UpNano tool talk: Pushing resolution and speed limits in 3D printing—Mar. 29


DATE: Tuesday, March 29, 2022
TIME: 10 a.m. – 11 a.m. EDT
SPEAKER: Henrik Åkesson, Head of Global Sales, UpNano
LOCATION: 12-0168; individuals outside MIT can join via Zoom: mit.zoom.us/j/94586100937
A follow-up discussion will take place in person only from 11 a.m. – 12 p.m. EDT.



The unique capabilities of 2-photon polymerization (2PP) for 3D printing have allowed researchers in recent years to create a variety of micron and submicron photopolymerized structures, as well as extend the capabilities for fabrication of micro-components and MEMS [1]. Limitations of other additive manufacturing strategies include low resolution and sensitivity to prolonged UV exposure. Due to nonlinearity of the 2PP process upon near-infrared laser pulse absorption by a photosensitive material, polymerization will only occur in the area where the laser focal point is directed, therefore this method does not require layer-by-layer deposition of the material. Additionally, high resolution is achievable by polymerizing small volume pixels by controlling the exposure dose [2].

In this seminar, UpNano GmbH will present their NanoOne 3D printing technology and highlight several recent case studies where the tool has been used to push the high-resolution limits currently attainable in manufacturing. NanoOne stands out relative to other commercial 2PP systems due to the significantly higher speed, piezo precision stage, and mesoscale build volume.

This talk will feature recent work in bioprinting whereby 2PP was used to generate microvascular structures directly on-chip [2]. It will also highlight a study where 2PP was used to build high-purity conductive platinum nanostructures with applications in micro-heathers, thermocouple sensors, and Lab-on-a-Chip systems [3]. Future work to fully-integrate connectors into complex 3D-printed microfluidic systems and the micro-factory concept will be discussed.

[1]  Int J Adv Manuf Technol (2010) 48: 435 – 441.
[2]  Biofabrication (2021) 13: 015016.
[3]  Adv Mater (2021) 33: 2101992.