Electroosmotic flow in fused deposition modeling (FDM) 3D-printed microchannels.

Autor: Barbosa FHB; Institute of Chemistry, University of Campinas, Campinas, São Paulo, Brazil., Quero RF; Institute of Chemistry, University of Campinas, Campinas, São Paulo, Brazil., Rocha KN; Institute of Chemistry, University of Campinas, Campinas, São Paulo, Brazil., Costa SC; Institute of Chemistry, University of Campinas, Campinas, São Paulo, Brazil., de Jesus DP; Institute of Chemistry, University of Campinas, Campinas, São Paulo, Brazil.; Instituto Nacional de Ciência e Tecnologia de Bioanalítica, Campinas, São Paulo, Brazil.
Jazyk: angličtina
Zdroj: Electrophoresis [Electrophoresis] 2023 Mar; Vol. 44 (5-6), pp. 558-562. Date of Electronic Publication: 2022 Dec 19.
DOI: 10.1002/elps.202200211
Abstrakt: Electroosmotic flow (EOF) was determined in tridimensional (3D)-printed microchannels with dimensions smaller than 100 µm. Fused deposition modeling 3D printing using thermoplastic filaments of PETG (polyethylene terephthalate glycol), PLA (polylactic acid), and ABS (acrylonitrile butadiene styrene) were used to fabricate the microchannels. The current monitoring method and sodium phosphate solutions at different pH values (3-10) were used for the EOF mobility (µ EOF ) measurements, which ranged from 2.00 × 10 -4 to 12.52 × 10 -4  cm 2  V -1  s -1 . The highest and the smallest µ EOF were obtained for the PLA and PETG microchannels, respectively. Adding the cationic surfactant cetyltrimethylammonium bromide to the sodium phosphate solution caused EOF direction reversion in all the studied microchannels. The obtained results can be interesting for developing 3D-printed microfluidic devices, in which EOF is relevant.
(© 2022 Wiley-VCH GmbH.)
Databáze: MEDLINE
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