate the applicability of the device on the separation of sodium, potassium, and lithium cations by microchip electrophoresis. (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: 13/22127-2 - Development of novel materials strategic for integrated analytical devices
Grantee:Lauro Tatsuo Kubota
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 18/06478-3 - Use of 3D Printing on the Fabrication of Microfluidic Devices
Grantee:José Alberto Fracassi da Silva
Support Opportunities: Regular Research Grants