Figure |Multi-material multi-photon 3D laser micro- and nanoprinting. (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Figure |Multi-material multi-photon 3D laser micro- and nanoprinting.

Caption

a, Approaches for manufacturing 3D multi-material microarchitectures using multi-photon 3D laser printing. After the exposure and development cycle of a first photoresist, a second photoresist is drop-casted manually, exposed, developed, etc. This approach can be realized by palette-based approach or microfluidic-chamber. Herein, all photoresists and developers are delivered to the printing region via a stage or microfluidic chamber. b, 3D stimulus-responsive multi-material based scaffold serving as a micro-stretch-bench for cells (green), specifically adhering to the red arrow area. The host-guest hydrogel in the middleswells reproducibly and thereby bends the elastic polymer lamellae. c, 3D deterministic fluorescent security feature containing four differently doped polymers emitting at four different wavelengths (red, blue, green, and yellow) and one non-fluorescent polymer component.

Credit

by Liang Yang, Frederik Mayer, Uwe H. F. Bunz, Eva Blasco and Martin Wegener

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