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Title: Deposition and characterization of lines printed through laser-induced forward transfer
Author: Palla-Papavlu, A.
Córdoba, C.
Patrascioiu, Adrian
Fernández Pradas, Juan Marcos
Morenza Gil, José Luis
Serra Coromina, Pere
Keywords: Biomolècules
Solucions (Química)
Solution (Chemistry)
Issue Date: 2013
Publisher: Springer Verlag
Abstract: The possibility of printing two-dimensional micropatterns of biomolecule solutions is of great interest in many fields of research in biomedicine, from cell-growth and development studies to the investigation of the mechanisms of communication between cells. Although laser-induced forward transfer (LIFT) has been extensively used to print micrometric droplets of biological solutions, the fabrication of complex patterns depends on the feasibility of the technique to print micron-sized lines of aqueous solutions. In this study we investigate such a possibility through the analysis of the influence of droplet spacing of a water and glycerol solution on the morphology of the features printed by LIFT. We prove that it is indeed possible to print long and uniform continuous lines by controlling the overlap between adjacent droplets. We show how, depending on droplet spacing, several printed morphologies are generated, and we offer, in addition, a simple explanation of the observed behavior based on the jetting dynamics characteristic of the LIFT of liquids.
Note: Versió postprint del document publicat a: 10.1007/s00339-012-7279-6
It is part of: Applied Physics A-Materials Science & Processing, 2013, vol. 110, num. 4, p. 751-755
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ISSN: 0947-8396
Appears in Collections:Articles publicats en revistes (Física Aplicada)

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