3D printed device for epitachophoresis

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Publikace nespadá pod Filozofickou fakultu, ale pod Středoevropský technologický institut. Oficiální stránka publikace je na webu muni.cz.
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VORACOVA I. PRIKRYL J. NOVOTNY J. DATINSKA V. YANG J. ASTIER Y. FORET František

Rok publikování 2021
Druh Článek v odborném periodiku
Časopis / Zdroj Analytica Chimica Acta
Fakulta / Pracoviště MU

Středoevropský technologický institut

Citace
www https://www.sciencedirect.com/science/article/pii/S0003267021000726?via%3Dihub
Doi http://dx.doi.org/10.1016/j.aca.2021.338246
Klíčová slova 3D printing; Epitachophoresis; Electromigration method; Sample concentration
Popis Polyacrylamide or agarose gels are the most frequently used sieving and stabilizing media in slab gel electrophoresis. Recently, we have introduced a new electrophoretic technique for concentration/separation of milliliter sample volumes. In this technique, the gel is used primarily as an anticonvection media eliminating liquid flow during the electromigration. While serving well for the liquid stabilization, the gels can undergo deformation when exposed to a discontinuous electrolyte buffer system used in epitachophoresis. In this work, we have explored 3D printing to form rigid stabilizing manifolds to minimize liquid flow during the epitachophoresis run. The whole device was printed using the stereolithography technique from a low water-absorbing resin. The stabilizing manifold, serving as the gel substitute, was printed as a replaceable composite structure preventing electrolyte mixing during the separation. Different geometries of the 3D printed stabilizing manifolds were tested for use in concentrating ionic sample components without spatial separation. The presented device can focus analytes from 3 or 4 mL of the sample to 150 mu L or less, depending on the collection cup size. With the 150 mu L collection cup, this represents the enrichment factor from 20 to 27. The time of concentration was from 15 to 25 min, depending on stabilization media and power used. (C) 2021 Elsevier B.V. All rights reserved.
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