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Multimaterial 3D laser microprinting using an integrated microfluidic system

Mayer, Frederik; Richter, Stefan; Westhauser, Johann; Blasco, Eva; Barner-Kowollik, Christopher; Wegener, Martin

Three-dimensional (3D) laser micro- and nanoprinting has become a versatile, reliable, and commercially available technology for the preparation of complex 3D architectures for diverse applications. However, the vast majority of structures published so far have been composed of only a single constituent material. Here, we present a system based on a microfluidic chamber integrated into a state-of-the-art laser lithography apparatus. This system is scalable in terms of the number of materials and eliminates the need to go back and forth between the lithography instrument and the chemistry room numerous times, with tedious realignment steps in between. As an application, we present 3D deterministic microstructured security features requiring seven different liquids: a nonfluorescent photoresist as backbone, two photoresists containing different fluorescent quantum dots, two photoresists with different fluorescent dyes, and two developers. Our integrated microfluidic 3D printing system opens the door to truly multimaterial 3D additive manufacturing on the micro- and nanoscale.

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Verlagsausgabe §
DOI: 10.5445/IR/1000090939
Veröffentlicht am 13.02.2019
DOI: 10.1126/sciadv.aau9160
Seitenaufrufe: 21
seit 14.02.2019
Downloads: 17
seit 14.02.2019
Zugehörige Institution(en) am KIT Institut für Angewandte Physik (APH)
Institut für Technische Chemie und Polymerchemie (ITCP)
Institut für Physikalische Chemie (IPC)
Institut für Nanotechnologie (INT)
Institut für Biologische Grenzflächen (IBG)
Publikationstyp Zeitschriftenaufsatz
Jahr 2019
Sprache Englisch
Identifikator ISSN: 2375-2548
KITopen-ID: 1000090939
HGF-Programm 43.23.01 (POF III, LK 01)
Erschienen in Science advances
Band 5
Heft 2
Seiten Article: eaau9160
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Vorab online veröffentlicht am 08.02.2019
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